Trevaughan House is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 19 May 1981. Garden.

Trevaughan House

WRENN ID
guardian-pilaster-violet
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
19 May 1981
Type
Garden
Address
Trevaughan House, Carmarthen
OS grid reference
SN 397 211
Coordinates
51.86617, -4.32836
Source
Cadw listing

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

Description

Trevaughan House is an early to mid-19th century house constructed in painted stucco, featuring slate gabled roofs and brick-built stone end stacks. The building is two stories high with a basement and has a three-window range.

The east gable end is designed as a façade, showcasing an open pedimental gable with paired angle pilasters. At the center, there is a giant arched recess that includes a long arched window on the first floor with small panes and radiating glazing bars at the top. Below this, there is a matching arched doorway with a shallow hood supported by brackets, featuring a 20th-century glazed door with a plain fanlight and a simple raised surround. Flanking the entrance are three-sided square bays topped with hipped slate roofs, which contain 20th-century tripartite plate glass sashes at the front and narrow lights on the sides.

The north side of the house is roughcast and has three windows, with a central low door beneath a large arched stair light that also has radiating bars at the top. The first floor features twelve-pane sash windows with stone sills on either side, and to the right on the ground floor, there is a canted bay with a hipped slate roof and a twelve-pane sash window at the front, along with narrow eight-pane windows on the sides. The property has cast iron rainwater goods. There is a low two-storey added section that overlaps the right corner, which has a hipped roof and sash windows on each floor of the return wall.

The south garden front is two stories and a basement, with a lower extension to the left that is stuccoed with raised angle strips. It has a close-eaved roof, with two sashes above that have marginal bars, and on the ground floor, there are two French windows with a blank center opening in a hipped terraced veranda that has steps at each end. The veranda is supported by four openwork iron supports and has a slate hipped roof, with the interior boarded. There is a single opening to the basement beneath the veranda, and the lower extension to the left features one window with a two-storey late 19th-century full-height square projecting center bay. This bay has horned timber tripartite sashes at the front and narrow glazed sides, with wide cornices above each floor. To the right of the bay, a flight of steps leads to the veranda, which is covered by a slate hood on large timber brackets.

Inside, the hallway has a moulded cornice and six-panel doors leading to the main rooms. The staircase features a scrolled open string, stick balusters, and a continuous handrail.

Local climate

Trevaughan House 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.

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