Tregassow House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 28 February 1952. A Late C17 Farmhouse. 2 related planning applications.
Tregassow House
- WRENN ID
- winding-facade-dew
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Truro and Falmouth MP: Jayne Kirkham (Lab)
- Country
- England
- Date first listed
- 28 February 1952
- Type
- Farmhouse
- Address
- Tregassow House, St. Erme, TR4 9BL
- OS grid reference
- SW 854 490
- Coordinates
- 50.30225, -5.01365
- Source
- Historic England listing
Description
Tregassow House is a late 17th-century farmhouse, believed to have been built in 1692, incorporating elements from a 16th-century structure. It features coursed killas ashlar stone with a slate roof, and a later addition from 1973 that is pebbledashed with a tiled roof. The layout includes a central entrance leading to a wide hall, with a parlour on the right and a drawing room on the left. The living kitchen is located in the lower ground floor of the rear wing on the right, and there is a narrow rear range with a staircase opposite the front entrance. The house has two storeys and a basement on the right side.
The central entrance has a wide six-panelled door set in a heavy frame, topped with a dentilled pediment supported by consoles. The front features twelve-paned sash windows in boxes, made with much crown glass, and radial stone lintels. There is a moulded plinth and eaves, while the west gable displays tripartite sashes with chamfered timber lintels. Above the lean-to stair roof, there are two-light timber windows in a half-hipped gable.
Inside, there is a notable staircase from the late 17th to early 18th century, some panelling, and a timber fire surround in the drawing room. The living kitchen boasts a large open fireplace with a moulded surround and a cloam oven, along with remnants of a Cornish range built into the left side. The site is said to have been occupied by John Tregassow around 1320. The current house was constructed by Thomas Coke, who acquired the funds through a modest legal practice, and he was the son of John Coke of Trerice, who was involved in tin smelting at the Godolphin blowing house. The original plan included two rear wings, which were never built.
Local climate
Tregassow House receives an average of 890 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% 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
- Related listed building consents — 2 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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