Trewanta Hall is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 10 May 1989. Farmhouse.
Trewanta Hall
- WRENN ID
- seventh-keystone-scarlet
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- North Cornwall MP: Ben Maguire (LD)
- Country
- England
- Date first listed
- 10 May 1989
- Type
- Farmhouse
- Address
- Trewanta Hall, Lewannick
- OS grid reference
- SX 264 802
- Coordinates
- 50.59567, -4.45294
- Source
- Historic England listing
Description
Trewanta Hall is a farmhouse dating to 1722, although it likely has earlier origins. It is constructed of roughly coursed ashlar stone on the front elevation and stone rubble elsewhere, with a slate roof featuring gable ends. The stacks are of stone rubble, with a rendered shaft to a side lateral stack at the rear.
The original layout is uncertain. The front range includes a central entrance and cross passage, flanked by two principal rooms, each heated by an end stack. A 18th-century stair projection extends from the rear of the cross passage, adjoined by a dairy on the left and a one-room kitchen wing on the right. It is thought that the rear wing and right-hand room may be remnants of an earlier house, remodeled in 1722.
The two-storey, symmetrical front elevation has five windows and a central 19th-century glazed porch. The window openings have dressed stone arches, and most of the windows are original 18th-century mullion and transom windows. Two 20th-century replacement windows match the originals on the left, while two 18th-century windows remain on the right. A datestone reading "1722" is positioned above the entrance. Five 18th-century windows are visible on the first floor.
A three-light granite mullion window illuminates the left-hand side wall of the dairy, and a large four-light granite mullion window lights the stair projection on the rear. A 19th-century outshut runs along the right-hand side, with access to the kitchen wing via a hollow chamfered granite frame with curved diagonal stops.
Inside, the left-hand room, likely a parlour, retains an 18th-century two-panel door and a small fireplace with a roughly chamfered granite surround. The right-hand room features a 20th-century grate, concealing a very large unmoulded granite lintel that originally spanned the room and extended above first-floor level. The wing to the rear right has a blocked fireplace. The 18th-century stair, located behind the cross passage, has square newels with small flat bun finials, stick balusters, and a deeply moulded, ramped rail.
Local climate
Trewanta Hall sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 7 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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- No EPC on record for this property
- 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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- Gatepiers to East of Trewanta Hall
- Cottage in Yard to North of Trewanta Hall
- Threshing Barn on North Side of Yard at Trewanta Hall
- Trewanta Park
- Terrace of Houses at Kellys House
- Milestone on N side of B3257, circa 33m NW of Cleth Cottage
- Trevadlock Farmhouse on North East of Settlement at Trevadlock
- East Entrance to Trevell Farmhouse
- Milestone on A30 Slip Road to Lewannick (Ngr Sx2668881285)
- North Lodge and Gate Piers to Front