Slate boundary wall is a Grade II listed building in the Windsor and Maidenhead local planning authority area, England. Boundary wall.
Slate boundary wall
- WRENN ID
- blind-bailey-fen
- Grade
- II
- Local Planning Authority
- Windsor and Maidenhead
- Constituency
- Maidenhead MP: Mr Joshua Reynolds (LD)
- Country
- England
- Type
- Boundary wall
- Address
- Slate boundary wall, Temple, Bisham
- OS grid reference
- SU 839 842
- Coordinates
- 51.55134, -0.7904
- Source
- Historic England listing
Description
The slate boundary wall at Temple in Bisham is a Grade II listed structure, approximately 150 meters long, made from Welsh slate, likely sourced from the Penrhyn Quarry in Bethesda, Gwynedd. It was probably erected around 1790 as part of the Temple House estate. The wall features thin sawn slate boards with roughly rounded tops, linked together by timber rails. Larger square slate uprights are positioned at intervals for support; these appear to have been machine-cut with a circular saw and may date from a later mid-19th century phase.
Temple House, which has since been demolished, was constructed in 1790 by Samuel Wyatt for Thomas Williams, a mill owner from Anglesey. Samuel Wyatt's brother was the agent for Lord Penrhyn, the owner of the main slate quarry, and the Wyatt family was known for promoting the use of Welsh slate in their architectural projects. This boundary wall represents a unique example of slate being used for fencing in an English context, illustrating the spread of this Welsh technique to England as a result of the Industrial Revolution.
Local climate
Slate boundary wall 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 84% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 87% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 69% 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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