Mwyndy House is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 11 March 1991. House.

Mwyndy House

WRENN ID
lesser-doorway-marsh
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Cardiff West MP: Mr Alex Barros-Curtis (Lab)
Country
Wales
Date first listed
11 March 1991
Type
House
Address
Mwyndy House, Pontyclun, Pont-Y-Clun, Rhondda Cynon Taff, CF72 8PN
OS grid reference
ST 055 815
Coordinates
51.525, -3.36226
Source
Cadw listing

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

Description

Mwyndy House is a late Georgian two-storey house featuring a three-bay central range, which is the original part of the house, flanked by two higher bays on the left side and a single bay on the right. The walls are rendered and painted cream, and the roof is slate, with some replacement sections and three rendered ridge stacks. The entrance is marked by a central pedimented doorcase with fluted pilasters and a three-panel door. The windows are sash throughout, except for the additional bay on the right, which has a canted bay window beneath a three-light casement, and a similar canted bay window on the lower left.

On the right gable end, there are stone steps leading to a boarded cellar door on the left side, and a gabled half-lit porch on the right side, featuring double doors with round-headed panels. The left gable end has the stub wall of a former conservatory set back from the rear angle and a raked buttress. The rear of the house is mainly constructed of rubble stone and is dominated by an integral full-height gabled projection flanked by outshuts. Most of the rear windows have been altered, except for a hornless sash window on the right side above a blocked doorway, with a raked buttress set back from the right end.

Although not inspected, it is reported that the house retains some original detailing, including a Regency-style room on the west end with a tall timber chimneypiece featuring volute supports and a gilt overmantel. The lounge has an exposed timber bressumer over the chimney and gothic doors leading to the dining room, which has a Tudor stone chimneypiece. There is also some original panelling on the window splays and fielded doors upstairs.

Local climate

Mwyndy House sits in a wetter-than-average part of the UK, with an average of 1,150 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 21 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 8 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 — 4 transactions since 1995
  • 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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