15 and 17, Harley Street is a Grade II listed building in the Westminster local planning authority area, England. Terrace houses. 7 related planning applications.
15 and 17, Harley Street
- WRENN ID
- vacant-moulding-swallow
- Grade
- II
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Type
- Terrace houses
- Address
- 15 and 17, Harley Street, London, City of Westminster, W1G 9QH
- OS grid reference
- TQ 287 814
- Coordinates
- 51.51731, -0.14644
- Source
- Historic England listing
Description
Nos 15 and 17 Harley Street are a pair of terrace houses built in the mid to late 18th century. They are constructed of brown brick with slate roofs and have a stuccoed ground floor. The buildings rise four storeys with a basement and feature dormers in a slated mansard roof. Each house has three windows. There is a bracketed course at the third floor and a moulded cornice at the parapet. The round-headed doorways are located to the left and are accompanied by sidelights and fanlights. The revealed sash windows do not have glazing bars and are topped with gauged flat arches. Both houses have continuous cast iron balconies dating from around 1800 on the first floor.
In 2018, an ornate plasterwork ceiling, likely from the mid-18th century, was uncovered in the rear first-floor room of No. 17.
Local climate
15 and 17, Harley Street 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
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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 7 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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