20a, Southwood Lane N6 is a Grade II listed building in the Haringey local planning authority area, England. First listed on 10 May 1974. House.
20a, Southwood Lane N6
- WRENN ID
- stark-quoin-alder
- Grade
- II
- Local Planning Authority
- Haringey
- Constituency
- Hampstead and Highgate MP: Tulip Siddiq (Lab)
- Country
- England
- Date first listed
- 10 May 1974
- Type
- House
- OS grid reference
- TQ 283 875
- Coordinates
- 51.5722, -0.14876
- Source
- Historic England listing
Description
20A Southwood Lane is an early 19th-century building located in Highgate. It is two storeys tall and features one window, positioned between No 20 and the Tabernacle. The building is constructed of stock brick and has a stone-coped parapet. The first-floor window is a replaced sash window with glazing bars, set beneath a gauged flat brick arch. On the ground floor, there is one plain plate glass window and a four-panel door, which is now half-glazed, topped with a rectangular fanlight. A plain modern hood is present above the door. This building is included in the listing for its group value with Nos 16 to 20 (even), No 20A, Highgate Tabernacle, and No 22.
Local climate
20a, Southwood Lane N6 sits in one of the driest parts of the UK, with an average of 680 mm of rain a year. This makes it drier than 99% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 99% of listed buildings.
It experiences an average of 29 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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