44, Hay's Mews W1 is a Grade II listed building in the Westminster local planning authority area, England. First listed on 14 January 1970. Coach house. 3 related planning applications.

44, Hay's Mews W1

WRENN ID
dim-crypt-root
Grade
II
Local Planning Authority
Westminster
Constituency
Cities of London and Westminster MP: Rachel Blake (Lab)
Country
England
Date first listed
14 January 1970
Type
Coach house
Address
44, Hay's Mews W1, City of Westminster, W1J 5QD
OS grid reference
TQ 286 805
Coordinates
51.5091, -0.14691
Source
Historic England listing

Also on this page: related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

No 44 Hay's Mews is a building that was originally a coach house for No 44 Berkeley Square, constructed around 1744 by William Kent. It features a "polite" front facing the garden of Berkeley Square. The building is made of brown brick and has a slate roof, standing two storeys tall. The street front has been altered, but it still shows revealed sash windows beneath gauged arches. The most notable aspect is the east elevation, which has five windows and a projecting central section with three windows topped by a pediment. It includes a modillion cornice and a blocking course, as well as a stucco plat band decorated with rosettes at the first-floor level. The windows are revealed glazing bar sashes set under flat gauged brick arches, and there is a central doorway located within a blind arch.

Local climate

44, Hay's Mews 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 — 3 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
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  6. 7, Hill Street W1 Grade II 30 m
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  8. 42, Berkeley Square W1 Grade II 36 m
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  10. 4, Hay's Mews W1 Grade II 46 m