Southend High School for Boys, also known by its initialism SHSB, is a selective secondary Grammar school situated along Prittlewell Chase in Prittlewell, in the north-west of Southend-on-Sea, England, south-west of the roundabout of the A127 and A1159.
 It teaches students from the age of 11 through to 18 years old, and admission to the school is dependent upon their performance in selective 11+ tests set by the Consortium of Selective Schools in Essex (CSSE).
 It converted to Academy status on 1 February 2011, and has autonomous control over itself.
 Student numbers have been increasing over recent years.
 As of academic year 2008-2009, there are just over 1,150 students on roll, with over 230 of them in the Sixth Form, 20 to 30 of which come from other schools, including girls.
The A1159 road is a short road skirting the north of Southend-on-Sea from Prittlewell to Southchurch, in Essex, England.
Southchurch Hall is Grade I Listed Medieval moated house located in Southchurch, Southend-on-Sea, Essex, England.
 The Hall was home to farming families until the 1920s.
 In 1930 it was extensively restored and presented to the town of Southend by the Dowsett Family.
 The Hall has been listed in Jenkins' top 1000 houses in England.
Prittlewell railway station is on the Shenfield to Southend Line in the East of England, serving the residential district of Prittlewell in Southend-on-Sea, Essex.
 It is 40 mi down-line from London Liverpool Street and is situated between and .
 Its three-letter station code is PRL.
Essex is a county in the East of England immediately north-east of London and is one of the home counties.
 It borders the counties of Suffolk and Cambridgeshire to the north, Hertfordshire to the west, Kent across the estuary of the River Thames to the south and London to the south-west.
 The county town is Chelmsford, which is the only city in the county.
Surrey is a county in the South East England and is one of the home counties.
 It shares borders with Kent to the east, East Sussex to the south-east, West Sussex to the south, Hampshire to the west and south-west, and Berkshire to the north-west and Greater London to the north-east.
 The county town is Guildford.
 Surrey County Council sits outside its jurisdiction in Kingston upon Thames, a town which has been administered as part of Greater London since 1965.
 With a resident population of 1.1 million, Surrey is the most densely populated and third-most-populous county in the South East region.
Kent is a county in South East England and one of the home counties.
 It borders Greater London to the north west, Surrey to the west and East Sussex to the south west.
 The county also shares borders with Essex along the estuary of the River Thames, and with the French department of Pas-de-Calais along the English Channel.
 The county town is Maidstone.
Camp Bling was a UK-based road protest camp set up in Southend-on-Sea, Essex during September 2005 to obstruct a £25 million plan to widen the Priory Crescent section of the A1159 road over the Royal Saxon tomb in Prittlewell.
 In April 2009 the authority announced that plans to build the road had been abandoned and the camp was disbanded in July 2009.
Prittlewell is a district within the Borough of Southend-on-Sea, Essex.
 Historically, Prittlewell is the original town, Southend being the "south end" of Prittlewell.
 The village of Prittlewell was originally centred at the joining of three main roads, East Street, West Street and North Street, which was extended south in the 19th century and renamed Victoria Avenue.
 The principal administrative buildings in Southend are located along Victoria Avenue, although Prittlewell is now mainly a residential area, served by Prittlewell railway station.
The Royal Saxon tomb in Prittlewell is a high-status Anglo-Saxon tomb excavated at Prittlewell, north of Southend-on-Sea, in the English county of Essex.
 In the autumn of 2003, in preparation for a road-widening scheme, an archaeological survey was carried out on a plot of land to the north-east of Priory Park in Prittlewell.
 Earlier excavations had indicated Saxon burials in the area however it was not expected that such a significant find could be made.
 The archaeologists were lucky in the placement of their trench and uncovered a set of Saxon remains.

Question: The A1159 road is a short road, skirting the north of Southend-on-Sea from Prittlewell to Southchurch, in Essex, a county in the East of England immediately north-east of London, and is one of the home counties, the county town is what, which is the only city in the county? 
Answer: Chelmsford