Walnut Farm House is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 29 January 1986. House.
Walnut Farm House
- WRENN ID
- small-ember-sorrel
- Grade
- II
- Local Planning Authority
- North Hertfordshire
- Constituency
- North East Hertfordshire MP: Chris Hinchliff (Lab)
- Country
- England
- Date first listed
- 29 January 1986
- Type
- House
- Address
- Walnut Farm House, Green End, Sandon
- OS grid reference
- TL 326 335
- Coordinates
- 51.9844, -0.06915
- Source
- Historic England listing
Description
Walnut Farm House is a house dating from the late 17th century or early 18th century, which was refronted in the mid to late 19th century and altered in the 20th century. It has a timber frame with a brick front that is rendered and colourwashed, topped with a tiled roof. The house features a three-cell lobby entry and is two storeys high with a plinth.
The entrance is a 20th-century porch with a plank door and a hipped tiled roof, located to the left of centre. This is flanked by tripartite sash windows and a two-light casement window on the right. On the first floor, there are three irregularly spaced sash windows and a two-light casement, all of which are recessed with cambered heads. A ridge stack is positioned behind the entrance.
The right end of the house has a gablet and a half hip with exposed struts over a cambered tie beam, along with 20th-century casements and decorative pargetting. The left end features a hipped roof with a lean-to roof over an outshut addition. At the rear, there is a slightly lower two-storey wing with an external stack and a lean-to outshut attached to the back.
Local climate
Walnut Farm 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 77% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 59% of listed buildings. Of these, 17 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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