Tyddyn is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 10 March 1953. House.
Tyddyn
- WRENN ID
- hallowed-pilaster-moth
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 10 March 1953
- Type
- House
- Address
- Tyddyn, Oakley Park, Llandinam
- OS grid reference
- SN 989 871
- Coordinates
- 52.47331, -3.48867
- Source
- Cadw listing
Description
Tyddyn, which includes Tyddyn Cottage, is a building made of limewashed brick with a slate roof, dating from the late Georgian period. It stands three storeys tall and has three bays, with a symmetrical main elevation. The central feature is a part-glazed door set within a panelled doorcase, accompanied by a later trellis porch. On either side of the entrance are canted bay windows from the late 19th century, which have dentilled cornices and flat lead roofs. The first floor features 16-pane sash windows with painted wedge lintels and sills, while the top floor has 8-pane sash windows. The building has modillion eaves and gable stacks, along with a three-storey rear wing that has a gable stack.
The cottage, which extends from the rear wing, is two storeys high and constructed of painted brick with a slate roof. It has two bays, with a central door located in a brick porch that features a pointed arch. The cottage also has two-light diamond-paned iron windows with cambered heads and a stack that is built against the stack of the rear wing of the house.
Local climate
Tyddyn sits in one of the wettest parts of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 81% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 91% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2024
- 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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