The Duke of Northumberland 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.
The Duke of Northumberland
- WRENN ID
- wild-forge-summer
- Grade
- II
- Local Planning Authority
- Hounslow
- Constituency
- Brentford and Isleworth MP: Ruth Cadbury (Lab)
- Country
- England
- Date first listed
- 21 May 1973
- Type
- House
- Address
- The Duke of Northumberland, Northumberland House, Lower Square, Isleworth, TW7 6RL
- OS grid reference
- TQ 165 758
- Coordinates
- 51.46966, -0.32335
- Source
- Historic England listing
Description
The Duke of Northumberland is a late 18th-century house located on Lower Square, Isleworth. Originally named The Duke of Northumberland and previously The Northumberland Arms, it is a stucco building with five windows across its main facade. The windows are double-hung sashes set within reveals and feature flat arches. A substantial central porch boasts a semi-circular archway with cornice moulding, surmounted by a cornice and blocking course. The porch provides access to a doorway with a radiating fanlight. A cornice runs along the top of the main facade, followed by a parapet which features "The Northumberland Arms" rendered in early 19th-century raised stucco lettering. The roof is a slate mansard with gable ends and three flat-topped dormers. The building is flanked by two-storey wings, identical to each other. Each wing has a single-story stucco ground floor with a central door and narrow sash windows on either side, topped by a cornice over a blocking course. The second storey, set back from the facade, contains a single sash window, and a band connects the window sills. A parapet and hipped slate roof complete the wing.
Local climate
The Duke of Northumberland 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 92% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 90% of listed buildings.
It experiences an average of 30 freeze-thaw cycles a year, fewer than 64% of listed buildings. Of these, 13 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 — 6 transactions since 2007
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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