9-20, Dorset Square NW1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 14 March 1966. Townhouse. 67 related planning applications.
9-20, Dorset Square NW1
- WRENN ID
- tattered-panel-vale
- 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
- Townhouse
- Address
- 9-20, Dorset Square NW1, City of Westminster
- OS grid reference
- TQ 276 820
- Coordinates
- 51.52318, -0.16162
- Source
- Historic England listing
Description
A row of terraced town houses forming the north side of Dorset Square, dating from around 1815 to 1820 as part of the Portman Estate development. The buildings are constructed of stock brick with channelled stucco to the ground floors, and have concealed slate roofs. They represent a unified block, extending over four storeys, with No. 18 having an additional fifth storey. Each house fronts with three windows. Semicircular arched doorways are present on the left, continuing to the central pair and then to the right; these doorways have panelled doors set within jambs of Greek Doric columns, topped with Greek key enrichment and fanlights. The upper floors contain recessed sash windows, most with glazing bars, set beneath flat, gauged arches. A plat band runs above the ground floor, and decorative stucco cornices and blocking courses crown the buildings. First-floor balconies display a geometric-anthemion pattern. Area railings are topped with urn finials. These townhouses have group value due to their contribution to the architectural character of Dorset Square.
Local climate
9-20, 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 — 17 transactions since 1995
- Related listed building consents — 67 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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