1 and 3, Riding House Street W1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 12 April 1983. Office block. 8 related planning applications.
1 and 3, Riding House Street W1
- WRENN ID
- former-gable-autumn
- Grade
- II
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Date first listed
- 12 April 1983
- Type
- Office block
- Address
- 1 and 3, Riding House Street W1, City of Westminster, W1W 7DR
- OS grid reference
- TQ 289 815
- Coordinates
- 51.51827, -0.14258
- Source
- Historic England listing
Description
Nos 1 and 3 Riding House Street is an office block designed as the Radium Institute, noted as the first institution of its kind in England. It was built in 1911 by architect Thomas Phillips Figgis. The original western pavilion was extended in 1931 with a linking range to create an identical eastern pavilion. This stone-faced building features vigorous Baroque detailing and green Westmorland slate pyramidal roofs. The structure consists of twin pavilions, each three windows wide, connected by a simpler recessed three-window range. It has a basement, four main storeys, an attic, and a dormered roof for each pavilion. The basement and ground floor are characterized by boldly channelled rustication, which supports channelled quoins adorned with cartouches. The building also features a swagged frieze and a deep modillion cornice, along with good mosaic wall tiling in the corridors. It is listed for its historic and architectural significance.
Local climate
1 and 3, Riding House 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
- Sale history — 3 transactions since 1996
- Related listed building consents — 8 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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