Lametton Barton is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 26 November 1985. Farmhouse.
Lametton Barton
- WRENN ID
- muted-basalt-hemlock
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- South East Cornwall MP: Anna Gelderd (Lab)
- Country
- England
- Date first listed
- 26 November 1985
- Type
- Farmhouse
- Address
- Lametton Barton, St. Keyne and Trewidland
- OS grid reference
- SX 245 610
- Coordinates
- 50.42312, -4.47152
- Source
- Historic England listing
Description
Lametton Barton is a farmhouse with origins dating back to around the mid-16th century, with substantial additions in the early 18th century and later remodelling in the late 18th century. The construction incorporates rubblestone, with slate hanging on the east front, although this has been removed on the right-hand side. The east wing has a scantle slate roof with gabled ends, while the west wing features a corrugated and cement-washed scantle slate roof with a hipped end. The central range possesses an asbestos slate roof on its south slope. A large slate-hung rubble stone hall stack is present with a brick shaft to the left of the central range. Rubblestone stacks with rendered brick shafts project from the gable ends of the east wing. The layout follows a ‘U’ shape, creating a courtyard plan.
The central range contains the remains of a hall room from the late 16th century, alongside a staircase projection to the rear. A dairy is located within a projecting wing on the west side, extended southwards to include an apple chamber. The east wing was remodelled and reoriented to become the front of the house, now featuring a single-depth plan with two rooms, a cross passage, and a staircase at the rear. The two-storey facade presents a symmetrical appearance with three windows. The ground floor displays two late 19th or early 20th-century three-light casements framing a partly glazed 20th-century door with a sloping hood. Three late 19th-century four-pane sash windows are positioned above.
Inside, the central hall features a large, cambered, chamfered timber lintel that spans the full width of the room on the north side, above a fireplace with later insertions for a boiler and oven. A doorcase leading to the staircase projection is visible on the north wall, featuring a timber shouldered arch dating back to around 1550, with a wide planked door and strap hinges. A stone winder staircase ascends within. The later wing on the east incorporates several 18th-century two and four-panelled doors with H L hinges, and a framed imperial stair. Significant 18th-century roof timbers are found above the central hall.
Historically, the manor was held prior to 1066 by Alfheah and later by Iovin. It subsequently belonged to Sir Robert Tresilian, chief justice of the King's Bench, before being granted by Richard II to John Hawley of Dartmouth, whose daughter brought it as part of her marriage to the Coplestones. The Coplestones reportedly sold Lametton, along with twelve other manors in Cornwall, to secure a royal pardon dated August 20, 1561. Lametton served as the principal residence of the Coplestones in Cornwall and later passed to the Harrises of Mount Radford and, by marriage, to the Rashleighs of Menabilly. Details of the property's history are further documented in J. Polsue Lake's Parochial History of Cornwall, published in 1874.
Local climate
Lametton Barton 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 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 9 freeze-thaw cycles a year, fewer than 92% 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.
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