Diana Cottage is a Grade II listed building in the Bridgend local planning authority area, Wales. First listed on 26 July 1963. Outbuildings.

Diana Cottage

WRENN ID
floating-rubblework-saffron
Grade
II
Local Planning Authority
Bridgend
Constituency
Bridgend MP: Chris Elmore (Lab)
Country
Wales
Date first listed
26 July 1963
Type
Outbuildings
Address
Diana Cottage, Merthyr Mawr
OS grid reference
SS 884 774
Coordinates
51.48538, -3.60845
Source
Cadw listing

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

Description

Diana Cottage is a one-and-a-half storey, cube-shaped cottage built from whitewashed rubble stone and topped with a thatch roof. The gable end features a large stepped external chimney stack, and to the right of this is a half-lit door that has been renewed in its original doorway. The right side wall includes an enlarged three-light casement window. At the rear gable end, there is a low single-storey projection offset to the right, also with a thatch roof, which has a small window at the lower left and an attic casement window above.

Inside, the original fireplace is notable for its stop-chamfered surround and a segmental-chamfered lintel.

Local climate

Diana Cottage sits in one of the wettest parts of the UK, with an average of 1,190 mm of rain a year. This makes it wetter than 91% 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 18 freeze-thaw cycles a year, fewer than 83% of listed buildings. Of these, 6 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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