23 and 25, Mill Lane is a Grade II listed building in the Welwyn Hatfield local planning authority area, England. First listed on 24 January 1967. A C16 House. 3 related planning applications.
23 and 25, Mill Lane
- WRENN ID
- winter-porch-cedar
- Grade
- II
- Local Planning Authority
- Welwyn Hatfield
- Constituency
- Welwyn Hatfield MP: Andrew Lewin (Lab)
- Country
- England
- Date first listed
- 24 January 1967
- Type
- House
- OS grid reference
- TL 231 161
- Coordinates
- 51.8305, -0.21403
- Source
- Historic England listing
Description
House. Built in the early 16th century, this is a Wealden frame house with a double-fronted design, formerly situated on a moated site. It was extended westward and northward in the 18th century. The house is two storeys high and has a red tile roof. It features exposed heavy studs, double-thick in the centre, and around 1910 brick infill to the ground floor, with roughcast infill to the jettied upper floor. Curved braces are also visible. There are two flush sash windows. Internally, the house has moulded transverse and axial floor beams. The early 18th-century western extension is constructed in painted brick, with a gable-end stack and a coved plaster cornice, along with a floor band and one flush sash window. A weatherboarded northern extension runs along the entire range.
Local climate
23 and 25, Mill Lane 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 — 5 transactions since 2006
- 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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