Harmondsworth Hall is a Grade II listed building in the Hillingdon local planning authority area, England. First listed on 1 March 1950. House.
Harmondsworth Hall
- WRENN ID
- twelfth-paling-gold
- Grade
- II
- Local Planning Authority
- Hillingdon
- Constituency
- Hayes and Harlington MP: John McDonnell (Lab)
- Country
- England
- Date first listed
- 1 March 1950
- Type
- House
- Address
- Harmondsworth Hall, Summerhouse Lane
- OS grid reference
- TQ 057 776
- Coordinates
- 51.48834, -0.47863
- Source
- Historic England listing
Description
Harmondsworth Hall is an early 18th-century building located on Summerhouse Lane in Harmondsworth. It is constructed of brown brick with red dressings and features two storeys. The first floor has three dummy windows with flat arches and cills, along with one double-hung sash window set in an architrave with a semi-circular arch, brick imposts, voussoirs, and a raised keystone. On the ground floor, there is one modern window and two circular windows with radiating glazing bars. The entrance has a wood door surround with Roman Doric pilasters, an entablature, and a pediment, along with a six-panel door in the reveal topped by a fanlight. The building is finished with a cornice and a panelled parapet with a pediment. Additionally, there is a two-storey extension on the right side that dates from around 1800.
Local climate
Harmondsworth Hall sits in a drier-than-average part of the UK, with an average of 700 mm of rain a year. This makes it drier than 89% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 83% of listed buildings.
It experiences an average of 29 freeze-thaw cycles a year, fewer than 68% of listed buildings. Of these, 12 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
- No related consent applications matched
- 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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