Bastion 15 is a Grade I listed building in the Oxford local planning authority area, England. First listed on 12 January 1954. City wall.

Bastion 15

WRENN ID
eternal-passage-jet
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
OS grid reference
SP 519 063
Coordinates
51.75366, -1.24897
Source
Historic England listing

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

Description

Bastion 15 is a section of the city wall built in 1485, located in New College. It is largely intact.

Local climate

Bastion 15 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 78% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 73% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 61% of listed buildings. Of these, 16 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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Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. 14, Longwall Street Grade II 21 m
  2. Wall South of Bastion 14 Grade I 24 m
  3. 13, Longwall Street Grade II 25 m
  4. Wall, South of Bastion 15 Grade I 30 m
  5. St Edmund Hall, Churchyard Walls Round the Library Grade II 52 m
  6. 8, Longwall Street Grade II 59 m
  7. Bastion 14, on North East Angle of Wall Grade I 66 m
  8. Bastion 16 Grade I 68 m
  9. 7, Longwall Street Grade II 68 m
  10. Wall, East of Bastion 13 Grade I 71 m