Merlin House is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 14 August 1995. A C19 House.
Merlin House
- WRENN ID
- night-garret-wax
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 14 August 1995
- Type
- House
- Address
- Merlin House, Talgarth, Powys
- OS grid reference
- SO 157 337
- Coordinates
- 51.99562, -3.229
- Source
- Cadw listing
Description
Merlin House is a mid-19th century house that has a rendered exterior and a slate roof. It stands three storeys tall and features two window bays, with the openings on the ground floor being offset. The entrance includes a panelled door set within a timber doorcase, topped by a decorative fanlight and a bracketed canopy. To the right of the entrance, there is a 16-pane sash window with a moulded architrave. The first floor has similar 16-pane sash windows, while the top floor features four 3-pane sash windows. The house also has a panelled eaves soffit and a brick stack on the gable.
Local climate
Merlin House sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 68% of listed buildings.
It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 29 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
- 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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