Cefnllydan is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 31 January 1997. House. 1 related planning application.
Cefnllydan
- WRENN ID
- grey-finial-crow
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 31 January 1997
- Type
- House
- Address
- Cefnllydan, Tregynon, SY16 3QB
- OS grid reference
- SO 066 966
- Coordinates
- 52.55976, -3.37798
- Source
- Cadw listing
Description
Cefnllydan is a one and a half storey house built of unreinforced concrete, featuring a main range with a rear wing. The front has three windows and is finished with scribed render, showcasing gabled outer bays and a central dormer. The left bay forms the gable of the rear wing. The house has a slate roof with a central brick chimney. The windows are mullioned with timber frames, consisting of two-light windows in the dormer and gables of the outer bays, and three-light windows in the lower storey.
The centrally located porch is gabled and has a chamfered doorway, accessed by two steps. The front door is ledged and battened. To the left, the rear wing has a scribed render lateral wall, a concrete lean-to porch, and a ledged and battened back door. The rear of the house features timber framing that is largely hidden behind weatherboards, with small two-light casements in the gables and central dormer. Behind the main range is a random rubble lean-to with a slate roof, and behind the rear wing is a random rubble lean-to bakehouse with a brick stack.
The property was not accessible during the inspection in July-August 1996.
Local climate
Cefnllydan sits in a wetter-than-average part of the UK, with an average of 1,060 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.
It experiences an average of 43 freeze-thaw cycles a year, more than 81% of listed buildings. Of these, 23 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- 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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