Barn at Lower House Farm is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 4 March 1952. Barn.

Barn at Lower House Farm

WRENN ID
rooted-panel-foxglove
Grade
II
Local Planning Authority
Monmouthshire
Constituency
Monmouthshire MP: Catherine Fookes (Lab)
Country
Wales
Date first listed
4 March 1952
Type
Barn
Address
Barn at Lower House Farm, Mamhilad, Pontypool, Goetre Fawr
OS grid reference
SO 308 033
Coordinates
51.72422, -3.00323
Source
Cadw listing

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

Description

The barn at Lower House Farm is a Grade II listed building constructed from random local sandstone rubble and topped with corrugated sheet roofs. The main facade features a blocked entrance where the waggon doors once were, now containing late 19th century or early 20th century plain doors made of vertical boarding with an elliptical head. To the left, there are two enlarged openings fitted with modern 3 over 6 pane windows, and to the right, a similar 3 over 3 pane window. The lean-to on the right has an older plank door, possibly from the 18th century.

The gable of the barn displays a 17th century 4-light unglazed 'window' with diamond-set oak mullions, although one mullion is missing, and above this is a slit vent. The left gable is completely obscured by a later granary addition. Below, there is an open cart shed with the front of the granary now covered in modern sheeting. The gable end features a stone staircase leading up to the granary door, which is a plank door with a timber hood above it. The rear wall is blind.

Inside, the barn has a principal rafter roof supported by three tiers of purlins, while the lean-to has a staggered purlin roof with secondary rafters, all of which are intact. The interior of the granary has not been seen.

Local climate

Barn at Lower House Farm receives an average of 940 mm of rain a year. This makes it wetter than 73% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 72% of listed buildings.

It experiences an average of 41 freeze-thaw cycles a year, more than 79% of listed buildings. Of these, 19 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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  • 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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  5. West wall to churchyard of Church of St Illtyd with stile, gatepiers and postbox Grade II 308 m
  6. Former Mamhilad School Grade II 342 m
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