Letterbox Adjacent to Number 12 is a Grade II listed building in the Norwich local planning authority area, England. First listed on 5 June 1972. Letterbox.

Letterbox Adjacent to Number 12

WRENN ID
sombre-portal-sienna
Grade
II
Local Planning Authority
Norwich
Constituency
Norwich South MP: Clive Lewis (Lab)
Country
England
Date first listed
5 June 1972
Type
Letterbox
OS grid reference
TG 229 085
Coordinates
52.62897, 1.29344
Source
Historic England listing

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

Description

The letterbox adjacent to number 12 on Gentleman's Walk dates from around 1870. It is made of cast iron and features a hexagonal shape with decorative foliage on the top.

Local climate

Letterbox Adjacent to Number 12 sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 88% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 95% of listed buildings.

It experiences an average of 24 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 13 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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  2. 7, London Street Grade II 35 m
  3. 16, Gentleman's Walk Grade II 39 m
  4. 9 and 11, London Street Grade II 43 m
  5. 8, Guildhall Hill Grade II 46 m
  6. Walnut Tree Shades Grade II 57 m
  7. The Guildhall Grade I 64 m
  8. 24 Gentleman's Walk Grade II* 79 m
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  10. Royal Arcade Grade II* 94 m