21, Chiswick High Road W4 is a Grade II listed building in the Hounslow local planning authority area, England. First listed on 21 May 1973. House. 3 related planning applications.

21, Chiswick High Road W4

WRENN ID
scarred-spandrel-furze
Grade
II
Local Planning Authority
Hounslow
Constituency
Hammersmith and Chiswick MP: Andy Slaughter (Lab)
Country
England
Date first listed
21 May 1973
Type
House
Address
21, Chiswick High Road W4, W4 2ND
OS grid reference
TQ 218 785
Coordinates
51.49308, -0.24624
Source
Historic England listing

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

Description

No. 21 Chiswick High Road is a house dating from around 1830 to 1840. It is constructed of brown brick with a stucco rusticated ground floor and a cornice and parapet. The house is three storeys high with a basement. The first and second floors have four giant composite pilasters which support a cornice with a modified pediment and four finials. A first-floor iron balcony, featuring an anthemion motif, is present. A four-light window has an architrave with modified pilasters, an entablature, and a pediment, all featuring original glazing bars. The modern front door is fitted with glass panels and a fan with a keystone, while the ground floor features modern glazing.

Local climate

21, Chiswick High Road W4 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 — 2 transactions since 2004
  • 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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  2. 3, Chiswick High Road W4 Grade II 56 m
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  8. 1 and 2, St Peter's Villas W6 Grade II 231 m
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