Northaw House is a Grade II listed building in the Welwyn Hatfield local planning authority area, England. First listed on 22 August 1972. A C17 House, office. 7 related planning applications.
Northaw House
- WRENN ID
- secret-mantel-fen
- Grade
- II
- Local Planning Authority
- Welwyn Hatfield
- Constituency
- Hertsmere MP: Sir Oliver Dowden (Con)
- Country
- England
- Date first listed
- 22 August 1972
- Type
- House, office
- Address
- Northaw House, Cooper's Lane, Northaw and Cuffley, EN6 4NG
- OS grid reference
- TL 274 024
- Coordinates
- 51.70598, -0.1568
- Source
- Historic England listing
Description
Northaw House is a house built in 1698, now used as offices. It is constructed of painted plaster on red brick, with a slate mansard roof. The house has two storeys and attics over a sunken basement. The main elevation has seven windows, stepping forward in three shallow projections; the central two projections and the angles have chamfered quoins. A continuous moulded eaves cornice with square modillions runs along the top, and there is a first-floor band. The central three-window section is pedimented with a bullseye window. A semicircular porch, dating from around 1800, features two Doric columns and pilaster responds fluted at the necks. There is a flush panel door within a moulded frame, accessed by six stone steps and plain iron railings, with similar railings fronting a ditch. The recessed first-floor windows are sash windows, while the ground floor has French windows. Box dormers are visible in the roof. Flanking quadrant walls are constructed of red brick.
The entrance hall is floored with stone flags and has groin vaulting, with reeded door surrounds on either side. A 19th-century replica staircase is present, alongside the original service staircase, which has barley twist balusters on the right-hand side.
Plainer, two to three-storey service blocks adjoin the main house to the west, connected to a late 18th/early 19th-century former stable block built of painted brick with a slate roof and central ventilator. The stable block has a 1:4:1 window arrangement, with the outer bays recessed and featuring two-storey relieving arches.
The house is described in Pevsner’s 1977 architectural survey.
Local climate
Northaw 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 91% 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 33 freeze-thaw cycles a year, fewer than 54% 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 — 1 transaction since 2020
- Related listed building consents — 7 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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