Bryn Towy Mansion is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 25 May 1988. Mansion.

Bryn Towy Mansion

WRENN ID
dusted-vestry-kestrel
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
25 May 1988
Type
Mansion
Address
Bryn Towy Mansion, Llangunnor
OS grid reference
SN 432 201
Coordinates
51.85753, -4.27737
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Bryn Towy Mansion is a late Georgian house featuring two storeys with cement render elevations and hipped slate roofs. The building has mostly wide eaves and includes cement render and pebbledash chimney stacks. The main part of the house has a square plan and a similar height wing set back to the left. It is predominantly fitted with 16-pane sash windows.

The main front has three windows with scribed render, a high plinth, a stringcourse above the ground floor, and a toothed valence below the eaves, which is also repeated on the side elevations. Later 19th-century alterations include a central arched headed hall window with marginal glazing bars and a broad, deep porch accessed by a tall flight of steps. The porch features paired iron columns and dentilled eaves. The entrance has panelled reveals and a four-panel door, with the upper panels being cusped, along with a fanlight and modern stained glass sidelights. Flanking the entrance are splayed bay windows added to the ground floor, which have slate roofs, wide bracket eaves, and horned sash windows.

The right-hand side of the house has four windows, with the stringcourse continuing from the front and one dummy window. The left-hand return side of the main front is slate hung and features one blocked window. The rear of the house has irregularly spaced windows, including one blocked window and a tall central arched headed stairwell window. There is a single-storey gable-ended extension at right angles to the main building. The two-storey wing on the left lacks the ornamental detail of the main range, featuring a two-window front (one dummy) and a half-glazed door, with a three-window rear facing a paved courtyard.

Inside, the mansion retains significant contemporary details, including six-panel doors and arched recesses. A tall archway in the hallway leads to the central staircase, which has turned balusters and ‘S’ shaped tread ends. There is a splayed recess for the stairwell window and a broad landing. The dining room features a recess in the rear wall with ‘in antis’ detached cabled columns and foliated capitals. The cellar is accessed by stone steps and has a partially cobbled floor with stone larder shelves.

Local climate

Bryn Towy Mansion sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 64% of listed buildings. Of these, 14 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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Nearby listed buildings

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  2. Former cottage on S side of Llangunnor churchyard Grade II 301 m
  3. Church of St Ceinwr Grade II 304 m
  4. Morris family tomb in Llangunnor churchyard Grade II 331 m
  5. Church of St David Grade II 1.0 km
  6. Garden walls at former Bishops Palace, (Carmarthenshire County Museum) Grade II 1.1 km
  7. Carmarthenshire County Museum (formerly Bishop's Palace) Grade II 1.2 km
  8. Lodge at former Bishops Palace (Carmarthenshire County Museum) Grade II 1.2 km
  9. Former Upper Tin Mills Grade II 1.2 km
  10. Former Blast Furnace and attached building Grade II 1.3 km