Retanning Farmhouse is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 20 December 1988. House. 1 related planning application.

Retanning Farmhouse

WRENN ID
leaning-transept-dock
Grade
II
Local Planning Authority
Cornwall
Constituency
St Austell and Newquay MP: Noah Law (Lab)
Country
England
Date first listed
20 December 1988
Type
House
Address
Retanning Farmhouse, St. Mewan, PL26 7HH
OS grid reference
SW 979 504
Coordinates
50.31886, -4.83954
Source
Historic England listing

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

Description

Farmhouse, now a house, dating from the early to mid-19th century, with later 19th-century additions and subsequent alterations. The construction is primarily stone rubble with granite and brick dressings. The roof is covered with asbestos slate and slate, featuring ridge tiles and gable ends. Gable end stacks have brick shafts, and there is an axial stack with a rendered shaft. The rear elevation incorporates rubble and cob construction.

The original building comprises a two-room plan with a central entrance, a room to the right, and a room to the left, each of equal size and heated by a gable end stack. There is an integral, unheated outshut to the right of the main building, and a later 19th-century outshut to the left. In the later 19th century, a single-room addition was constructed at the right end, with its own gable end stack.

The original block is two storeys and has a symmetrical two-window front. On both the ground and first floors, to the right and left, are 19th-century 16-pane sash windows with cambered dressed stone arches at ground floor level. A central plank door is set within a 20th-century glazed and gabled porch, also with a cambered stone arch. The 19th-century addition to the right features two ground-floor 16-pane sashes with segmental brick arches, and one similar sash at the first floor. The left end has a large external stack. The right end features a curved oven at the base of the stack. Ground floor to the right has a 2-light 5-pane 19th-century casement and at first floor a 2-light 4-pane 19th-century casement, both with segmental brick arches. At the rear, the single-storey outshut to the right has plank doors at the inner and outer sides. Ground floor to the left has a 2-light 4-pane casement and a small 19th-century 4-pane sash at first floor to the left. The 19th-century addition to the left features a 2-light 5-pane casement with a segmental brick arch, and a plank door with a segmental brick arch; the first floor has a 2-light 5-pane 19th-century casement.

Inside, there are 19th-century ceiling beams at ground floor level. The room to the left was likely originally the kitchen, whilst the parlour is located to the left, containing a 19th-century grate in the fireplace.

Local climate

Retanning Farmhouse receives an average of 910 mm of rain a year. This makes it wetter than 68% 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 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 0.2°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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  • 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
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