West Barn at Great Offley House is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 24 October 1988. Barn.
West Barn at Great Offley House
- WRENN ID
- south-baluster-moss
- Grade
- II
- Local Planning Authority
- North Hertfordshire
- Constituency
- Hitchin MP: Alistair Strathern (Lab)
- Country
- England
- Date first listed
- 24 October 1988
- Type
- Barn
- Address
- West Barn at Great Offley House, Kings Walden Road, SG5 3EA
- OS grid reference
- TL 145 264
- Coordinates
- 51.92516, -0.33567
- Source
- Historic England listing
Description
The West Barn at Great Offley House is a 17th-century barn that has been converted into a party room. It features a timber frame resting on a red brick sill, with the frame exposed and infilled with red brick. The barn has a steep old red tile roof that extends over the rear aisle. It is a tall structure with four bays, facing east into the yard behind the house. The barn includes casement windows and glazed doors, with steps leading down into the interior. Notable architectural details include jowled posts and a mid-height rail that is jointed in-line, long straight tension braces, and curved braces connecting to the arcade plate of the rear aisle. The roof is supported by long curved braces to the tie-beams, which hold a clasped-purlin roof with two purlins on each slope. High collars support the upper purlin, while inclined queen-posts support the lower purlin. Aisle tie-beams also support inclined queen-posts leading to the aisle purlin. The barn was renovated in the late 20th century.
Local climate
West Barn at Great Offley 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 82% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 76% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 60% 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
- Sale history — 1 transaction since 2009
- 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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