Nantddu is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 25 February 1999. Farmhouse.
Nantddu
- WRENN ID
- little-panel-wren
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 25 February 1999
- Type
- Farmhouse
- Address
- Nantddu, Brynhyfryd, Llandovery, Llanfair-Ar-Y-Bryn
- OS grid reference
- SN 771 407
- Coordinates
- 52.05104, -3.79247
- Source
- Cadw listing
Description
Nantddu is a farmhouse built from whitewashed rubble stone, featuring a slate close-eaved roof and three rendered stacks, with the largest stack located on the left. The building has two storeys and a four-window range, consisting of a three-window main section on the left with a central door, and a one-window range on the right, which does not show any obvious joint between the two sections. The windows date from around 1900 and are horned 5-pane sashes. The ground floor window heads have brickwork, possibly indicating that the windows have been widened, and the broad doorway has a panelled door. At the rear, there is a full-length outshut with six small windows, and a 20th-century lean-to conservatory on the left.
The farmhouse has a three-room plan, likely a typical centre entry layout, with the upper end originally serving as a byre or addition, now used as a parlour. However, there is no clear evidence of any addition at the upper end. The lower end room features a large timber-lintel fireplace marked WW1800, with partitions removed to create a former entrance hall and a stick baluster dog-leg staircase. The centre room also has a timber lintel above its fireplace. The main part of the ground floor includes three substantial beams. The rear dairy in the outshut retains some original slate fittings, and the upper end room has a small fireplace with stone voussoirs.
Local climate
Nantddu sits in one of the wettest parts of the UK, with an average of 1,280 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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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