Bastion 21 is a Grade I listed building in the Oxford local planning authority area, England. First listed on 12 January 1954. A 1485 Bastion.
Bastion 21
- WRENN ID
- weathered-fireplace-sedge
- Grade
- I
- Local Planning Authority
- Oxford
- Constituency
- Oxford West and Abingdon MP: Layla Moran (LD)
- Country
- England
- Date first listed
- 12 January 1954
- Type
- Bastion
- OS grid reference
- SP 515 059
- Coordinates
- 51.75013, -1.25398
- Source
- Historic England listing
Description
Bastion 21 is a section of the city wall built in 1485, located within Corpus Christi College. It has been refaced with ashlar stone.
Local climate
Bastion 21 sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 77% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 70% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, more than 50% of listed buildings. Of these, 15 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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Nearby listed buildings
- Wall, East of Bastion 21
- Corpus Christi College, Presidents Lodging
- Cathedral Church
- Corpus Christi College, Fellows Building, Cloister Quadrangle
- Corpus Christi College, Library
- Christ Church Picture Gallery
- Corpus Christi College, Boundary Wall Fronting Merton Grove on East of Garden
- Corpus Christi College, Cloister, Cloister Quadrangle
- Corpus Christi College, Chapel
- The Chapter House and Dorter Range to South of Cathedral