Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm) is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 30 April 1997. Police station. 1 related planning application.
Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm)
- WRENN ID
- crumbling-plinth-starling
- Grade
- II
- Local Planning Authority
- Caerphilly
- Constituency
- Newport West and Islwyn MP: Ruth Jones (Lab)
- Country
- Wales
- Date first listed
- 30 April 1997
- Type
- Police station
- Address
- Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm), Blackwood, NP12 1BZ
- OS grid reference
- ST 177 982
- Coordinates
- 51.67703, -3.19148
- Source
- Cadw listing
Description
Gelli-Dywyll Farmhouse, also known as Cwmgelli Farm, is a 2½-storey farmhouse featuring grey roughcast walls, a steep corrugated metal roof, and roughcast stacks. The main part of the house is situated on a sloping site and includes a rear kitchen wing that is set back from the uphill end, along with a lower extension at the downhill end. The main range has a rendered stack on the right and a gable hall stack on the left. The house faces west, with its entrance located in a gabled porch that is offset to the right side, featuring a segmental-headed doorway. To the left of the entrance is a small-pane sash window that was added in the 19th century. On the upper storey, there is a 2-light wooden casement window on the right and a wider casement window on the left, both of which were inserted in the 20th century. The attic includes a single roof dormer positioned to the right of centre. The lower extension has a stack on the right end, an inserted casement window in the upper storey, and two windows on the lower storey. The uphill (north) gable end features an external stack that has been modified to incorporate a trough, with small attic windows on both the left and right sides of the gable. The rear wing has a single ridge stack, and its rear gable end includes a boarded opening on the right side in the lower storey, along with an inserted 3-light window in the attic. The rear of the downhill extension has a single-storey projection, with an inserted window to the left. The lower (south) gable end features a boarded door on the right and a lean-to on the left. The property was inaccessible at the time of inspection.
Local climate
Gelli-Dywyll Farmhouse (also known as Cwmgelli Farm) sits in a wetter-than-average part of the UK, with an average of 1,090 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 79% of listed buildings.
It experiences an average of 44 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 21 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
- No sale records on file
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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- Lower terrace revetment and gates in garden to S of Maes Manor
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