Farm building at Gribin is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 5 August 2004. Farm building.

Farm building at Gribin

WRENN ID
buried-lancet-sedge
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
5 August 2004
Type
Farm building
Address
Farm building at Gribin, Cemmaes, Glantwymyn
OS grid reference
SH 850 061
Coordinates
52.6405, -3.7009
Source
Cadw listing

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

Description

This is a five-bay farm building with some surviving rubble stonework on the south and northwest sides. It has a hipped roof, with the southern pitch covered in old slates, while the rest is covered in corrugated iron sheeting. The western side is primarily made of corrugated iron sheeting, featuring a planked door on the left and split doors towards the center. The northern end also has corrugated iron sheeting on a breeze block plinth. The southern end, visible from the interior, is constructed of stone and includes a loft hatch and two small openings to the lower storey. Attached to the eastern front is a full-length, full-height lean-to made of breeze blocks with a corrugated metal roof; it has three doors, which are either split or planked.

Inside, the five-bay layout showcases good timberwork, with pegged joints and carpenter's marks. The tie-beam trusses feature diagonal struts, and the tie beams are supported by short braces connected to the wall posts. In the central bay, there are vertical posts beneath the tie beams, which may have been linked to former partitions. Some box paneling from the original eastern wall remains inside the lean-to, although the panels are now open. The hipped roof was added later, with the ridges of the second and fifth trusses supported by raked, unworked timber posts.

Local climate

Farm building at Gribin 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 87% of listed buildings.

It experiences an average of 46 freeze-thaw cycles a year, more than 87% of listed buildings. Of these, 26 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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