Gwaelodygarth House is a Grade II listed building in the Merthyr Tydfil local planning authority area, Wales. First listed on 22 August 1975. House.

Gwaelodygarth House

WRENN ID
solitary-fireplace-crow
Grade
II
Local Planning Authority
Merthyr Tydfil
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
22 August 1975
Type
House
Address
Gwaelodygarth House, Gwaelod-Y-Garth, Gurnos
OS grid reference
SO 047 072
Coordinates
51.75541, -3.38088
Source
Cadw listing

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

Description

Gwaelodygarth House is a building designed in a simple classical style, featuring a symmetrical exterior. It dates from the 18th century and has a two-storey front with three windows and a pedimental frontispiece, which includes a heraldic cockerel in the gable panel. The building is faced with thin Bath stone that has been painted, showcasing channelled rustication and plain bands above the ground and first-floor windows, along with a plinth band. The upper-level windows retain some Tudor dripmoulds, while the ground-floor windows are adorned with cornices on scrolled volutes.

There is a large architraved doorway beneath a cornice in the setback range to the right, and a second doorway beneath a modern porch in the setback range to the left. At the time of inspection, the building was gutted and roofless, with the upper floor of the left-hand range having collapsed. Modern brick chimneys are present, and earlier roughcast brickwork is visible behind the Bath stone facings. Some panelled window splays remain, although the small-pane sash windows have been removed.

Local climate

Gwaelodygarth House sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 54 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 30 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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