Barn at Abersefin is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 27 May 2005. Barn.

Barn at Abersefin

WRENN ID
floating-render-river
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
27 May 2005
Type
Barn
Address
Barn at Abersefin, Penpont, Trallong, Powys
OS grid reference
SN 970 291
Coordinates
51.95155, -3.50001
Source
Cadw listing

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

Description

The barn at Abersefin is a 19th-century structure built from rubble stone and topped with a slate roof. The roof is half-hipped to the north and hipped at the southwest angle, with a short return to the southeast. On the west side, there are two large barn door openings featuring cambered red brick heads and double doors. To the left of the left opening, there are two loops, and lean-tos have been added between the openings and to the right of the right opening. The north end includes a loft door with a vent loop on each side. The southeast return has windows on two floors along the south wall.

Local climate

Barn at Abersefin sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 83% of listed buildings.

It experiences an average of 49 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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  • 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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