Trenoweth Farmhouse is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 22 June 1987. Farmhouse.
Trenoweth Farmhouse
- WRENN ID
- second-wattle-merlin
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 22 June 1987
- Type
- Farmhouse
- Address
- Trenoweth Farmhouse, Gunwalloe
- OS grid reference
- SW 658 221
- Coordinates
- 50.05291, -5.27271
- Source
- Historic England listing
Description
Trenoweth Farmhouse is an 18th-century farmhouse that may have been remodeled from an older structure. It features painted shale and serpentine rubble walls, slate sills, and oak lintels, which may have come from wreck salvage. The roof is steep and covered with asbestos slate, sloping slightly lower at the rear; it was formerly thatched and has rendered brick chimneys over the gable ends. The layout consists of a two-room plan with a central passage leading to a central stair, along with a 20th-century extension at the rear left. The left-hand room likely served as the hall or kitchen, featuring a large hearth.
The farmhouse is two storeys high with a nearly symmetrical two-window south front. It has a wide central doorway with a ledge door and a scantle slate roofed hood supported by wooden corbels embedded into the wall. The window openings are wide, with the ground floor openings being wider than those above. The windows are possibly original two-light horizontal sliding sashes with nine panes per light, and some retain old glass.
Inside, the farmhouse preserves much of its original carpentry and joinery, including a straight flight stair, pine muntin and plank partitions, bowtell moulded ceiling beams, and an oak lintel over the hearth in the left-hand room. At the front, there is a head or sill of a two-light mullioned window, which may have originated from an earlier house on this site, suggesting that this house was remodeled rather than entirely rebuilt in the 18th century. Trenoweth Farmhouse is a good example of a house with wide window openings, a style that was fashionable for farmhouses in the 18th century.
Local climate
Trenoweth Farmhouse receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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.
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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
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- 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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