10, Mortimer Street W1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 1 December 1987. Corner block of offices and chambers. 6 related planning applications.
10, Mortimer Street W1
- WRENN ID
- western-chalk-shade
- Grade
- II
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Date first listed
- 1 December 1987
- Type
- Corner block of offices and chambers
- Address
- 10, Mortimer Street W1, City of Westminster, W1W 7AT
- OS grid reference
- TQ 292 815
- Coordinates
- 51.51852, -0.1384
- Source
- Historic England listing
Description
This is a corner block of offices and chambers, constructed between 1898 and 1903, possibly by Walker or more likely H. Fuller Clark. It is built of good quality red brick with Portland stone dressings, a slate roof, and is designed in a restrained Arts and Crafts Tudor style. The building is four storeys high and has a basement. It is three irregular bays wide on each front. The entrance is located in the second bay from the corner, featuring a plain stone surround and a segmental pediment. Very shallow, rectangular three-storey bay windows project on each front, and these are stone-dressed with 6-light, mullioned-transomed casement windows on each floor. The mullions and transoms are squared and set flush with the face. Otherwise, there are coupled glazing bar sashes in one reveal with flat gauged arches, and two groups of four sashed lights to the attic storey facing Mortimer Street. A shallow projecting stone cornice is present at the third-floor level, broken over the bay windows, and the attic is crowned by a plain stone frieze and cavetto coping. The building has cast iron area railings with very restrained Arts and Crafts detailing.
Local climate
10, Mortimer Street 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
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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 6 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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