21, South Square NW11 is a Grade II* listed building in the Barnet local planning authority area, England. First listed on 18 March 1965. House. 4 related planning applications.
21, South Square NW11
- WRENN ID
- fading-keep-evening
- Grade
- II*
- Local Planning Authority
- Barnet
- Constituency
- Finchley and Golders Green MP: Sarah Sackman (Lab)
- Country
- England
- Date first listed
- 18 March 1965
- Type
- House
- Address
- 21, South Square NW11, NW11 7AJ
- OS grid reference
- TQ 256 883
- Coordinates
- 51.5799, -0.18839
- Source
- Historic England listing
Description
The building at 21 South Square is a detached house built in the mid-20th century. It is constructed of similar red brick to the adjacent properties at numbers 19 and 20. The design is by the architect Edwin Lutyens. The house has two storeys and three window bays. A central doorway is topped by a hood supported on consoles. There is a dormer window in the roof, and a single-light staircase window on the first floor to either side. The windows are three-light sashes.
Local climate
21, South Square NW11 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 98% 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 30 freeze-thaw cycles a year, fewer than 66% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2015
- Related listed building consents — 4 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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