Table:
Name | Place | Map ref | Date | Notes | Image
Cathedral Church of St. Mary | North Walk, The Close, Salisbury | 51°03′54″N 1°47′51″W\ufeff / \ufeff51.064944°N 1.79738°W | 1220 | Foundations laid April 25, 1220. Consecrated 1225, 1258 and when completed in 1266. | 
Salisbury Cathedral School | The Close, Salisbury. SP1 2EQ | 51°03′50″N 1°47′46″W\ufeff / \ufeff51.063886°N 1.796082°W | 13/15th century | Initially residential, now a private school. | 
Malmesbury House | North Walk, The Close, Salisbury | 51°03′58″N 1°47′38″W\ufeff / \ufeff51.066054°N 1.793979°W | 1416 | Original known as Copt Hall demolished in 1399, still residential. | 
The Theological College | North Walk, The Close, Salisbury. SP1 2EG | 51°03′58″N 1°47′43″W\ufeff / \ufeff51.0662°N 1.7954°W | Late 17th century | Now called Sarum College, an ecumenical study centre. | 
The Close Wall, Rosemary Lane | Rosemary Lane, North Walk, The Close, Salisbury, also Exeter St. Salisbury | 51°03′54″N 1°47′38″W\ufeff / \ufeff51.0650°N 1.7939°W | 1331 | The ancient wall surrounding the Cathedral close on north, east and south sides. Remnants of Old Sarum Cathedral visible. | no image
The Matron's College | 39-46 The High Street, Salisbury. SP1 2EL | 51°04′00″N 1°47′52″W\ufeff / \ufeff51.066659°N 1.797729°W | 1682 | Accommodation for clergy widows. Established by Bishop Seth Ward and probably designed by Christopher Wren, still functions with original intent. | 
North Gate | High St. Salisbury. SP1 2EG | 51°04′01″N 1°47′52″W\ufeff / \ufeff51.066957°N 1.797729°W | 14/15th century | Two-storey building over and around north entrance to the Cathedral Close. | 
Mompesson House | Choristers' Green, The Close Salisbury. SP1 2EG | 51°40′01″N 1°47′55″W\ufeff / \ufeff51.66687°N 1.798486°W | 1704 | Town house built for Sir Thomas Mompesson, 17/18th century MP, now a historical exhibit. | 
Screen, Walls, Piers, Gates and Overthrow of Mompesson House | Choristers' Green, The Close Salisbury. SP1 2EG | 51°40′01″N 1°47′55″W\ufeff / \ufeff51.66687°N 1.798486°W | 1704 | Frontage of house, low wall, iron gate and railings,18th century iron lamps. | 
Wren Hall | Choristers' Green, The Close, Salisbury. SP1 2EL | 51°04′00″N 1°47′57″W\ufeff / \ufeff51.0666°N 1.7993°W | 14/15th century wing of Braybrook House rebuilt in 1714 | Originally a cathedral choristers' school, now used as a cathedral education centre. | 
Braybrooke House | Choristers' Green, The Close. SP1 2EG | 51°03′59″N 1°47′59″W\ufeff / \ufeff51.0664°N 1.7996°W | 14/15th century | Initially residential, now a resource centre. | 
Hemingsby House | Choristers' Green, The Close, Salisbury. SP1 2EL | coord n/a | 14/15th century | Former canonry, has appearance of two houses. | 
The King's House | West Walk, The Close, Salisbury. SP1 2EG | 51°03′52″N 1°48′00″W\ufeff / \ufeff51.064547°N 1.800004°W | 13/14th century, altered in 16/17th century | Originally the residence of the Abbot of Sherborne, now a museum. | \\p-
68 West Walk | The Close, Salisbury. SP1 2EN | 51°03′50″N 1°48′00″W\ufeff / \ufeff51.0639°N 1.7999°W | 1594 | Residential to the present day | 
Retaining Wall, Screen Railing, Piers and Gates of No. 68 West Walk | 68 West Walk, The Close, Salisbury. SP1 2EN | 51°03′50″N 1°47′59″W\ufeff / \ufeff51.0638°N 1.7996°W | circa 1720 | Iron decorative screen with gate and low wall. | no image
The Walton Canonry | No. 96 West Walk, The Close, Salisbury. SP1 2EN | 51°03′47″N 1°47′58″W\ufeff / \ufeff51.062989°N 1.799505°W | 1720 | A private residence, named from earlier resident, Canon Walton, son of the angler, still residential. | 
Leaden Hall | West Walk, The Close, Salisbury. SP1 2EP | 51°03′47″N 1°48′00″E\ufeff / \ufeff51.06305°N 1.79987°E | 1717 | Original site of canonical house of Elias of Dereham, now part of a private school. | no image
South Gate or Harnham Gate and Gatehouse | 1 de Vaux Place, Salisbury. SP1 2ES | 51°03′45″N 1°47′52″W\ufeff / \ufeff51.062364°N 1.797729°W | 14th Century | Archway, gate and gatehouse. Southern gate into Cathedral Close. | 
Bishop's Gate | Exeter Street, Salisbury. SP1 2EG | 51°03′51″N 1°47′39″W\ufeff / \ufeff51.064054°N 1.79415°W | 13/14th century | The eastern gateway into Cathedral Close | no image
St Annes Gate | 2 St John's St, Salisbury. SP1 2EG | 51°03′57″N 1°47′37″W\ufeff / \ufeff51.065895°N 1.79368°W | circa 1331 | Originally a residence and gateway, now only partly residential but still a gateway. | 
Church of St. Lawrence | Stratford-sub-Castle, Salisbury | 51°05′34″N 1°48′55″W\ufeff / \ufeff51.092782°N 1.815276°W | Early C13 chancel but consecration recorded for 1326. | Parish Church of the village of Stratford sub Castle | 
Church of St Martin | St Martin's Church St., Salisbury. SP1 2HY | 51°03′56″N 1°47′14″W\ufeff / \ufeff51.065548°N 1.787188°W | 13/14th century | Originally a Saxon church, several restorations. | 
Church of St Thomas and St Edmund | St Thomas' Square., Salisbury. SP1 1BA | 51°04′08″N 1°47′50″W\ufeff / \ufeff51.068986°N 1.797134°W | Probably 1220 | Parish church of New Sarum. | 
John Halle's Hall | The New Canal, Salisbury. SP1 2AD | 51°05′13″N 1°47′42″W\ufeff / \ufeff51.086845°N 1.794902°W | 15th century with late 19th century frontage. | Originally residential, now entrance to Odeon cinema. | no image
91 Crane Street | Salisbury SP1 2PU. | 51°04′03″N 1°47′54″W\ufeff / \ufeff51.067415°N 1.79822°W | mid 14th century | Residential. / Previously called 'Le Crane' in 1455 | 
The King's Arms | St John's Street, Salisbury. SP1 2SB | 51°03′58″N 1°47′24″W\ufeff / \ufeff51.066134°N 1.79012°W | 15th century | Probably residential initially, later and now, an inn. | 
The Old George Inn | 15-17 The High Street, Salisbury. SP1 2NT | 51°04′04″N 1°47′51″E\ufeff / \ufeff51.067839°N 1.797405°E | 14th century | This old inn has a number of literary and historical connections, now, with ground floor removed, entrance to shopping mall. No longer an inn. | 
Church House | 99/101 Crane St, Salisbury. SP1 2QE | 51°04′03″N 1°47′57″W\ufeff / \ufeff51.067378°N 1.799258°W | 15/18th century | Originally donated by the Audley family as a workhouse, now diocesan administrative offices. | 
Joiners' Hall | St Ann's Street, Salisbury. SP1 2DX | 51°03′58″N 1°47′24″W\ufeff / \ufeff51.066188°N 1.79012°W | Early 17th century | Initially a guild meeting hall, now residential | 
Mill House and Old Mill | Town Path, Harnham, Salisbury | 51°03′50″N 1°48′30″W\ufeff / \ufeff51.063839°N 1.808217°W | 14/15th century | Mill house, restored early 19th century, now with hotel attached. | 
School of Arts Annexe | 4 New Street, Salisbury. SP1 2PH | 51°04′02″N 1°47′40″E\ufeff / \ufeff51.067093°N 1.794379°E | 18th century | Originally part of Salisbury School of Art, now offices. | 
The Poultry Cross | Silver Street/Minster Street, Salisbury. SP1 2NG | 51°04′08″N 1°47′46″E\ufeff / \ufeff51.068759°N 1.79616°E | 14th century | Originally to mark the site of a market. Still used as a market site twice weekly. | 
Trinity Street Almshouses | Nos. 1-13 Trinity Street Salisbury. SP1 2BD | 51°04′01″N 1°47′31″W\ufeff / \ufeff51.066881°N 1.79185°W | 1379 | 2 storied medieval hospital and accommodation rebuilt in 1702, now accommodation for elderly people. | 
Crane Bridge | Cranebridge Road, Salisbury. SP1 2QE | 51°04′04″N 1°47′50″W\ufeff / \ufeff51.067721°N 1.797134°W | 15th century | 4 span bridge over River Avon. | 
Harnham Bridge or Ayleswade Bridge | St Nicholas Road, Salisbury. SP1 2SN | 51°03′38″N 1°47′47″W\ufeff / \ufeff51.060616°N 1.796501°W | 1244 | The oldest bridge in Salisbury. Built by Bishop Bingham over the River Avon | 
Remains of Old Sarum Castle and Cathedral | Castle Road, Salisbury. SP1 3YS | 51°05′34″N 1°48′17″W\ufeff / \ufeff51.092904°N 1.804762°W | 12th century | Originally an important town and citadel, now a historical site. |

Question: what is the number of consecrations for the cathedral church of st. mary?
Answer: 3

Question: how many bridges are listed in total?
Answer: 2

Question: was the cathedral church of st. mary built before or after harnham bridge?
Answer: before

Question: how many churches in the list are from 13th century?
Answer: 7

Question: what structure was probably built around 1220?
Answer: Cathedral Church of St. Mary

Question: how many buildings are there total?
Answer: 36

Question: which is older, 68 west walk or leaden hall?
Answer: 68 West Walk

Question: how much older is harnham bridge (or ayleswade bridge) than the trinity street almshouses?
Answer: 135 years