Barn and Adjoining Piggery at Higher Trewern is a Grade II listed building in the Cornwall local planning authority area, England. Barn, piggery. 2 related planning applications.

Barn and Adjoining Piggery at Higher Trewern

WRENN ID
hollow-lantern-meadow
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Type
Barn, piggery
Address
Barn and Adjoining Piggery at Higher Trewern, TR20 8PB
OS grid reference
SW 428 321
Coordinates
50.1337, -5.59973
Source
Historic England listing

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

Description

The barn and adjoining piggery at Higher Trewern, dating from the early 19th century, are constructed from granite rubble with granite dressings. They feature hipped roofs covered in grouted scantle slate, with a half-hipped roof over the barn and a gable end for the piggery. The barn has a rectangular plan that includes a central waggon shed, flanking shippons, and a large granary on the first floor. There is a later 19th-century lean-to at the left end and an extension at the rear right. The piggery, located at the far right, was built in two phases and is a single-storey structure.

The exterior of the barn is nearly symmetrical with a two-window south front, featuring a wide central waggon doorway and a loading/winnowing doorway above it. Each flanking shippon has a central doorway with a first-floor window above, a small window opening to the left of the doorway, and a ventilator slit to the right. The right-hand doorway has been converted into a window. The barn also has old ledged doors and some old shutters. The piggery front includes four piggery doorways, along with a doorway and window that likely served a swill kitchen on the left. The interior has not been inspected.

Local climate

Barn and Adjoining Piggery at Higher Trewern sits in a wetter-than-average part of the UK, with an average of 970 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. 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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  • No EPC on record for this property
  • Sale history — 4 transactions since 1995
  • 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
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