Bush Hall House is a Grade II listed building in the Welwyn Hatfield local planning authority area, England. First listed on 9 December 1983. Former mill house. 3 related planning applications.

Bush Hall House

WRENN ID
brooding-window-hawthorn
Grade
II
Local Planning Authority
Welwyn Hatfield
Constituency
Welwyn Hatfield MP: Andrew Lewin (Lab)
Country
England
Date first listed
9 December 1983
Type
Former mill house
Address
Bush Hall House, Mill Green, Bush Hall Lane, AL9 5NT
OS grid reference
TL 239 100
Coordinates
51.77525, -0.20557
Source
Historic England listing

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

Description

Bush Hall House is a former mill house, dating from the early 19th century. Constructed of red brick with a plain tile hipped roof punctuated by centre stacks on both the left and right sides, it stands three storeys high. The front elevation features three sash windows with flush wooden frames set within cambered heads. A central flush panel door, topped with a flat hood supported by fluted brackets and flanked by panel pilasters, provides entry. The north elevation incorporates a three-storey bay window, alongside some blank windows, and a mid-19th century ground floor porch. A rear extension and a single-storey outbuilding, both dating from the mid-19th century, are located on the south side. Early 19th-century iron bars are present below the sills of the north elevation windows, originally intended as strengtheners.

Local climate

Bush Hall House sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 85% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 81% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% 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 2015
  • 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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