Nantddu is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 11 August 1993. House.
Nantddu
- WRENN ID
- stark-latch-azure
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 11 August 1993
- Type
- House
- Address
- Nantddu, Penybont, LD1 5SP
- OS grid reference
- SO 115 616
- Coordinates
- 52.24566, -3.29631
- Source
- Cadw listing
Description
Nantddu is a two-storey building with attics and a single-storey rear section that features a catslide roof. The main part is constructed of rubble stone and has a tin roof. It has two end stacks, one made of brick and the other a larger squared rubble stack with brick dressings. The building has a symmetrical arrangement of windows and a central door, which is a modern half-glazed door set beneath a canopy. The tall, thin timber casement windows are topped with flat voussoir heads. The rear section includes an enclosed porch and two dormers, as well as an original mullion window in the dairy.
Although not inspected recently, it is reported to be unaltered since the Royal Commission on the Ancient and Historical Monuments of Wales visit in 1969. At that time, they noted period interiors that included a good quality open-well staircase, scroll-stopped beams, large open fireplaces, and a moulded door surround.
Local climate
Nantddu sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 70% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 90% of listed buildings. Of these, 27 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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