21, Hanover Square W1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 14 January 1970. A C18 Town house. 19 related planning applications.
21, Hanover Square W1
- WRENN ID
- western-fireplace-cobweb
- Grade
- II
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Date first listed
- 14 January 1970
- Type
- Town house
- Address
- 21, Hanover Square W1, City of Westminster, W1S 1HY
- OS grid reference
- TQ 288 810
- Coordinates
- 51.5136, -0.14441
- Source
- Historic England listing
Description
No. 21 Hanover Square is a substantial town house built around 1740 to 1750, with later remodelling in the mid-19th century and beyond. The building is constructed of red brick, featuring Portland stone and painted dressings. It stands three storeys high, with a basement and a slated mansard roof that includes dormer windows. The façade has five windows, with two additional windows on the return and a Venetian window on the central projection. The ground floor is rusticated and has two porches supported by Doric columns, likely added in the early 20th century. The first-floor windows are framed with architraves and cornices. A main cornice runs along the top, topped by a balustraded parapet that screens the attic. The property also has area railings and is located on a corner site with Brook Street.
Local climate
21, Hanover Square W1 sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 95% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 98% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 57% 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
Sign in or create a free account to unlock:
- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 3 transactions since 2016
- Related listed building consents — 19 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.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings