Wellesley House Wyndham House is a Grade II listed building in the Kensington and Chelsea local planning authority area, England. First listed on 15 April 1969. House. 10 related planning applications.

Wellesley House Wyndham House

WRENN ID
tenth-chimney-weasel
Grade
II
Local Planning Authority
Kensington and Chelsea
Constituency
Chelsea and Fulham MP: Ben Coleman (Lab)
Country
England
Date first listed
15 April 1969
Type
House
Address
Wellesley House Wyndham House, Sloane Gardens Sw1
OS grid reference
TQ 280 786
Coordinates
51.49214, -0.15706
Source
Historic England listing

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

Description

Wellesley House, Wyndham House, and Nos 34, 34A, and 36 Sloane Square form one building, dating from the early 20th century and possibly designed by Mountford. The building is six storeys high and constructed of Portland stone with a slated roof, displaying a free classical architectural style. The ground storey contains shops facing Sloane Square. A rusticated mezzanine level is followed by two storeys featuring engaged Ionic columns. Gabled corner pavilions and dormers are visible on the roof. The building has tall, slab-like chimneys constructed of banded brick and stone.

Local climate

Wellesley House Wyndham House 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 — 9 transactions since 1995
  • Related listed building consents — 10 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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