21-28, Dorset Square NW1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 14 March 1966. House. 17 related planning applications.
21-28, Dorset Square NW1
- WRENN ID
- rough-storey-dew
- Grade
- II
- Local Planning Authority
- Westminster
- Constituency
- Cities of London and Westminster MP: Rachel Blake (Lab)
- Country
- England
- Date first listed
- 14 March 1966
- Type
- House
- Address
- 21-28, Dorset Square NW1, City of Westminster
- OS grid reference
- TQ 276 820
- Coordinates
- 51.52272, -0.16193
- Source
- Historic England listing
Description
Nos. 21-28 form a terrace of houses on the west side of Dorset Square, constructed around 1815 to 1820 as part of the Portman Estate development. The houses are built of stock brick with channelled stucco to the ground floors, and have concealed slate roofs. They are arranged over four storeys with a basement. Each house has a three-window front.
The doorways are semicircular and arched, progressing from the right to the centre of the terrace, then to the left, with panelled doors set within jambs of Greek Doric columns supporting a Greek key enriched head surround. Fanlights are present above the doors. The upper floors feature recessed sash windows, each set within a flat, gauged arch. A plat band sits above the ground floor, culminating in a stucco cornice and blocking course. The first floor has cast iron balconies featuring a geometric-anthemion pattern. Area railings are topped with urn finials.
No. 26-28 was once the home of George Grossmith, a fact commemorated by a Greater London Council plaque.
Local climate
21-28, Dorset Square NW1 sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 93% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 94% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, more than 51% of listed buildings. Of these, 15 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 — 5 transactions since 1998
- Related listed building consents — 17 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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