12, Belgrave Square SW1 is a Grade I listed building in the Westminster local planning authority area, England. First listed on 24 February 1958. A C19 Mansion. 2 related planning applications.
12, Belgrave Square SW1
- WRENN ID
- veiled-step-larch
- Grade
- I
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Date first listed
- 24 February 1958
- Type
- Mansion
- Period
- C19
- Address
- 12, Belgrave Square SW1, City of Westminster, SW1X 8LB
- OS grid reference
- TQ 281 794
- Coordinates
- 51.4992, -0.15584
- Source
- Historic England listing
Description
No 12 Belgrave Square is a mansion built around 1840-1850 by Sir Robert Smirke. It is constructed of stucco with a slate mansard roof and has three storeys, an attic, and a basement. The building is five windows wide and features a central projecting porch supported by paired Doric columns. There is a balustraded balcony on the first floor, along with a wide central window that has a pediment above it. The windows are sashes with glazing bars, and there are French windows on the first floor. A dentil cornice and a balustraded parapet complete the exterior. The interior has not been inspected. This building is an integral part of the layout of Belgrave Square.
Local climate
12, Belgrave Square SW1 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.
- No sale records on file
- Related listed building consents — 2 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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