Llwynhelig House is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 8 July 1966. House. 4 related planning applications.
Llwynhelig House
- WRENN ID
- white-lime-plover
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 8 July 1966
- Type
- House
- Address
- Llwynhelig House, Llandeilo, SA19 6AZ
- OS grid reference
- SN 619 235
- Coordinates
- 51.89331, -4.00767
- Source
- Cadw listing
Description
Llwynhelig House is a two-storey building, likely dating from the mid-19th century, with a later connecting range and wing. The main front is of roughcast rubble and features a hipped slate roof and rendered chimney stacks, with a coved eaves cornice. It has a three-window arrangement, with small-pane sash windows; the ground floor windows contain 20 panes. A central round arched entrance has panelled reveals and a fanlight above a recessed panelled door. A similar three-window return elevation incorporates a verandah supported by cast-iron columns. The mid-19th century wing has deep eaves, ornate bargeboards, and further small-pane windows.
Local climate
Llwynhelig House sits in one of the wettest parts of the UK, with an average of 1,400 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 39 freeze-thaw cycles a year, more than 74% of listed buildings. Of these, 18 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 — 2 transactions since 2007
- Related listed building consents — 4 applications
- 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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Nearby listed buildings
- Stable Block at Llwynhelig House
- Red Cottages, Dynevor Park
- Red Cottages, Dynevor Park
- Byre Range (Formely Stabels) to NE of Dynevor Home Farmhouse
- Corn Barn to N of Dynevor Home Farmhouse
- Dynevor Home Farmhouse (formerly Newton Farmhouse)
- Ice House to the N.of Dynevor Castle (Newton House)
- Low Stone Walls & Gates to Ha-Ha surrounding Plas Dinefwr
- Plas Dinefwr, including SW Screen wall
- Fountain in Centre of terraced garden on W side of Plas Dinefwr