Brass Shop, Bolt Shop and Boiler House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 30 May 1967. A C19 Foundry.
Brass Shop, Bolt Shop and Boiler House
- WRENN ID
- open-corridor-moth
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Truro and Falmouth MP: Jayne Kirkham (Lab)
- Country
- England
- Date first listed
- 30 May 1967
- Type
- Foundry
- Address
- Brass Shop, Bolt Shop and Boiler House, Perran Wharf, Mylor
- OS grid reference
- SW 776 384
- Coordinates
- 50.20425, -5.11734
- Source
- Historic England listing
Description
The Brass Shop, Bolt Shop, and Boiler House, now used as stores, date from the early 19th century. They are constructed from lime-washed rubble with granite sills, quoins, and timber lintels, and feature mostly clay pantile roofs with gable ends. The buildings have an irregular U-shaped plan, with the Brass Shop and Bolt Shop forming a wing that projects east on the south side, while the boiler house projects to the north, adjacent to the Green Sand Shop to the west and Smiths shop to the north. A former waterwheel that served Smiths shop was located in the northwest corner. The structure is single storey, and the north wall of the Bolt Shop and Brass Shop retains three original 30-paned cast iron windows with spikes behind the glass.
These buildings are part of the Perran Iron Foundry, which was established in 1791 and became the most significant foundry in Cornwall during its peak, known for manufacturing some of the largest beam engines ever constructed. The site is notable for its pantile roofs and the cast iron windows, of which very few examples survive in Cornwall.
Local climate
Brass Shop, Bolt Shop and Boiler House receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.
It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% of listed buildings. Of these, 3 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.
- 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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