Palace of Westminster - wikipedia Palace of Westminster `` Houses of Parliament '' redirects here. For other uses, see Houses of Parliament ( disambiguation ). Palace of Westminster The Palace of Westminster with Elizabeth Tower and Westminster Bridge, viewed from across the River Thames Location City of Westminster, London, England Coordinates 51 ° 29 ′ 57 '' N 00 ° 07 ′ 29 '' W ﻿ / ﻿ 51.49917 ° N 0.12472 ° W ﻿ / 51.49917 ; - 0.12472 Coordinates : 51 ° 29 ′ 57 '' N 00 ° 07 ′ 29 '' W ﻿ / ﻿ 51.49917 ° N 0.12472 ° W ﻿ / 51.49917 ; - 0.12472 Area 112,476 m ( 1,210,680 sq ft ) ( internal ) Built 1016 Demolished 1834 ( due to fire ) Rebuilt 1840 -- 70 Architectural style ( s ) Perpendicular Gothic Revival Owner Queen Elizabeth II in right of the Crown UNESCO World Heritage Site Official name : Palace of Westminster, Westminster Abbey, and St Margaret 's Church Type Cultural Criteria i, ii, iv Designated 1987 ( 11th session ) Reference no. 426 Country United Kingdom Region Europe Extensions 2008 Listed Building -- Grade I Official name : Houses of Parliament / The Palace of Westminster Designated 5 February 1970 Reference no. 1226284 Location of the Palace of Westminster in central London The Palace of Westminster is the meeting place of the House of Commons and the House of Lords, the two houses of the Parliament of the United Kingdom. Commonly known as the Houses of Parliament after its occupants, the Palace lies on the north bank of the River Thames in the City of Westminster, in central London. Its name, which is derived from the neighbouring Westminster Abbey, may refer to either of two structures : the Old Palace, a medieval building complex destroyed by fire in 1834, and its replacement, the New Palace that stands today. The palace is owned by the monarch in right of the Crown and for ceremonial purposes, retains its original status as a royal residence. The building is managed by committees appointed by both houses, which report to the Speaker of the House of Commons and the Lord Speaker. The first royal palace was built on the site in the 11th century, and Westminster was the primary residence of the Kings of England until fire destroyed much of the complex in 1512. After that, it served as the home of the Parliament of England, which had been meeting there since the 13th century, and also as the seat of the Royal Courts of Justice, based in and around Westminster Hall. In 1834, an even greater fire ravaged the heavily rebuilt Houses of Parliament, and the only significant medieval structures to survive were Westminster Hall, the Cloisters of St Stephen 's, the Chapel of St Mary Undercroft, and the Jewel Tower. The subsequent competition for the reconstruction of the Palace was won by the architect Charles Barry, whose design was for new buildings in the Gothic Revival style, specifically inspired by the English Perpendicular Gothic style of the 14th -- 16th centuries. The remains of the Old Palace ( except the detached Jewel Tower ) were incorporated into its much larger replacement, which contains over 1,100 rooms organised symmetrically around two series of courtyards and has a floor area of 112,476 m ( 1,210,680 sq ft ). Part of the New Palace 's area of 3.24 hectares ( 8 acres ) was reclaimed from the Thames, which is the setting of its nearly 300 - metre long ( 980 ft ) façade, called the River Front. Barry was assisted by Augustus Pugin, a leading authority on Gothic architecture and style, who designed the interior of the Palace. Construction started in 1840 and lasted for 30 years, suffering great delays and cost overruns, as well as the death of both leading architects ; works for the interior decoration continued intermittently well into the 20th century. Major conservation work has been carried out since then to reverse the effects of London 's air pollution, and extensive repairs took place after the Second World War, including the reconstruction of the Commons Chamber following its bombing in 1941. The Palace is one of the centres of political life in the United Kingdom ; `` Westminster '' has become a metonym for the UK Parliament, and the Westminster system of government has taken its name after it. The Elizabeth Tower, in particular, which is often referred to by the name of its main bell, Big Ben, is an iconic landmark of London and the United Kingdom in general, one of the most popular tourist attractions in the city, and an emblem of parliamentary democracy. The Palace of Westminster has been a Grade I listed building since 1970 and part of a UNESCO World Heritage Site since 1987. Contents 1 History 1.1 Old Palace 1.2 Fire and reconstruction 1.2. 1 Frescoes 1.3 Recent history 2 Exterior 2.1 Stonework 2.2 Towers 2.3 Grounds 3 Interior 3.1 Layout 3.2 Norman Porch 3.3 Queen 's Robing Room 3.4 Royal Gallery 3.5 Prince 's Chamber 3.6 Lords Chamber 3.7 Peers ' Lobby 3.8 Central Lobby 3.9 Members ' Lobby 3.10 Commons Chamber 3.11 Westminster Hall 3.12 Other rooms 4 Security 4.1 Incidents 5 Rules and traditions 5.1 Eating, drinking and smoking 5.2 Dress code 5.3 Other traditions 6 Culture and tourism 7 See also 8 Notes 9 References 10 Further reading 11 External links History Old Palace Conjectural restoration of Westminster during the reign of Henry VIII St Stephen 's Chapel in the centre dominates the whole site, with the White Chamber and Painted Chamber on the left and Westminster Hall on the right. Westminster Abbey is in the background. Parliament before 1834 Fire with Old Palace Yard in foreground Vardy 's Stone Building is on the left, with Soane 's law courts and the south gable end of Westminster Hall visible behind. In the centre is Wyatt 's `` Cotton Mill '' frontage of the House of Lords. Soane 's ceremonial entrance is on the far - right. The Palace of Westminster site was strategically important during the Middle Ages, as it was located on the banks of the River Thames. Known in medieval times as Thorney Island, the site may have been first - used for a royal residence by Canute the Great during his reign from 1016 to 1035. St Edward the Confessor, the penultimate Anglo - Saxon monarch of England, built a royal palace on Thorney Island just west of the City of London at about the same time as he built Westminster Abbey ( 1045 -- 50 ). Thorney Island and the surrounding area soon became known as Westminster ( a contraction of the words West Minster ). Neither the buildings used by the Anglo - Saxons nor those used by William I survive. The oldest existing part of the Palace ( Westminster Hall ) dates from the reign of William I 's successor, King William II. The Palace of Westminster was the monarch 's principal residence in the late Medieval period. The predecessor of Parliament, the Curia Regis ( Royal Council ), met in Westminster Hall ( although it followed the King when he moved to other palaces ). Simon de Montfort 's parliament, the first to include representatives of the major towns, met at the Palace in 1265. The `` Model Parliament '', the first official Parliament of England, met there in 1295, and almost all subsequent English Parliaments and then, after 1707, all British Parliaments have met at the Palace. In 1512, during the early years of the reign of King Henry VIII, fire destroyed the royal residential ( `` privy '' ) area of the palace. In 1534, Henry VIII acquired York Place from Cardinal Thomas Wolsey, a powerful minister who had lost the King 's favour. Renaming it the Palace of Whitehall, Henry used it as his principal residence. Although Westminster officially remained a royal palace, it was used by the two Houses of Parliament and by the various royal law courts. A detail from John Rocque 's 1746 map of London. St Stephen 's Chapel, labelled `` H of Comm '' ( House of Commons ), was adjacent to Westminster Hall ; the Parliament Chamber -- labelled `` H of L '' ( House of Lords ) -- and the Prince 's Chamber were to the far south. The Court of Requests, between the two Houses, would become the new home of the Lords in 1801. At the north - east, by the river, stood Speaker 's House. Because it was originally a royal residence, the Palace included no purpose - built chambers for the two Houses. Important state ceremonies were held in the Painted Chamber which had been originally built in the 13th century as the main bedchamber for King Henry III. The House of Lords originally met in the Queen 's Chamber, a modest Medieval hall towards the southern end of the complex, with the adjoining Prince 's Chamber used as the robing room for peers and for the monarch during state openings. In 1801 the Upper House moved into the larger White Chamber ( also known as the Lesser Hall ), which had housed the Court of Requests ; the expansion of the Peerage by King George III during the 18th century, along with the imminent Act of Union with Ireland, necessitated the move, as the original chamber could not accommodate the increased number of peers. The House of Commons, which did not have a chamber of its own, sometimes held its debates in the Chapter House of Westminster Abbey. The Commons acquired a permanent home at the Palace in St Stephen 's Chapel, the former chapel of the royal palace, during the reign of Edward VI. In 1547 the building became available for the Commons ' use following the disbanding of St Stephen 's College. Alterations were made to St Stephen 's Chapel over the following three centuries for the convenience of the lower House, gradually destroying, or covering up, its original mediaeval appearance. A major renovation project undertaken by Christopher Wren in the late 17th century completely redesigned the building 's interior. The Palace of Westminster as a whole began to see significant alterations from the 18th century onwards, as Parliament struggled to carry out its business in the limited available space and ageing buildings. Calls for an entirely new palace went unheeded as instead more buildings of varying quality and style were added. A new west façade, known as the Stone Building, facing onto St Margaret 's Street was designed by John Vardy built in the Palladian style between 1755 and 1770, providing more space for document storage and committee rooms. The House of Commons Engrossing Office of Robert Gunnell ( 1724 - 1794 ) and Edward Barwell was on the lower floor beside the corner tower at the west side of Vardy 's western façade. A new official residence for the Speaker of the House of Commons was built adjoining St Stephen 's Chapel and completed in 1795. The neo-Gothic architect James Wyatt also carried out works on both the House of Lords and Commons between 1799 and 1801, including alterations to the exterior of St Stephen 's Chapel and a much - derided new neo-Gothic building, referred to by Wyatt 's critics as `` The Cotton Mill '' adjoining the House of Lords and facing onto Old Palace Yard. The palace complex was substantially remodelled, this time by Sir John Soane, between 1824 and 1827. The medieval House of Lords chamber, which had been the target of the failed Gunpowder Plot of 1605, was demolished as part of this work in order to create a new Royal Gallery and ceremonial entrance at the southern end of the palace. Soane 's work at the palace also included new library facilities for both Houses of Parliament and new law courts for the Chancery and King 's Bench. Soane 's alterations caused controversy owing to his use of neo-classical architectural styles, which conflicted with the Gothic style of the original buildings. Fire and reconstruction J.M.W. Turner watched the fire of 1834 and painted several canvasses depicting it, including The Burning of the Houses of Lords and Commons ( 1835 ). Main article : Burning of Parliament On 16 October 1834, a fire broke out in the Palace after an overheated stove used to destroy the Exchequer 's stockpile of tally sticks set fire to the House of Lords Chamber. In the resulting conflagration both Houses of Parliament were destroyed, along with most of the other buildings in the palace complex. Westminster Hall was saved thanks to fire - fighting efforts and a change in the direction of the wind. The Jewel Tower, the Undercroft Chapel and the Cloisters and Chapter House of St Stephen 's were the only other parts of the Palace to survive. Immediately after the fire, King William IV offered the almost - completed Buckingham Palace to Parliament, hoping to dispose of a residence he disliked. The building was considered unsuitable for parliamentary use, however, and the gift was rejected. Proposals to move to Charing Cross or St James 's Park had a similar fate ; the allure of tradition and the historical and political associations of Westminster proved too strong for relocation, despite the deficiencies of that site. In the meantime, the immediate priority was to provide accommodation for the next Parliament, and so the Painted Chamber and White Chamber were hastily repaired for temporary use by the Houses of Lords and Commons respectively, under the direction of the only remaining architect of the Office of Works, Sir Robert Smirke. Works proceeded quickly and the chambers were ready for use by February 1835. In his speech opening Parliament in 1835, the King assured the members that the fire was accidental, and left it to Parliament itself to make `` plans for ( its ) permanent accommodation. '' Each house created a committee and a public debate over the proposed styles ensued. The neo-Classical approach, similar to that of the White House and the Federal Capitol in the United States, was popular at the time and had already been used by Soane in his additions to the old palace, but had connotations of revolution and republicanism, whereas Gothic design embodied conservative values. The committee in the House of Lords announced in June 1835 that `` the style of the buildings should be either Gothic or Elizabethan ''. On 14 July 1835 a Royal Commission was appointed. The chairman was Charles Hanbury - Tracy and the other members were Edward Cust, Thomas Liddell, the poet Samuel Rogers and the artist George Vivian. The Commission accepted the recommendation of a competition, and architects began submitting proposals following some basic criteria. Sir Charles Barry conceived the winning design for the New Houses of Parliament and supervised its construction until his death in 1860. ( Portrait by John Prescott Knight ) London. Westminster Bridge and House of Parliament, c. 1910. In February 1836, after studying 97 proposals, the Commission chose Charles Barry 's plan for a Gothic - style palace, awarding him a prize ( or `` premium '' ) of £ 1500. Premiums of £ 500 each were given to David Hamilton, J.C. Buckler and William Railton. The Architectural Magazine summarised Barry 's winning plan as `` a quadrangular pile, with the principal front facing the Thames, and a tower in the centre, 170ft high ''. Barry, whose own architectural style was more classical than Gothic, built the new palace upon the neo-classical principle of symmetry. Augustus Pugin was instrumental in helping Barry win the Commission. Pugin 's contribution can be seen in the Gothic detail, the vanes and spires. Pugin also contributed greatly to the distinctive Gothic interiors, including wallpapers, carvings, stained glass, floor tiles, metalwork and furniture. In 1840 the foundation stone was laid by Charles ' wife Sarah ( née Rowsell ) ; the Lords Chamber was completed in 1847, and the Commons Chamber in 1852 ( at which point Barry received a knighthood ). Although most of the work had been carried out by 1860, construction was not finished until a decade afterwards. Frescoes With the building itself taking shape, it was time to think about its internal adornments. In a process overseen by a Royal Fine Art Commission under the presidency of Prince Albert, a Select Committee which included Sir Robert Peel started to take witness accounts from experts in 1841. Those experts included Sir Martin Archer Shee, P.R.A., and Charles Lock Eastlake, painter and acknowledged authority on art history, soon to be first director of the National Gallery and de facto administrator of the whole Westminster decoration project. It was decided that the opportunity should be seized to encourage the development of a national British school of History Painting, and that the paintings should be done in fresco. The call for artists to submit proposals resulted in a first exhibition in 1843 at Westminster Hall in which 140 cartoons were shown. Others followed but the progress was slow. Fresco proved to be a problematic technique for the English climate. The wall surfaces to be covered being vast, a number of paintings were in fact done in oil on canvas. With the death of Prince Albert in 1861 the scheme lost its driving force, but by then many paintings were completed or underway. William Dyce, who was the first to start fresco work in 1848, died in 1864, completing only five of seven commissioned works. The other major contributors were John Rogers Herbert, finishing in 1864 but having had some commissions cancelled, Charles West Cope who worked until 1869, Edward Matthew Ward until 1874, Edward Armitage, George Frederic Watts, John Callcott Horsley, John Tenniel and Daniel Maclise. In the 20th century, further paintings were commissioned from other artists. Recent history During the Second World War ( see The Blitz ), the Palace of Westminster was hit by bombs on fourteen separate occasions. One bomb fell into Old Palace Yard on 26 September 1940 and severely damaged the south wall of St Stephen 's Porch and the west front. The statue of Richard the Lionheart was lifted from its pedestal by the force of the blast, and its upheld sword bent, an image that was used as a symbol of the strength of democracy, `` which would bend but not break under attack ''. Another bomb destroyed much of the Cloisters on 8 December. The old chamber of the House of Commons was in use between 1852 and 1941, when it was destroyed by German bombs in the course of the Second World War. The worst raid took place in the night of 10 / 11 May 1941, when the Palace took at least twelve hits and three people ( two policemen and the Resident Superintendent of the House of Lords, Edward Elliott ) were killed. An incendiary bomb hit the chamber of the House of Commons and set it on fire ; another set the roof of Westminster Hall alight. The firefighters could not save both, and a decision was taken to try to rescue the Hall. In this they were successful ; the abandoned Commons Chamber, on the other hand, was destroyed, as was the Members ' Lobby. A bomb also struck the Lords Chamber, but went through the floor without exploding. The Clock Tower took a hit by a small bomb or anti-aircraft shell at the eaves of the roof, suffering much damage there. All the glass on the south dial was blown out, but the hands and bells were not affected, and the Great Clock continued to keep time accurately. Following the destruction of the Commons Chamber, the Lords offered their own debating chamber for the use of the Commons ; for their own sittings the Queen 's Robing Room was converted into a makeshift chamber. The Commons Chamber was rebuilt after the war under the architect Sir Giles Gilbert Scott, in a simplified version of the old chamber 's style. The work was undertaken by John Mowlem & Co., and construction lasted until 1950, when King George VI opened the new chamber in a ceremony which took place in Westminster Hall on 26 October. The Lords Chamber was then renovated over the ensuing months ; the Lords re-occupied it in May 1951. As the need for office space in the Palace increased, Parliament acquired office space in the nearby Norman Shaw Building in 1975, and in the custom - built Portcullis House, completed in 2000. This increase has enabled all MPs to have their own office facilities. The Palace of Westminster, which is a Grade 1 listed building, is in urgent need of extensive restoration to its fabric. A 2012 pre feasibility report set out several options, including the possibility of parliament moving to other premises while work is carried out, also at this time the option of moving Parliament to another new build location was discounted for the preference of staying at the Westminster site. An Independent Options Appraisal Report released in June 2015 found that the cost to restore the Palace of Westminster could cost as much as £ 7.1 billion if MPs remain at the Palace whilst works take place. MPs decided in 2016 to vacate the building for six years starting in 2022. Exterior River front of the Palace of Westminster View from across the Thames in the morning...... and at dusk. Portcullis House is visible on the right. Sir Charles Barry 's collaborative design for the Palace of Westminster uses the Perpendicular Gothic style, which was popular during the 15th century and returned during the Gothic revival of the 19th century. Barry was a classical architect, but he was aided by the Gothic architect Augustus Pugin. Westminster Hall, which was built in the 11th century and survived the fire of 1834, was incorporated in Barry 's design. Pugin was displeased with the result of the work, especially with the symmetrical layout designed by Barry ; he famously remarked, `` All Grecian, sir ; Tudor details on a classic body ''. Stonework In 1839 Charles Barry toured Britain, looking at quarries and buildings, with a committee which included two leading geologists and a stonecarver. They selected Anston, a sand - coloured magnesian limestone quarried in the villages of Anston, South Yorkshire and Mansfield Woodhouse, Nottinghamshire. Two quarries were chosen from a list of 102, with the majority of the stone coming from the former. A crucial consideration was transportation, achieved on water via the Chesterfield Canal, the North Sea, and the rivers Trent and Thames. Furthermore, Anston was cheaper, and `` could be supplied in blocks up to four feet thick and lent itself to elaborate carving. '' Barry 's New Palace of Westminster was rebuilt using the sandy - coloured Anston limestone. However, the stone soon began to decay due to pollution and the poor quality of some of the stone used. Although such defects were clear as early as 1849, nothing was done for the remainder of the 19th century even after much studying. During the 1910s, however, it became clear that some of the stonework had to be replaced. In 1928 it was deemed necessary to use Clipsham stone, a honey - coloured limestone from Rutland, to replace the decayed Anston. The project began in the 1930s but was halted by the outbreak of the Second World War, and completed only during the 1950s. By the 1960s pollution had again begun to take its toll. A stone conservation and restoration programme to the external elevations and towers began in 1981, and ended in 1994. As of October 2012, the north wall of Westminster Hall is undergoing restoration. The restoration of the inner courtyards is also ongoing. As of April 2012, four have been completed, including the two largest ( Speaker 's Court and Royal Court ) ; the rest are scheduled to be completed by October 2016. Towers Main articles : Victoria Tower and Big Ben Victoria Tower was the most conspicuous feature of Charles Barry 's design for the New Palace of Westminster. At the time of its completion, it was the tallest secular building in the world. The Palace of Westminster features three main towers. Of these, the largest and tallest is 98.5 - metre ( 323 ft ) Victoria Tower, which occupies the south - western corner of the Palace. Originally named `` The King 's Tower '' because the fire of 1834 which destroyed the old Palace of Westminster occurred during the reign of King William IV, the tower was an integral part of Barry 's original design, of which he intended it to be the most memorable element. The architect conceived the great square tower as the keep of a legislative `` castle '' ( echoing his selection of the portcullis as his identifying mark in the planning competition ), and used it as the royal entrance to the Palace and as a fireproof repository for the archives of Parliament. Victoria Tower was re-designed several times, and its height increased progressively ; upon its completion in 1858, it was the tallest secular building in the world. At the base of the tower is the Sovereign 's Entrance, used by the monarch whenever entering the Palace to open Parliament or for other state occasions. The 15 m ( 50 ft ) high archway is richly decorated with sculptures, including statues of Saints George, Andrew and Patrick, as well as of Queen Victoria herself. The main body of Victoria Tower houses the three million documents of the Parliamentary Archives in 8.8 kilometres ( 5.5 mi ) of steel shelves spread over 12 floors ; these include the master copies of all Acts of Parliament since 1497, and important manuscripts such as the original Bill of Rights and the death warrant of King Charles I. At the top of the cast - iron pyramidal roof is a 22 m ( 73 ft ) flagstaff, from which flies the Royal Standard ( the monarch 's personal flag ) when the Sovereign is present in the Palace. On all other days the Union Flag flies from the mast. The fame of Elizabeth Tower has surpassed that of the Palace itself. The structure has largely become synonymous with Big Ben, the heaviest of the five bells it houses. At the north end of the Palace rises the most famous of the towers, Elizabeth Tower, commonly known as Big Ben. At 96 metres ( 316 ft ), it is only slightly shorter than Victoria Tower but much slimmer. Originally known simply as the Clock Tower ( the name Elizabeth Tower was conferred on it in 2012 to celebrate the Diamond Jubilee of Elizabeth II ), it houses the Great Clock of Westminster, built by Edward John Dent on designs by amateur horologist Edmund Beckett Denison. Striking the hour to within a second of the time, the Great Clock achieved standards of accuracy considered impossible by 19th - century clockmakers, and it has remained consistently reliable since it entered service in 1859. The time is shown on four dials 7 metres ( 23 ft ) in diameter, which are made of milk glass and are lit from behind at night ; the hour hand is 2.7 metres ( 8 ft 10 in ) long and the minute hand 4.3 metres ( 14 ft ). The Clock Tower was designed by Augustus Pugin and built after his death. Charles Barry asked Pugin to design the clock tower because Pugin had previously helped Barry design the Palace. In the 2012 BBC Four documentary, Richard Taylor gives a description of Pugin 's Clock Tower : `` It rises up from the ground in this stately rhythm, higher and higher, before you reach the clock face, picked out as a giant rose, its petals fringed with gold. Medieval windows above that and then it hits the grey slate roof, its greyness relieved by those delicate little windows again picked out in gold leaf. And then rises up again in a great jet of gold to the higher roof that curves gracefully upwards to a spire with a crown and flowers and a cross. It 's elegant and grand and has fairy tale qualities. '' Five bells hang in the belfry above the clock. The four quarter bells strike the Westminster Chimes every quarter - hour. The largest bell strikes the hours ; officially called The Great Bell of Westminster, it is generally referred to as Big Ben, a nickname of uncertain origins which, over time, has been colloquially applied to the whole tower. The first bell to bear this name cracked during testing and was recast ; the present bell later developed a crack of its own, which gives it a distinctive sound. It is the third - heaviest bell in Britain, weighing 13.8 tonnes. In the lantern at the top of Elizabeth Tower is the Ayrton Light, which is lit when either House of Parliament is sitting after dark. It was installed in 1885 at the request of Queen Victoria -- so that she could see from Buckingham Palace whether the members were `` at work '' -- and named after Acton Smee Ayrton, who was First Commissioner of Works in the 1870s. The slender form of the Central Tower, which was designed as a spire, markedly contrasts with the more massive square towers at the ends of the Palace. The shortest of the Palace 's three principal towers ( at 91 metres ( 299 ft ) ), the octagonal Central Tower stands over the middle of the building, immediately above the Central Lobby. It was added to the plans on the insistence of Dr. David Boswell Reid, who was in charge of the ventilation of the new Houses of Parliament : his plan called for a great central chimney through which what he called `` vitiated air '' would be drawn out of the building with the heat and smoke of about four hundred fires around the Palace. To accommodate the tower, Barry was forced to lower the lofty ceiling he had planned for the Central Lobby and reduce the height of its windows ; however, the tower itself proved to be an opportunity to improve the Palace 's exterior design, and Barry chose for it the form of a spire in order to balance the effect of the more massive lateral towers. In the end, the Central Tower failed completely to fulfill its stated purpose, but it is notable as `` the first occasion when mechanical services had a real influence on architectural design ''. Apart from the pinnacles which rise from between the window bays along the fronts of the Palace, numerous turrets enliven the building 's skyline. Like the Central Tower, these have been added for practical reasons, and mask ventilation shafts. There are some other features of the Palace of Westminster which are also known as towers. St Stephen 's Tower is positioned in the middle of the west front of the Palace, between Westminster Hall and Old Palace Yard, and houses the public entrance to the Houses of Parliament, known as St Stephen 's Entrance. The pavilions at the northern and southern ends of the river front are called Speaker 's Tower and Chancellor 's Tower respectively, after the presiding officers of the two Houses at the time of the Palace 's reconstruction -- the Speaker of the House of Commons and the Lord Chancellor. Speaker 's Tower contains Speaker 's House, the official residence of the Speaker of the Commons. Grounds See also : Parliamentary Estate Cromwell Green, outside Westminster Hall, is the site of Hamo Thornycroft 's bronze statue of Oliver Cromwell, erected amid controversy in 1899. There are a number of small gardens surrounding the Palace of Westminster. Victoria Tower Gardens is open as a public park along the side of the river south of the palace. Black Rod 's Garden ( named after the office of Gentleman Usher of the Black Rod ) is closed to the public and is used as a private entrance. Old Palace Yard, in front of the Palace, is paved over and covered in concrete security blocks ( see security below ). Cromwell Green ( also on the frontage, and in 2006 enclosed by hoardings for the construction of a new visitor centre ), New Palace Yard ( on the north side ) and Speaker 's Green ( directly north of the Palace ) are all private and closed to the public. College Green, opposite the House of Lords, is a small triangular green commonly used for television interviews with politicians. Interior The Palace of Westminster contains over 1,100 rooms, 100 staircases and 4.8 kilometres ( 3 mi ) of passageways, which are spread over four floors. The ground floor is occupied by offices, dining rooms and bars ; the first floor ( known as the principal floor ) houses the main rooms of the Palace, including the debating chambers, the lobbies and the libraries. The top - two floors are used as committee rooms and offices. Some of the interiors were designed and painted by J.G. Crace, working in collaboration with Pugin and others. For example, Crace decorated and gilded the ceiling of the Chapel of St. Mary Undercroft. Layout Layout of the principal floor ( north is to the right ). The debating chambers of the two Houses and their ante - rooms lie on opposite sides of the Central Lobby and are part of the central spine of the Palace, which includes the suite of ceremonial rooms to the south. The Victoria Tower occupies the south - west corner and the Speaker 's House takes up the north - east corner ; the Elizabeth Tower is at the far north and Westminster Hall protrudes to the west. Instead of one main entrance, the Palace features separate entrances for the different user groups of the building. The Sovereign 's Entrance, at the base of the Victoria Tower, is located in the south - west corner of the Palace and is the starting point of the royal procession route, the suite of ceremonial rooms used by the monarch at State Openings of Parliament. This consists of the Royal Staircase, the Norman Porch, the Robing Room, the Royal Gallery and the Prince 's Chamber, and culminates in the Lords Chamber, where the ceremony takes place. Members of the House of Lords use the Peers ' Entrance in the middle of the Old Palace Yard front, which is covered by a stone carriage porch and opens to an entrance hall. A staircase from there leads, through a corridor, to the Prince 's Chamber. Members of Parliament enter their part of the building from the Members ' Entrance in the south side of New Palace Yard. Their route passes through a cloakroom in the lower level of the Cloisters and eventually reaches the Members ' Lobby directly south of the Commons Chamber. From New Palace Yard, access can also be gained to the Speaker 's Court and the main entrance of the Speaker 's House, located in the pavilion at the north - east corner of the Palace. St Stephen 's Entrance, roughly in the middle of the building 's western front, is the entrance for members of the public. From there, visitors walk through a flight of stairs to St Stephen 's Hall, location of a collection of marbles, which includes Somers Mansfield, Hampden, Walpole, Pitt and Fox. Traversal of this hallway brings them to the octagonal Central Lobby, the hub of the Palace. This hall is flanked by symmetrical corridors decorated with fresco paintings, which lead to the ante - rooms and debating chambers of the two Houses : the Members ' Lobby and Commons Chamber to the north, and the Peers ' Lobby and Lords Chamber to the south. Another mural - lined corridor leads east to the Lower Waiting Hall and the staircase to the first floor, where the river front is occupied by a row of 16 committee rooms. Directly below them, the libraries of the two Houses overlook the Thames from the principal floor. Norman Porch The grandest entrance to the Palace of Westminster is the Sovereign 's Entrance beneath the Victoria Tower. It was designed for the use of the monarch, who travels from Buckingham Palace by carriage every year for the State Opening of Parliament. The Imperial State Crown, which is worn by the sovereign for the ceremony, as well as the Cap of Maintenance and the Sword of State, which are symbols of royal authority and are borne before the monarch during the procession, also travel to the Palace by coach, accompanied by members of the Royal Household ; the regalia, as they are collectively known, arrive some time before the monarch and are exhibited in the Royal Gallery until they are needed. The Sovereign 's Entrance is also the formal entrance used by visiting dignitaries, as well as the starting point of public tours of the Palace. From there, the Royal Staircase leads up to the principal floor with a broad, unbroken flight of 26 steps made of grey granite. It is lined on state occasions by sword - wielding troopers of the two regiments of the Household Cavalry, the Life Guards and the Blues and Royals ; these are the only troops allowed to bear arms inside the Palace of Westminster, which officially remains a royal residence. The staircase is followed by the Norman Porch, a square landing distinguished by its central clustered column and the intricate ceiling it supports, which is made up of four groin vaults with lierne ribs and carved bosses. The Porch was named for its proposed decorative scheme, based on Norman history. In the event, neither the planned statues of Norman kings nor the frescoes were executed, and only the stained - glass window portraying Edward the Confessor hints at this theme. Queen Victoria is depicted twice in the room : as a young woman in the other stained - glass window, and near the end of her life, sitting on the throne of the House of Lords, in a copy of a 1900 painting by Jean - Joseph Benjamin - Constant which hangs on the eastern wall. The sixteen plinths intended for the statues now house busts of prime ministers who have sat in the House of Lords, such as the Earl Grey and the Marquess of Salisbury. A double door opposite the stairs leads to the Royal Gallery, and another to the right opens to the Robing Room. Queen 's Robing room The Sovereign prepares for the State Opening of Parliament in the Robing Room. Behind is the Chair of State. The Queen 's Robing Room lies at the southern end of the ceremonial axis of the Palace and occupies the centre of the building 's south front, overlooking the Victoria Tower Gardens. As its name indicates, it is where the Sovereign prepares for the State Opening of Parliament by donning official robes and wearing the Imperial State Crown. The focus of this richly decorated room is the Chair of State ; it sits on a dais of three steps, under a canopy adorned with the arms and floral emblems of England, Scotland and Ireland. A panel of purple velvet forms the backdrop to the chair, embroidered by the Royal School of Needlework with the royal arms, surrounded by stars and VR monograms. Edward Barry designed both the chair -- the cushion and back of which are also embroidered -- and the ornate marble fireplace across the room, which features gilded statuettes of Saint George and Saint Michael. The decorative theme of the room is the legend of King Arthur, considered by many Victorians the source of their nationhood. Five frescos painted by William Dyce between 1848 and 1864 cover the walls, depicting allegorical scenes from the legend. Each scene represents a chivalric virtue ; the largest, between the two doors, is entitled Admission of Sir Tristram to the Round Table and illustrates the virtue of Hospitality. Seven were originally commissioned but the remaining two paintings were not carried out due to the artist 's death, and on the wallpapered panels flanking the Chair of State hang oil portraits of Queen Victoria and Prince Albert by Franz Xaver Winterhalter. Other decorations in the room are also inspired by the Arthurian legend, namely a series of 18 bas - reliefs beneath the paintings, carved in oak by Henry Hugh Armstead, and the frieze running below the ceiling, which displays the attributed coats of arms of the Knights of the Round Table. The ceiling itself is decorated with heraldic badges, as is the border of the wooden floor -- which, as can be seen in the adjacent image, is left exposed by the carpeting. The Robing Room was also briefly used as the House of Lords ' meeting chamber while the House of Lords Chamber was occupied by the House of Commons, whose chamber had been destroyed by the Blitz in 1941. Royal Gallery Immediately north of the Robing Room is the Royal Gallery. At 33.5 by 13.7 metres ( 110 by 45 ft ), it is one of the largest rooms in the Palace. Its main purpose is to serve as the stage of the royal procession at State Openings of Parliament, which the audience watch from temporary tiered seating on both sides of the route. It has also been used on occasion by visiting statesmen from abroad when addressing both Houses of Parliament, as well as for receptions in honour of foreign dignitaries, and more regularly for the Lord Chancellor 's Breakfast ; in the past it was the theatre of several trials of peers by the House of Lords. Documents from the Parliamentary Archives are on display in the Royal Gallery ( including a facsimile of Charles I 's death warrant ), and the tables and seating offer a workspace for members of the Lords that is conveniently close to their debating chamber. Following the rapid decay of Maclise 's first two frescoes, the rest of the Royal Gallery 's walls were left unpainted. The decorative scheme of the Royal Gallery was meant to display important moments in British military history, and the walls are decorated by two large paintings by Daniel Maclise, each measuring 13.7 by 3.7 metres ( 45 by 12 ft ) : The Death of Nelson ( depicting Lord Nelson 's demise at the Battle of Trafalgar in 1805 ) and The Meeting of Wellington and Blücher ( showing the Duke of Wellington meeting Gebhard Leberecht von Blücher at the Battle of Waterloo in 1815 ). The murals deteriorated rapidly after their completion due to a range of factors, most importantly atmospheric pollution, and today they are almost monochrome. The rest of the planned frescos were cancelled, and the walls are filled with portraits of kings and queens from George I onwards. Another decorative element with military undertones are the eight statues of gilded Caen stone that flank the three doorways and the bay window of the Gallery, sculpted by John Birnie Philip. Each depicts a monarch during whose reign a key battle or war took place. They are : Alfred the Great and William the Conqueror ; Richard I and Edward III ; Henry V and Elizabeth I ; William III and Anne. The panelled ceiling, 13.7 metres ( 45 ft ) above the floor, features Tudor roses and lions, and the stained - glass windows show the coats of arms of the Kings of England and Scotland. Prince 's Chamber The Prince 's Chamber is a small anteroom between the Royal Gallery and the Lords Chamber, named after the room adjoining the Parliament Chamber in the Old Palace of Westminster. Thanks to its location, it is a place where members of the Lords meet to discuss business of the House. Several doors lead out of the room, to the division lobbies of the House of Lords and to a number of important offices. The theme of the Prince 's Chamber is Tudor history, and 28 oil portraits painted on panels around the room depict members of the Tudor dynasty. They are the work of Richard Burchett and his pupils, and their creation entailed extensive research, which contributed to the founding of the National Portrait Gallery in 1856. 12 bronze bas - reliefs are set into the wall below the portraits, executed by William Theed in 1855 -- 57. Scenes included are The Field of the Cloth of Gold, The Escape of Mary, Queen of Scots and Raleigh Spreading His Cloak As a Carpet for the Queen. Above the portraits, at window level, there are compartments intended for copies of six of the ten Armada tapestries, which hung in the chamber of the House of Lords until their destruction in the 1834 fire and depicted the defeat of the Spanish Armada in 1588. The project was put on hold in 1861 ( by which time only one painting had been completed ), and was not revived until 2007 ; as of August 2010, all six paintings have been finished and are on display in the Royal Gallery. They are scheduled to be fixed in the Prince 's Chamber in the following months. The room also contains a statue of Queen Victoria, seated on a throne ( itself placed on a pedestal ) and holding a sceptre and a laurel crown, which show that she both governs and rules. This figure is flanked by allegorical statues of Justice and Clemency -- the former with a bare sword and an inflexible expression and the latter showing sympathy and offering an olive branch. The sculptural ensemble, made of white marble and carved by John Gibson in 1855, reaches 2.44 metres ( 8 ft ) in height ; its size has long been considered out of proportion with the fittings of the Prince 's Chamber, and the flanking statues ended up in storage between 1955 and 1976. However, the size and location of the group, in the archway opposite the doors to the Royal Gallery ( which are removed before State Openings of Parliament to facilitate the royal procession ), indicate that it was meant to be seen from a distance, and to symbolically remind the monarch of their royal duties as they would walk down the Royal Gallery on their way to deliver their speech. Lords Chamber The Sovereign 's Throne and its gilded Canopy dominate the ornate Lords Chamber. The Chamber of the House of Lords is located in the southern part of the Palace of Westminster. The lavishly decorated room measures 13.7 by 24.4 metres ( 45 by 80 ft ). The benches in the Chamber, as well as other furnishings in the Lords ' side of the Palace, are coloured red. The upper part of the Chamber is decorated by stained glass windows and by six allegorical frescoes representing religion, chivalry and law. At the south end of the Chamber are the ornate gold Canopy and Throne ; although the Sovereign may theoretically occupy the Throne during any sitting, he or she attends only the State Opening of Parliament. Other members of the Royal Family who attend the State Opening use Chairs of State next to the Throne, and peers ' sons are always entitled to sit on the steps of the Throne. In front of the Throne is the Woolsack, an armless red cushion stuffed with wool, representing the historical importance of the wool trade, and used by the officer presiding over the House ( the Lord Speaker since 2006, but historically the Lord Chancellor or a deputy ). The House 's mace, which represents royal authority, is placed on the back of the Woolsack. In front of the Woolsack is the Judges ' Woolsack, a larger red cushion that used to be occupied during the State Opening by the Law Lords ( who were members of the House of Lords ), and prospectively by the Supreme Court Justices and other Judges ( whether or not members ), to represent the Judicial Branch of Government. The Table of the House, at which the clerks sit, is in front. Members of the House occupy red benches on three sides of the Chamber. The benches on the Lord Speaker 's right form the Spiritual Side and those to his left form the Temporal Side. The Lords Spiritual ( archbishops and bishops of the established Church of England ) all occupy the Spiritual Side. The Lords Temporal ( nobles ) sit according to party affiliation : members of the Government party sit on the Spiritual Side, while those of the Opposition sit on the Temporal Side. Some peers, who have no party affiliation, sit on the benches in the middle of the House opposite the Woolsack ; they are accordingly known as crossbenchers. The passage of the Parliament Act 1911. Votes in both Houses of Parliament are conducted in the form of divisions. The Lords Chamber is the site of nationally televised ceremonies, the most important of which is the State Opening of Parliament, which is held formally to open each annual parliamentary session, either after a General Election or in the autumn. At this occasion every constitutional element of the government is represented : the Crown ( both literally, and figuratively in the person of the Sovereign ), The Lords Spiritual and Temporal, and The Commons, ( who together form the Legislature ), the Judiciary ( although no judges are members of either House of Parliament ), and the Executive ( both Government Ministers, and ceremonial military units in attendance on the Sovereign ) ; and a large number of guests are invited to attend in the large Royal Gallery immediately outside the Chamber. The Sovereign, seated on the Throne, delivers the Speech from the Throne, outlining the Government 's programme for the year and legislative agenda for the forthcoming parliamentary session. The Commons may not enter the Lords ' debating floor ; instead, they watch the proceedings from beyond the Bar of the House, just inside the door. A small purely formal ceremony is held to end each parliamentary session, when the Sovereign is merely represented by a group of Lords Commissioners. Following the Blitz, which destroyed the chamber of the House of Commons, the Lord 's chamber was occupied by the Commons. The Lords temporarily used the Robing Room during the reconstruction. The State Opening Of Parliament was carried out as normal, with the new rooms being used. Evidence can still be seen of this today, with damage clearly visible on one of the doors where they were struck by Black Rod. Peers ' Lobby Directly north of the Lords Chamber lies the Peers ' Lobby, an antechamber where Lords can informally discuss or negotiate matters during sittings of the House, as well as collect messages from the doorkeepers, who control access to the Chamber. The Lobby is a square room measuring 12 metres ( 39 ft ) on each side and 10 metres ( 33 ft ) in height, and one of its main features is the floor centrepiece, a radiant Tudor rose made of Derbyshire marbles and set within an octagon of engraved brass plates. The rest of the floor is paved with encaustic tiles featuring heraldic designs and Latin mottoes. The walls are faced with white stone and each is pierced by a doorway ; above the arches are displayed arms representing the six royal dynasties which ruled England until Queen Victoria 's reign ( Saxon, Norman, Plantagenet, Tudor, Stuart and Hanoverian ), and between them there are windows stained with the arms of the early aristocratic families of England. Of the doorways, the one to the south -- which leads into the Lords Chamber -- is the most magnificent, and sports much gilding and decoration, including the full royal arms. It is enclosed by the Brass Gates, a pair of elaborately pierced and studded doors together weighing 1.5 tonnes. The side doors, which feature clocks, open into corridors : to the east extends the Law Lords Corridor, which leads to the libraries, and nearby to the west lies the Moses Room, used for Grand Committees. To the north is the vaulted Peers ' Corridor, which is decorated with eight murals by Charles West Cope depicting historical scenes from the period around the English Civil War. The frescoes were executed between 1856 and 1866, and each scene was `` specifically chosen to depict the struggles through which national liberties were won ''. Examples include Speaker Lenthall Asserting the Privileges of the Commons Against Charles I when the Attempt was Made to Seize the Five Members, representing resistance against absolute rule, and The Embarkation of the Pilgrim Fathers for New England, which illustrates the principle of freedom of worship. Central Lobby Saint George for England by Sir Edward Poynter and Saint Patrick for Ireland by Robert Anning Bell are two of the four mosaics decorating the Central Lobby. Originally named `` Octagon Hall '' because of its shape, the Central Lobby is the heart of the Palace of Westminster. It lies directly below the Central Tower and forms a busy crossroads between the House of Lords to the south, the House of Commons to the north, St Stephen 's Hall and the public entrance to the west, and the Lower Waiting Hall and the libraries to the east. Its location halfway between the two debating chambers has led constitutional theorist Erskine May to describe the Lobby as `` the political centre of the British Empire '', and allows a person standing under the great chandelier to see both the Royal Throne and the Speaker 's Chair, provided that all the intervening doors are open. Constituents may meet their Members of Parliament here, even without an appointment, and this practice is one of the possible origins of the term lobbying. The hall is also the theatre of the Speaker 's Procession, which passes from here on its way to the Commons Chamber before every sitting of the House. The Central Lobby measures 18 metres ( 59 ft ) across and 23 metres ( 75 ft ) from the floor to the centre of the vaulted ceiling. The panels between the vault 's ribs are covered with Venetian glass mosaic displaying floral emblems and heraldic badges, and the bosses in the intersections of the ribs are also carved into heraldic symbols. Each wall of the Lobby is contained in an arch ornamented with statues of English and Scottish monarchs ; on four sides there are doorways, and the tympana above them are adorned with mosaics representing the patron saints of the United Kingdom 's constituent nations : Saint George for England, Saint Andrew for Scotland, Saint David for Wales and Saint Patrick for Ireland. The other four arches are occupied by high windows, under which there are stone screens -- the hall 's post office, one of two in the Palace, is located behind one of these screens. In front of them stand four bigger - than - life statues of 19th - century statesmen, including one of four - time Prime Minister William Ewart Gladstone. The floor on which they stand is tiled with Minton encaustic tiles in intricate patterns and includes a passage from Psalm 127 written in Latin, which translates as follows : `` Except the Lord build the House their labour is but lost that build it ''. The East Corridor leads from the Central Lobby to the Lower Waiting Hall, and its six panels remained blank until 1910, when they were filled with scenes from Tudor history. They were all paid for by Liberal peers and each was the work of a different artist, but uniformity was achieved between the frescoes thanks to a common colour palette of red, black and gold and a uniform height for the depicted characters. One of the scenes is probably not historical : Plucking the Red and White Roses in the Old Temple Gardens, depicting the origin of these flowers as emblems of the Houses of Lancaster and York respectively, was taken from Shakespeare 's play Henry VI, Part 1. Members ' Lobby Main article : Members ' Lobby US President Barack Obama ( right ) in the Members ' Lobby during a tour of the Palace in May 2011. With him are, from the left : the Lord Great Chamberlain, the Marquess of Cholmondeley, holding his white staff of office ; the Lord Speaker, Baroness Hayman ; and the Speaker of the House of Commons, John Bercow. Continuing north from the Central Lobby is the Commons ' Corridor. It is of almost identical design to its southern counterpart and is decorated with scenes of 17th - century political history between the Civil War and the Revolution of 1688. They were painted by Edward Matthew Ward and include subjects like Monk Declaring for a Free Parliament and The Lords and Commons Presenting the Crown to William III and Mary II in the Banqueting Hall. Then, mirroring the arrangement at the Lords part of the Palace, is another antechamber, the Members ' Lobby. In this room, Members of Parliament hold discussions or negotiations, and are often interviewed by accredited journalists, collectively known as `` The Lobby ''. The room is similar to the Peers ' Lobby but plainer in design and slightly larger, forming a cube 13.7 metres ( 45 ft ) on all sides. After the heavy damage it sustained in the 1941 bombing, it was rebuilt in a simplified style, something most evident in the floor, which is almost completely unadorned. The archway of the door leading into the Commons Chamber has been left unrepaired as a reminder of the evils of war, and is now known as the Rubble Arch or Churchill Arch. It is flanked by bronze statues of Winston Churchill and David Lloyd George, the prime ministers who led Britain through the Second and First World War respectively ; a foot of each is conspicuously shiny, a result of a long tradition of MPs rubbing them for good luck on their way in before their maiden speech. The Lobby contains the busts and statues of most 20th - century prime ministers, as well as two large boards where MPs can receive letters and telephone messages, designed for the use of the House and installed in the early 1960s. Commons Chamber Like its predecessor, the post-war chamber of the House of Commons can seat on its green benches only about two - thirds of all Members of Parliament. The Chamber of the House of Commons is at the northern end of the Palace of Westminster ; it was opened in 1950 after the Victorian chamber had been destroyed in 1941 and re-built under the architect Giles Gilbert Scott. The Chamber measures 14 by 20.7 metres ( 46 by 68 ft ) and is plainer in style than the Lords Chamber ; the benches, as well as other furnishings in the Commons side of the Palace, are coloured green. Members of the public are forbidden to sit on the benches. Other parliaments in Commonwealth nations, including those of India, Canada, Australia and New Zealand, have copied the colour scheme under which the Lower House is associated with green, and the Upper House with red. Left to right : U.S. Secretary of State John Kerry, House of Commons Speaker John Bercow and U.K. Foreign Secretary William Hague examine the dispatch boxes on 25 February 2013 At the north end of the Chamber is the Speaker 's Chair, a present to Parliament from the Commonwealth of Australia. The current British Speaker 's Chair is an exact copy of the Speaker 's Chair given to Australia, by the House of Commons, to celebrate the opening of Old Parliament House, Canberra. In front of the Speaker 's Chair is the Table of the House, at which the clerks sit, and on which is placed the Commons ' ceremonial mace. The Table was a gift from Canada. The dispatch boxes, which front - bench Members of Parliament ( MPs ) often lean on or rest notes on during Questions and speeches, are a gift from New Zealand. There are green benches on either side of the House ; members of the Government party occupy benches on the Speaker 's right, while those of the Opposition occupy benches on the Speaker 's left. There are no cross-benches as in the House of Lords. The Chamber is relatively small, and can accommodate only 427 of the 650 Members of Parliament -- during Prime Minister 's Questions and in major debates MPs stand at either end of the House. By tradition, the British Sovereign does not enter the Chamber of the House of Commons. The last monarch to do so was King Charles I, in 1642. The King sought to arrest five Members of Parliament on charges of high treason, but when he asked the Speaker, William Lenthall, if he had any knowledge of the whereabouts of these individuals, Lenthall famously replied : `` May it please your Majesty, I have neither eyes to see nor tongue to speak in this place but as the House is pleased to direct me, whose servant I am here. '' Since then, in the State Opening of Parliament, when Black Rod representing the monarch approaches the doors to the chamber of the House of Commons to make the summons, they are pointedly slammed in his or her face. Black Rod has to strike the door three times with a staff, to be admitted and issue the summons from the monarch to the MPs to attend. When repairs after the World War II bombing were completed, the rebuilt chamber was opened by King George VI on 26 October 1950 who was invited to an `` unofficial '' tour of the new structure by Commons leaders. The two red lines on the floor of the House of Commons are 2.5 metres ( 8 ft 2 in ) apart, which, by apocryphal tradition, is intended to be just over two sword - lengths. It is said that the original purpose of this was to prevent disputes in the House from devolving into duels. However, there is no record of a time when Members of Parliament were allowed to bring swords into the Chamber ; historically, only the Serjeant at Arms has been allowed to carry a sword, as a symbol of their role in Parliament, and there are loops of pink ribbon in the Members ' cloakroom for MPs to hang up their swords before entering the Chamber. In the days when gentlemen carried swords, there were no lines in the Chamber. Protocol dictates that MPs may not cross these lines when speaking ; a Member of Parliament who violates this convention will be lambasted by opposition Members. Westminster Hall Westminster Hall in the early 19th century Westminster Hall, the oldest existing part of the Palace of Westminster, was erected in 1097, at which point it was the largest hall in Europe. The roof was probably originally supported by pillars, giving three aisles, but during the reign of King Richard II, this was replaced by a hammerbeam roof by the royal carpenter Hugh Herland, `` the greatest creation of medieval timber architecture '', which allowed the original three aisles to be replaced with a single huge open space, with a dais at the end. The new roof was commissioned in 1393. Richard 's architect Henry Yevele left the original dimensions, refacing the walls, with fifteen life - size statues of kings placed in niches. The rebuilding had been begun by King Henry III in 1245, but had by Richard 's time been dormant for over a century. In Westminster Hall, the favourite heraldic badge of Richard II, a white hart, chained, and in an attitude of rest, is repeated as many as eighty - three times, without any of them being an exact counterpart of another. Westminster Hall has the largest clearspan medieval roof in England, measuring 20.7 by 73.2 metres ( 68 by 240 ft ). Oak timbers for the roof came from royal woods in Hampshire and from parks in Hertfordshire and from that of William Crozier of Stoke D'Abernon, who supplied over 600 oaks in Surrey, among other sources ; they were assembled near Farnham, Surrey, 56 kilometres ( 35 mi ) away. Accounts record the large number of wagons and barges which delivered the jointed timbers to Westminster for assembly. Westminster Hall has served numerous functions. Until the 19th century, it was primarily used for judicial purposes, housing three of the most important courts in the land : the Court of King 's Bench, the Court of Common Pleas and the Court of Chancery. In 1875, these courts were amalgamated into the High Court of Justice, which continued to meet in Westminster Hall until it moved to the Royal Courts of Justice in 1882. In addition to regular courts, Westminster Hall also housed important trials, including impeachment trials and the state trials of King Charles I at the end of the English Civil War, William Wallace, Thomas More, Cardinal John Fisher, Guy Fawkes, the Earl of Strafford, the rebel Scottish lords of the 1715 and 1745 uprisings, and Warren Hastings. The St Stephen 's Porch end of the Hall displays under the stained glass window the Parliamentary War Memorial listing on eight panels the names of Members and staff of both Houses of Parliament and their sons killed serving in the First World War ; the window itself, installed in 1952, commemorates members and staff of both Houses who died in the Second World War. In 2012, a new stained glass window commemorating Elizabeth II 's diamond jubilee was installed opposite this window, at the other end of the hall. George IV 's coronation banquet was held in Westminster Hall in 1821. Westminster Hall has also served ceremonial functions. From the twelfth century to the nineteenth, coronation banquets honouring new monarchs were held here. The last coronation banquet was that of King George IV, held in 1821 ; his successor, William IV, abandoned the idea because he deemed it too expensive. The Hall has been used for lyings - in - state during state and ceremonial funerals. Such an honour is usually reserved for the Sovereign and for their consorts ; the only non-royals to receive it in the twentieth century were Frederick Sleigh Roberts, 1st Earl Roberts ( 1914 ) and Winston Churchill ( 1965 ). The most recent lying - in - state was that of Queen Elizabeth The Queen Mother in 2002. The two Houses have presented ceremonial Addresses to the Crown in Westminster Hall on important public occasions. For example, Addresses were presented at Elizabeth II 's Silver Jubilee ( 1977 ), Golden Jubilee ( 2002 ) and Diamond Jubilee ( 2012 ), the 300th anniversary of the Glorious Revolution ( 1988 ), and the fiftieth anniversary of the end of the Second World War ( 1995 ). It is considered a rare privilege for a foreign leader to be allowed to address both houses in Westminster Hall. Since the Second World War the only leaders to have done so have been French president Charles de Gaulle in 1960, South African president Nelson Mandela in 1996, Pope Benedict XVI in 2010, U.S. president Barack Obama in 2011 and Burmese opposition leader Aung San Suu Kyi in 2012. President Obama was the first ever US President to be allowed to use the Hall for an address to Parliament and Aung San Suu Kyi was the first non-head of state to be given the accolade of addressing MPs and peers in Westminster Hall. Under reforms made in 1999, the House of Commons uses the Grand Committee Room next to Westminster Hall as an additional debating chamber. ( Although it is not part of the main hall, the room is usually spoken of as such. ) The seating is laid out in a U-shape, in contrast with the main Chamber, in which the benches are placed opposite each other. This pattern is meant to reflect the non-partisan nature of the debates held in Westminster Hall. Other rooms Main articles : House of Lords Library and House of Commons Library There are two suites of libraries on the Principal Floor, overlooking the river, for the House of Lords Library and House of Commons Library. The Palace of Westminster also includes state apartments for the presiding officers of the two Houses. The official residence of the Speaker stands at the northern end of the Palace ; the Lord Chancellor 's apartments are at the southern end. Each day, the Speaker and Lord Speaker take part in formal processions from their apartments to their respective Chambers. The Strangers ' Bar is one of the numerous bars, cafeterias and restaurants in the Palace of Westminster, with differing rules regarding who is allowed to use their facilities ; many of them never close while the House is sitting. There is also a gymnasium, and even a hair salon ; and a rifle range. Parliament also has two souvenir shops, where items on sale range from House of Commons key - rings and china to House of Commons Champagne. Security Concrete barriers restrict access to Old Palace Yard. The Gentleman Usher of the Black Rod oversees security for the House of Lords, and the Serjeant at Arms does the same for the House of Commons. These officers, however, have primarily ceremonial roles outside the actual chambers of their respective Houses. Security is the responsibility of the Parliamentary Security Director. Parliament has its own professional Security force. Tradition still dictates that only the Serjeant at Arms may enter the Commons chamber armed. With rising concern about the possibility that a vehicle full of explosives could be driven into the building, a series of concrete blocks was placed in the roadway in 2003. On the river, an exclusion zone extending 70 metres ( 77 yd ) from the bank exists, which no vessels are allowed to enter. The Serious Organised Crime and Police Act 2005 made it illegal to hold a protest near the Palace, or anywhere else within a designated area extending up to 1 kilometre ( 0.6 mi ) from Parliament Square, without authorisation from the Metropolitan Police. The Act also restricted the operation of loudspeakers in the designated area. These provisions were repealed by the Police Reform and Social Responsibility Act 2011, which replaced them with a total ban on tents and sleeping bags in Parliament Square, as well as a prohibition on the use of loudspeakers in the Square without permission from the relevant local authority. Members of the public continue to have access to the Strangers ' Gallery in the House of Commons. Visitors pass through metal detectors and their possessions are scanned. Police from the Palace of Westminster Division of the Metropolitan Police, supported by some armed police from the Diplomatic Protection Group, are always on duty in and around the Palace. Incidents The failed Gunpowder Plot of 1605 was a conspiracy among a group of Roman Catholic gentry to re-establish Catholicism in England by assassinating the Protestant King James I and replacing him with a Catholic monarch. To this end, they placed large quantities of gunpowder beneath the House of Lords, which one of the conspirators, Guy Fawkes, would detonate during the State Opening of Parliament on 5 November 1605. If successful, the explosion would have destroyed the Palace, killing the King, his family and most of the aristocracy. However, the plot was discovered and most of the conspirators were either arrested or killed while trying to evade capture. The survivors were tortured in the Tower of London, tried for high treason in Westminster Hall, convicted and gruesomely executed by hanging, drawing and quartering. Since then, the cellars of the Palace have been searched by the Yeomen of the Guard before every State Opening of Parliament, a traditional precaution against any similar attempts against the Sovereign. Sir Walter Raleigh was executed at the Palace of Westminster on 29 October 1618. The assassination of Prime Minister Spencer Perceval in 1812 in the lobby of the House of Commons The previous Palace of Westminster was also the site of a prime - ministerial assassination on 11 May 1812. While in the lobby of the House of Commons, on his way to a parliamentary inquiry, Spencer Perceval was shot and killed by a Liverpool merchant adventurer, John Bellingham. Perceval remains the only British Prime Minister to have been assassinated. The New Palace became the target of Fenian bombs on 24 January 1885, along with the Tower of London. The first bomb, a black bag containing dynamite, was discovered by a visitor on the steps towards the Chapel of St Mary Undercroft. Police Constable ( PC ) William Cole attempted to carry it to New Palace Yard, but the bag became so hot that Cole dropped it and it exploded. The blast opened a crater in the floor 1 metre ( 3 ft ) in diameter, damaged the roof of the Chapel and shattered all the windows in the Hall, including the stained - glass South Window at St Stephen 's Porch. Both Cole and PC Cox, a colleague who had joined him to offer assistance, were seriously injured. A second explosion followed almost immediately in the Commons Chamber, causing great damage -- especially to its south end -- but no injuries, as it was empty at the time. The incident resulted in the closure of Westminster Hall to visitors for several years ; when visitors were re-admitted in 1889, it was under certain restrictions and never while the two Houses were sitting. On 17 June 1974, a 9 - kilogram ( 20 lb ) bomb planted by the Provisional IRA exploded in Westminster Hall. The explosion and the resulting fire, which was fed by a ruptured gas main, injured 11 people and caused extensive damage. Five years later, a car bomb claimed the life of Airey Neave, a prominent Conservative politician, while he was driving out of the Commons car park in New Palace Yard. The attack occurred on 30 March 1979, one day after the announcement of that year 's general election ; both the Irish National Liberation Army and the Provisional IRA claimed responsibility for Neave 's assassination, but it is now accepted that the former were responsible. The Palace has also been the scene of numerous acts of politically motivated `` direct action '', which often took place in the Chamber of the House of Commons. In July 1970, a man in the Strangers ' Gallery threw two canisters of tear gas into the Chamber to protest against the use of such gas in Northern Ireland ; a MP and two members of the House 's staff were taken to hospital and the sitting was suspended for almost two hours. In 1978, activist Yana Mintoff and another dissident threw bags of horse manure, and in June 1996 demonstrators dropped leaflets. Concern about such attacks and a possible chemical or biological attack led to the installation of a glass screen across the Strangers ' Gallery in early 2004. The new barrier does not cover the gallery in front of the Strangers ' Gallery, which is reserved for ambassadors, members of the House of Lords, guests of MPs and other dignitaries, and in May 2004 protesters from Fathers 4 Justice attacked Prime Minister Tony Blair with flour bombs from this part, after obtaining admission by bidding for a place in the visitors ' gallery in a charity auction. Subsequently, rules on admission to the visitors ' galleries were changed, and now individuals wishing to sit in the galleries must first obtain a written pass from a Member certifying that that individual is personally known to them. In September of the same year, five protesters opposed to the proposed ban on fox hunting disrupted the proceedings of the House of Commons by running into the Chamber, the first such occurrence since King Charles I 's unauthorised entry in 1642, which triggered the English Civil War. The House of Lords has also been targeted by protesters. On 2 February 1988, the House debated the Local Government Bill 's controversial Clause 28, a measure to prohibit the promotion of homosexuality in schools. Following the division, in which the clause passed, a number of lesbian demonstrators in the public gallery started chanting slogans, and three of them tied ropes to the railing and climbed down onto the floor of the Chamber. Lord Monkswell, who had provided the women with passes to attend the debate, later apologised to the House for the incident but did not criticise the protest. Plane Stupid activists on the roof of the Palace of Westminster Similar actions have been carried out outside the Palace of Westminster. Early in the morning of 20 March 2004, two Greenpeace members scaled the Clock Tower to demonstrate against the Iraq War, raising questions about the security around such a likely target of terrorist attacks. In March 2007, another four members of Greenpeace made their way to the Palace 's roof by means of a nearby crane, which was being used for repairs to Westminster Bridge. Once up, they unfurled a 15 - metre ( 50 ft ) banner protesting against the British government 's plans to update the Trident nuclear programme. In February 2008, five campaigners from the Plane Stupid group gained admittance to the building as visitors and then moved up to the roof to demonstrate against the proposed expansion of Heathrow Airport ; from there they hung two banners they had smuggled past security. MPs and security experts found it worrying that the protesters made it to the roof in spite of the heightened security measures, and the prosecution at the activists ' trial argued that they may have received help from a House of Lords employee. In October 2009, at least forty Greenpeace activists climbed to the roof of Westminster Hall to call for the adoption of policies combating climate change. Some of them climbed down after nearly five hours, while the rest spent the night on the roof. On 22 March 2017, an Islamist - related terror attack happened in which a man stabbed a police officer after ploughing into pedestrians on Westminster Bridge. Five people were killed, including the attacker and the police officer. Rules and traditions The Palace has accumulated many rules and traditions over the centuries. Eating, drinking and Smoking Smoking has not been allowed in the chamber of the House of Commons since the 17th century. As a result, Members may take snuff instead and the doorkeepers still keep a snuff - box for this purpose. Despite persistent media rumours, it has not been permitted to smoke anywhere inside the Palace since 2005. Members may not eat or drink in the chamber ; the exception to this rule is the Chancellor of the Exchequer, who may have an alcoholic beverage while delivering the Budget statement. Dress code The introduction of a new Member of Parliament, 1858. Wearing hats in the House of Commons has not always been treated in the same way. Men are expected to wear a shirt and tie, women are expected to dress in business - like clothing and the wearing of T - shirts with slogans is not allowed. Hats must not be worn ( although they used to be worn when a point of order was being raised ), and Members may not wear military decorations or insignia. Members are not allowed to have their hands in their pockets -- Andrew Robathan was heckled by opposing MPs for doing this on 19 December 1994. Other traditions Other than people, the only animals allowed in the Palace of Westminster are guide dogs. Sniffer dogs and police horses are also allowed on the grounds. Speeches may not be read out during debate in the House of Commons, although notes may be referred to. Similarly, the reading of newspapers is not allowed. Visual aids are discouraged in the chamber. Applause is also not normally allowed in the Commons. Some notable exceptions to this were : when Robin Cook gave his resignation speech in 2003 ; when Prime Minister Tony Blair appeared for the last time at Prime Minister 's Questions ; when Speaker Michael Martin gave his leaving speech on 17 June 2009 and after the resignation statement of Robert Rogers, Clerk of the House. At the start of the new parliament in May 2015, the large influx of new Scottish National Party MPs flouted the convention and repeatedly applauded their party leader, to the displeasure of the Speaker. The status of the Palace as a royal palace raises legal questions -- according to Halsbury 's Laws of England, it is not possible to arrest a person within the `` verges '' of the Palace ( the Palace itself and its immediate surroundings ). However, according to a memorandum by the Clerk of the House of Commons, there is no prohibition on arrest within the Palace and such arrests have been effected in the past. Culture and tourism Claude Monet 's Houses of Parliament series The Houses of Parliament, sunset ( 1903 ), National Gallery of Art, Washington, D.C. London, Houses of Parliament. The Sun Shining through the Fog ( 1904 ), Musée d'Orsay, Paris During three trips to London between 1899 and 1901, Impressionist painter Claude Monet worked on a series of canvasses that depicted the Palace of Westminster under various lighting conditions ; the building was often shrouded in the smog prevalent in the city in Victorian times. The paintings share the same vantage point -- a terrace at St Thomas 's Hospital, across the river from the Palace -- and many of the works were finished in Monet 's studio in France over the following years. The exterior of the Palace of Westminster -- especially the Elizabeth Tower which houses the bell known as Big Ben, and its setting on the bank of the River Thames -- is recognised worldwide, and is one of the most visited tourist attractions in London. The United Nations Educational, Scientific and Cultural Organization ( UNESCO ) classifies the Palace of Westminster, along with neighbouring Westminster Abbey and St Margaret 's, as a World Heritage Site. It is also a Grade I listed building. Although there is no casual access to the interior of the Palace, there are several ways to gain admittance. UK residents may obtain tickets from an MP for a place in the viewing ( `` strangers '' ) gallery of the House of Commons, or from a Lord for a seat in the gallery of the House of Lords. It is also possible for both UK residents and overseas visitors to queue for admission to them at any time of the day or night when either House is in session, but capacity is limited and there is no guarantee of admission. Either House may exclude `` strangers '' if it desires to sit in private. Members of the public can also queue for a seat in a committee session, where admission is free and places can not be booked, or they may visit the Parliamentary Archives for research purposes. Booking an appointment is necessary in the latter case, along with a proof of identity. External video Charles Barry and A.W.N. Pugin, Palace of Westminster ( Houses of Parliament ), 1840 -- 70, Smarthistory, 6 : 27 Free guided tours of the Palace are held throughout the parliamentary session for UK residents, who can apply through their MP or a member of the House of Lords. The tours last about 75 minutes and include the state rooms, the chambers of the two Houses and Westminster Hall. Paid - for tours are available to both UK and overseas visitors during the summer recess. UK residents may also tour the Elizabeth Tower, by applying through their local Member of Parliament ; overseas visitors and small children are not allowed. Architectural historian Dan Cruickshank selected the Palace as one of his five choices for the 2006 BBC television documentary series Britain 's Best Buildings. The nearest London Underground station is Westminster, on the District, Circle and Jubilee lines. In 2015, Parliament organised a year - long programme of events called `` Parliament in the Making '' to celebrate the 800th anniversary of the sealing of Magna Carta on 15 June, and the 750th anniversary of the first representative parliament on 20 January. Events were coordinated with Parliament Week. The BBC held events throughout the year including a `` Democracy Day '' on 20 January consisting of live discussions and debate in partnership with the Speaker 's Office of the House of Commons, including broadcasts from inside the Palace of Westminster. See also Parliament of the United Kingdom relocation Notes Jump up ^ Depicted ( clockwise ) are the virtues of Courtesy, Religion, Generosity, Hospitality and Mercy. The two missing frescoes were meant to depict Fidelity and Courage. Queen Victoria 's portrait can be seen in the Parliamentary website. Jump up ^ The United Kingdom of Great Britain and Ireland included all of Ireland until the Irish Free State 's creation in 1922. Decorative references to Ireland exist throughout the Palace of Westminster and include symbols like the Irish harp and the shamrock. The saints ' mosaics were planned from 1847, but Robert Anning Bell 's design for Ireland was completed in 1924 and reflects the 1920 -- 22 partition, with Saint Patrick flanked by Saint Columba over the arms of Ulster for Northern Ireland, and Saint Brigid over the arms of Ireland for the Free State. Jump up ^ The Member for the Isle of Wight, Barry Field, subsequently commented that he was `` showered by national lottery tickets '' and asked the Speaker `` whether they came from that long lottery finger in the advertisement that points down to people and says, ' It could be you ' ``. Jump up ^ Sources differ on the exact number of demonstrators. A House of Commons spokeswoman stated that 45 people climbed to the roof, and a Metropolitan Police spokeswoman said that 20 climbed down on the first day, but 31 activists stayed there overnight according to Greenpeace, and the BBC later reported that 54 people were charged with `` trespassing on land designated a protected site ''. References Footnotes ^ Jump up to : `` Palace of Westminster : Factsheet '' ( PDF ). Restoration and Renewal. Houses of Parliament. Retrieved 13 September 2017. Jump up ^ Historic England. `` Details from listed building database ( 1226284 ) ''. National Heritage List for England. Retrieved 9 July 2015. Jump up ^ The bird 's - eye view by H.J. Brewer was published in The Builder in 1884, according to www.parliament.uk. Jump up ^ Drawn by J. Shury & Son, Printed by Day & Haghe Jump up ^ Cooper, James Fenimore. Gleanings in Europe : England, Plate III following p. 68 ( SUNY Press 1982 ). ^ Jump up to : `` A Brief Chronology of the House of Commons '' ( PDF ). House of Commons Information Office. April 2009. Archived from the original ( PDF ) on 11 May 2015. Retrieved 5 August 2010. Jump up ^ `` All Change at the Palace of Westminster '', BBC History Jump up ^ Fraser, Antonia ( 1992 ). The Wives of Henry VIII. New York : Alfred A Knopf. ISBN 978 - 0394585383. Jump up ^ `` Architecture of the Palace : The Great Fire of 1834 ''. UK Parliament. Retrieved 5 August 2010. Jump up ^ Jones ( 1983 ), p. 77 ; Riding and Riding ( 2000 ), p. 100 ; Port ( 1976 ), p. 20. Jump up ^ Riding and Riding ( 2000 ), pp. 108, 111. Jump up ^ Jones ( 1983 ), pp. 77 -- 78 ; Port ( 1976 ), p. 20. Jump up ^ `` KING 'S SPEECH ''. Parliamentary Debates ( Hansard ). House of Lords. 24 February 1835. col. 63 -- 64. Jump up ^ `` NEW HOUSES OF PARLIAMENT ''. Parliamentary Debates ( Hansard ). House of Commons. 2 March 1835. col. 469 -- 471. Jump up ^ `` NEW HOUSES OF PARLIAMENT ''. Parliamentary Debates ( Hansard ). House of Lords. 3 March 1835. col. 489 -- 490. Jump up ^ `` House of Lords -- NEW HOUSES OF PARLIAMENT. ''. Hansard. 15 June 1835. Retrieved 18 April 2012. Jump up ^ `` House of Lords -- NEW HOUSES OF PARLIAMENT. ''. Hansard. 21 July 1836. Retrieved 18 April 2012. Jump up ^ `` Miscellany ''. The Morning Post ( 20154 ). 13 July 1835. Retrieved 20 April 2012. Jump up ^ `` The New Houses of Parliament ''. The Manchester Times and Gazette. 13 February 1836. Retrieved 20 April 2012. Jump up ^ `` Miscellaneous Notices respecting the Competition Designs for the New Houses of Parliament ''. Architectural Magazine. 3 : 104. 1836. Retrieved 10 September 2011. Jump up ^ Richard Taylor ( 19 January 2012 ). Pugin : God 's Own Architect. BBC Four. Jump up ^ Riding, Christine ( 7 February 2005 ). `` Westminster : A New Palace for a New Age ''. BBC. Retrieved 27 December 2009. Jump up ^ The complex history surrounding the decoration is best summarized by T.S.R. Boase, The Decorations of the New Palace of Westminster 1841 -- 1863, in : Journal of the Warburg and Courtauld Institutes 17 : 1954, pp. 319 -- 358. ^ Jump up to : `` Architecture of the Palace : Bomb damage ''. UK Parliament. Retrieved 5 August 2010. Jump up ^ `` Richard I statue : Second World War damage ''. UK Parliament. Retrieved 27 December 2009. Jump up ^ ( 1 ) Names on the Parliamentary War Memorial. ^ Jump up to : Fell and Mackenzie ( 1994 ), p. 27. Jump up ^ Field ( 2002 ), p. 259. Jump up ^ UK Parliament. `` Bombed House of Commons 1941 ''. Flickr. Retrieved 5 August 2010. Jump up ^ Tanfield ( 1991 ), p. 31. Jump up ^ Tanfield ( 1991 ), p. 41. Jump up ^ `` ' The House ' Returns, '' British Pathé newsreel 50 / 87, issue date 30 October 1950. Accessed 4 January 2014. Jump up ^ Fell and Mackenzie ( 1994 ), p. 42. Jump up ^ `` The Norman Shaw Buildings '' ( PDF ). House of Commons Information Office. April 2007. Retrieved 5 August 2010. Jump up ^ `` Parliamentlive.tv ''. Jump up ^ `` MPs set to move out of Parliament for six years while renovations take place ''. The Telegraph. Retrieved 2017 - 01 - 24. Jump up ^ Devey, Peter ( February 2001 ). `` Commons Sense ''. The Architectural Review. Archived from the original on 2012 - 07 - 08. Retrieved 3 December 2009. ^ Jump up to : UK Parliament website `` stonework '' page Archived 11 May 2015 at WebCite Accessed 4 January 2014. ^ Jump up to : `` The Palace of Westminster '' ( PDF ). House of Commons Information Office. May 2009. Retrieved 5 August 2010. Jump up ^ Richardson, Christine ( 2007 ). Yorkshire Stone to London : To Create the Houses of Parliament. Richlow Histories. ISBN 1 - 870002 - 95 - 4. Jump up ^ Appletons ' annual cyclopaedia and register of important events of the year : 1862. New York : D. Appleton & Company. 1863. p. 201. ^ Jump up to : `` Restoration of the Palace of Westminster : 1981 -- 94 '' ( PDF ). House of Commons Information Office. August 2003. Retrieved 5 August 2010. Jump up ^ `` HOUSE OF COMMONS COMMISSION -- Westminster Hall ''. Parliamentary Debates ( Hansard ). House of Commons. 15 October 2012. col. 1W. Jump up ^ `` House of Lords : Stonework ''. Parliamentary Debates ( Hansard ). House of Lords. 30 April 2012. col. 1927. Jump up ^ Quinault ( 1991 ), p. 81 ; Jones ( 1983 ), p. 113. Jump up ^ Port ( 1976 ), pp. 76, 109 ; Riding and Riding ( 2000 ), p. 116. Jump up ^ Quinault ( 1991 ), p. 81. Jump up ^ Fell and Mackenzie ( 1994 ), p. 30. Jump up ^ Fell and Mackenzie ( 1994 ), p. 44. Jump up ^ `` Early day motion 1199 : Union Flag at Parliament ''. UK Parliament. 29 March 2010. Retrieved 19 November 2016. Jump up ^ `` Building the Great Clock ''. UK Parliament. Retrieved 14 May 2010. Jump up ^ Macdonald ( 2004 ), pp. xiii -- xiv. 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Jump up ^ Cescinsky, Herbert ; Gribble, Ernest R. ( February 1922 ). `` Westminster Hall and Its Roof ''. The Burlington Magazine for Connoisseurs. 40 ( 227 ) : 76 -- 84. JSTOR 861585. ( subscription required ) Jump up ^ `` The hammer - beam roof ''. UK Parliament. Retrieved 28 May 2011. Jump up ^ Jonathan Alexander & Paul Binski ( eds ), Age of Chivalry, Art in Plantagenet England, 1200 -- 1400, pp. 506 -- 507, Royal Academy / Weidenfeld & Nicholson, London 1987. Only six of the statues, rather damaged, remain, and the dias has been remodelled, but otherwise the hall remains largely as Richard and his architect Henry Yevele left it. Jump up ^ Charles Boutell, The Handbook to English Heraldry 11th ed., rev. A.C. Fox - Davies ( London : Reeves & Turner, 1914 ), p. 28 Jump up ^ Gerhold ( 1999 ), pp. 19 -- 20. Jump up ^ Salzman, L.F. ( 1992 ) ( 1952 ). Building in England down to 1540 : A Documentary History. Oxford University Press, USA. ISBN 978 - 0198171584. OCLC 758400852. 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Jump up ^ `` The Gunpowder Plot '' ( PDF ). House of Commons Information Office. September 2006. Retrieved 5 August 2010. Jump up ^ `` Prime Ministers and Politics Timeline ''. BBC. Retrieved 16 May 2010. ^ Jump up to : `` The Albert medal : The story behind the medal in the collection ''. UK Parliament. Retrieved 5 August 2010. Jump up ^ `` All England Frightened ; the Damage to the Parliament Buildings Enormous '' ( PDF ). The New York Times. 26 January 1885. Retrieved 21 December 2009. Jump up ^ Sullivan, T.D. ( 1905 ). Recollections of Troubled Times in Irish Politics. Dublin : Sealy, Bryers & Walker ; M.H. Gill & Son. pp. 172 -- 173. OCLC 3808618. OL 23335082M. Jump up ^ Gerhold ( 1999 ), p. 77. Jump up ^ `` On This Day : 17 June -- 1974 : IRA bombs parliament ''. BBC News. 17 June 1974. Retrieved 2 March 2013. Jump up ^ `` On This Day : 30 March -- 1979 : Car bomb kills Airey Neave ''. BBC News. 30 March 1979. Retrieved 2 March 2013. 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Jump up ^ `` Parliament in the Making : 2015 Historic Anniversaries programme ''. UK Parliament. Archived from the original on 14 January 2015. Retrieved 18 January 2015. Jump up ^ `` 2015 Anniversaries : An Update '' ( PDF ). UK Parliament. 11 June 2013. Retrieved 18 January 2015. Jump up ^ `` BBC marks the 800th anniversary of the Magna Carta with ' Taking Liberties ' season '' ( PDF ). BBC. Retrieved 18 January 2015. Bibliography Cooke, Sir Robert ( 1987 ). The Palace of Westminster. London : Burton Skira. ISBN 978 - 0333459232. Fell, Sir Bryan H. ; Mackenzie, K.R. ( 1994 ) ( 1930 ). Natzler, D. L, ed. The Houses of Parliament : A Guide to the Palace of Westminster ( 15th ed. ). London : Her Majesty 's Stationery Office. ISBN 978 - 0117015791. Field, John ( 2002 ). The Story of Parliament in the Palace of Westminster. London : Politico 's Publishing ; James & James Publishers. ISBN 978 - 1904022145. Gerhold, Dorian ( 1999 ). Westminster Hall : Nine Hundred Years of History. London : James & James Publishers. ISBN 978 - 0907383888. Guide to the Palace of Westminster. London : Warrington. 1911. OCLC 5081639. OL 13507081M. Jones, Christopher ( 1983 ). The Great Palace : The Story of Parliament. London : British Broadcasting Corporation. ISBN 978 - 0563201786. Macdonald, Peter ( 2004 ). Big Ben : The Bell, the Clock and the Tower. Stroud : Sutton Publishing. ISBN 978 - 0750938280. Port, M.H., ed. ( 1976 ). The Houses of Parliament. New Haven, Connecticut ; London : Yale University Press. ISBN 978 - 0300020229. Quinault, Roland ( 1992 ). `` Westminster and the Victorian Constitution ''. Transactions of the Royal Historical Society. 6. 2 : 79 -- 104. doi : 10.2307 / 3679100. ( subscription required ) Riding, Christine ; Riding, Jacqueline, eds. ( 2000 ). The Houses of Parliament : History, Art, Architecture. London : Merrell Publishers. ISBN 978 - 1858941127. Tanfield, Jennifer ( 1991 ). In Parliament 1939 -- 50 : The Effect of the War on the Palace of Westminster. London : Her Majesty 's Stationery Office. ISBN 978 - 0108506406. OCLC 26808272. Wilson, Robert ( 2005 ) ( 1994 ). The Houses of Parliament. Norwich : Jarrold Publishing. ISBN 978 - 1841650999. Further reading Shenton, Caroline ( 2012 ). The Day Parliament Burned Down. Oxford : Oxford University Press. ISBN 978 - 0199646708. OCLC 785869543. External links Wikimedia Commons has media related to Palace of Westminster. 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Question: when was the house of parliament built london
Answer: 1016