Tregassa Farmhouse is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 25 June 1985. Farmhouse.

Tregassa Farmhouse

WRENN ID
little-mortar-amber
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
25 June 1985
Type
Farmhouse
Address
Tregassa Farmhouse, Gerrans
OS grid reference
SW 874 359
Coordinates
50.18534, -4.97939
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Tregassa Farmhouse is a farmhouse dated 1763, as indicated by the datestone above the front door. It features slatestone rubble walls and a hipped asbestos slate roof that slopes slightly lower at the rear, with brick chimneys on the side walls. The building has a double depth plan, with a central rear wing that may be part of an earlier house, and lean-tos in the angles. It stands two storeys high and has a symmetrical three-window front facing south. The central doorway is flanked by a pair of 20th-century top-glazed doors and is framed by a simple wooden doorcase with a cornice. The windows are 16-pane sashes in their original openings, with shallow brick arches above. The ground floor windows are taller than those above. There are additional old small-paned sashes on the side and rear, as well as an old 12-pane two-light casement window on the ground floor to the east of the wing. The interior has not been inspected.

Local climate

Tregassa Farmhouse receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 88% 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 0.2°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.

More on this building

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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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