Wall, West of Bastion 20 is a Grade I listed building in the Oxford local planning authority area, England. First listed on 12 January 1954. City wall.

Wall, West of Bastion 20

WRENN ID
first-screen-reed
Grade
I
Local Planning Authority
Oxford
Constituency
Oxford West and Abingdon MP: Layla Moran (LD)
Country
England
Date first listed
12 January 1954
Type
City wall
Address
Wall, West of Bastion 20, South East Angle
OS grid reference
SP 517 060
Coordinates
51.75069, -1.25119
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The city wall, built in 1485, is located between the southeast angle and Christchurch Wall, west of Bastion 20. The upper part of the wall has been rebuilt.

Local climate

Wall, West of Bastion 20 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
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  • 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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