20 and 21, Devonshire Terrace W1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 10 April 1975. Terraced house. 3 related planning applications.

20 and 21, Devonshire Terrace W1

WRENN ID
other-newel-thrush
Grade
II
Local Planning Authority
Westminster
Constituency
Kensington and Bayswater MP: Joe Powell (Lab)
Country
England
Date first listed
10 April 1975
Type
Terraced house
Address
20 and 21, Devonshire Terrace W1, City of Westminster, W2 3DW
OS grid reference
TQ 263 810
Coordinates
51.51456, -0.18075
Source
Historic England listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

A pair of terraced houses located in Devonshire Terrace, built in the mid-19th century. The houses are constructed of stucco, with the roof being obscured. They are three storeys high with an attic. Number 20 has three windows across its facade, while Number 21 has five, with one central window being blind. The ground floor features channelling. Projecting Doric porches are present. A continuous balustraded balcony runs along the first floor. The windows are square-headed, with architraves above the ground floor level. Pediments adorn the first-floor windows. A cornice sits above the second floor, followed by a subsidiary cornice and a balustraded parapet to the attic. Cast iron area railings are present, with a balustraded area to Number 21 and cast iron railings to Number 20.

Local climate

20 and 21, Devonshire Terrace W1 sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 93% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 94% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, more than 51% 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 33 transactions since 1995
  • Related listed building consents — 3 applications
  • 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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