The Old House is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 23 October 1980. House.

The Old House

WRENN ID
hollow-pediment-rook
Grade
II
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
23 October 1980
Type
House
Address
The Old House, Llantwit Major, Cowbridge / Y Bont-Faen
OS grid reference
SS 967 690
Coordinates
51.41088, -3.48612
Source
Cadw listing

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

Description

The Old House is a Grade II listed building featuring stone rubble walls, with the front wall whitewashed. It has a Welsh slate gabled roof, which includes 19th-century stone stacks with weathered tops at each end and to the left of center.

On the front elevation, starting from the south-west end, there is a three-light wood casement window above, and below it, a ledged door in a projecting stone porch that has been added since the building was listed in 1982. This door dates from the time of the left-hand extension, as the original entry to the house was through the gable. Slightly to the right on the first floor, there is another three-light casement window, and on the ground floor, a three-light casement window with an oak lintel, which has an internally located relieving arch above it. The right return features a two-storey lean-to extension, while the left return has a window on each floor at the rear.

The rear elevation includes a lean-to extension that nearly spans the full width of the building, topped with a corrugated sheeting roof that has a much lower pitch than the main roof, rising just under the eaves.

The interior was not inspected during the resurvey. However, the previous list description notes that the left-hand part of the house has straight joists, while the older or north-east part features a ground floor ceiling with three chamfered beams and stopped and chamfered joists. There is a fireplace with stairs to the north, leading to a doorway with an arched head and a small blocked single light window. On the first floor, there is a garderobe at the north-east end. The lean-to extensions are located at the rear and to the right-hand side. The RCAHMW confirms the exceptional survival of early wall coloring representing a dado, and also mentions a latrine in the north-east corner of the first-floor room. The roof structure consists of principal rafters with a single truss, a collar, and two tiers of purlins.

Local climate

The Old House sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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
  • Sale history — 1 transaction since 2010
  • 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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