Tremont and Trenarren Including Garden Walls is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 3 February 1986. House. 1 related planning application.
Tremont and Trenarren Including Garden Walls
- WRENN ID
- dark-porch-hawthorn
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Camborne and Redruth MP: Perran Moon (Lab)
- Country
- England
- Date first listed
- 3 February 1986
- Type
- House
- Address
- Tremont and Trenarren Including Garden Walls, Lower Cusgarne, Gwennap, TR4 8RL
- OS grid reference
- SW 759 408
- Coordinates
- 50.22479, -5.14276
- Source
- Historic England listing
Description
Tremont and Trenarren are a house and garden walls, now divided into two separate dwellings, dating to the early 19th century. A date stone of 1821 is visible on the east wall. The house is constructed of elvan ashlar to the garden and entrance fronts. It has a half-hipped scantle slate roof with brick chimneys over the side walls. The rear (northwest) has an asbestos slate roof with a brick chimney over the gable end, which is now a party wall with an adjoining house of the early to mid-19th century.
The original plan comprises two rooms flanking a central stair hall, with a passage behind the left-hand room, and a contemporary one-room rear service wing to the northwest, and a narrow service room to the rear of the right-hand room, with a further extension to the east. The house is two storeys high, with a symmetrical three-window garden front. The ground floor has original, taller 12-pane hornless sashes with internal shutters; the first floor has 16-pane hornless sashes. There is a plinth, granite sills, and shallow elvan arches with projecting keystones. The central doorway, approached by four granite steps, has a round-headed arch with a 6-panel door and a blind fanlight. The southwest side has a two-window entrance front with original 16-pane hornless sashes. A doorway under the second window has a circa late 19th-century two-panel door with an overlight and a late 19th-century wooden porch with stop-chamfered details and jettied pendants supporting a cornice with modillion brackets; the doorway was likely inserted in the late 19th century. The rear has an original round-headed sash window to the stairwell.
The interior is largely original, featuring an open-string stick baluster dog-leg stair with a mahogany handrail, 6-panel mahogany doors with inner bead moulding to the panels, moulded architraves with roundels in the corner blocks, and moulded plaster ceiling cornices. A granite ashlar garden wall runs along the west side, with the remainder being rubble.
Local climate
Tremont and Trenarren Including Garden Walls 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.
- Sale history — 8 transactions since 1996
- Related listed building consents — 1 application
- 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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