Barn to East of Bryn Mawr is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 5 April 1993. Barn, cowshed, granary, milking parlour.
Barn to East of Bryn Mawr
- WRENN ID
- carved-bonework-elder
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 5 April 1993
- Type
- Barn, cowshed, granary, milking parlour
- Address
- Barn to East of Bryn Mawr, Llandysilio
- OS grid reference
- SJ 252 188
- Coordinates
- 52.76244, -3.10993
- Source
- Cadw listing
Description
The building known as the Barn to the East of Bryn Mawr is an early 19th-century structure consisting of three bays that are positioned down a slope, with the lower end bays being storeyed. It is constructed of stone rubble on a plinth, featuring some dressed quoins and door jambs, slit ventilators throughout, a dentil eaves course, and a slate roof. The central bay has two opposing doors with part brick and part stone jambs, topped with distinctive depressed four-centred arch heads. There are two pitching openings that have cambered brick heads and plank shutters. The upper bay contains a split-plank door under a cambered brick head, while the lower bay features a wide split-plank door under an inserted flat yellow brick head.
Adjacent to the barn are the cowsheds and granary, which form a right angle with the barn. These structures are also early 19th-century and made of rubble stone, with a dentil eaves course and slate roof. The cowsheds have cambered brick heads above two ground floor doors; the right door has a depressed arch with some dressed stone jambs. There is a granary loft door located under the eaves, accessed by brick and concrete steps. A gable window is set under a cambered brick head, and there is a rear loft opening with later brick jambs. A rubble stone lean-to is present at the gable end, also with a slate roof.
The milking parlour, which was formerly stables, adjoins the cowsheds and dates from the 19th century. It is two storeys high, built of brick with a dentil eaves course and slate roof, featuring diamond-shaped perforated brick ventilators. Inside, there are two split plank doors, a loft pitching door, and a loft window.
Inside the barn, the roof structure may have been renewed and features two shouldered king-post trusses with strut braces and a cambered tie-beam. The bay partitions include a central post and two diagonal braces. The central bay has a granary tile floor, while the lower bay has a brick floor.
The interior of the cowsheds showcases a king post roof truss made from re-used timbers, and the cowshed ceiling incorporates a massive deep chamfered beam.
Local climate
Barn to East of Bryn Mawr receives an average of 850 mm of rain a year. This makes it wetter than 58% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 66% of listed buildings.
It experiences an average of 41 freeze-thaw cycles a year, more than 78% of listed buildings. Of these, 22 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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