Powder House at Combe Martin Silver Mine is a Grade II listed building in the North Devon local planning authority area, England. First listed on 23 January 2003. Powder house.
Powder House at Combe Martin Silver Mine
- WRENN ID
- crooked-rood-umber
- Grade
- II
- Local Planning Authority
- North Devon
- Constituency
- North Devon MP: Ian Roome (LD)
- Country
- England
- Date first listed
- 23 January 2003
- Type
- Powder house
- Address
- Powder House at Combe Martin Silver Mine, Bowhay Lane
- OS grid reference
- SS 589 463
- Coordinates
- 51.19934, -4.02085
- Source
- Historic England listing
Description
The Powder House at Combe Martin Silver Mine is a mine powder house built in 1837. It is constructed of stone rubble and features a dry slate roof with gable ends. The building is a small, single-cell rectangular structure with the entrance located at the north end.
On the exterior, it is a single storey with a doorway on the left side of the north gable end, which has a timber lintel and a plank door. There is a window at the centre of the west side, also with a timber lintel and plank shutters.
Inside, the walls are limewashed, and the space is open to a reconstructed roof structure. The Combe Martin Silver Mine is historically significant as a documented Medieval mine.
Local climate
Powder House at Combe Martin Silver Mine sits in one of the wettest parts of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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