Island House is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 24 September 1991. House.

Island House

WRENN ID
sleeping-paling-acorn
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
24 September 1991
Type
House
Address
Island House, St Clears, Carmarthen, St. Clears
OS grid reference
SN 278 164
Coordinates
51.82006, -4.49844
Source
Cadw listing

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

Description

Island House is a two-storey house with a basement, featuring a three-window range and a central entrance. The exterior is made of whitewashed rubble stone, topped with a pitched slate roof that has a tiled crest and red brick end stacks. The eaves are boxed, and the windows are small-paned sashes with marginal glazing bars, set in plain reveals with painted sills. The central bay has stone steps leading to a doorway with a four-panelled painted timber door and a narrow, traceried overlight, all set within an elliptical arched recess.

On the north gable, there are blocked openings beneath timber lintels, and a reset datestone inscribed "Job Brigstock 1798." The south gable features a curved bread oven, which is concealed by a lower whitewashed range that is single-storey and gable-fronted with a slate roof. To the left of the front gable end, there is a painted boarded timber door next to a 12-pane sash window, and a pair of similar sashes on the south side wall.

Although the interior has not been inspected, it is said to be well-preserved. A central hall leads to a timber staircase that boasts a finely-detailed Georgian handrail and carved tread ends that curve around a miniature stairwell. The ground floor room to the right has an elliptical arched recess and wall cupboards with marginal glazing bars on the open work doors. The remaining timberwork detailing is of good quality. There is a stone stair leading to a former cellar, which is now blocked. An upstairs window is engraved with "Brigstock was born 1782."

Local climate

Island House sits in one of the wettest parts of the UK, with an average of 1,250 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 95% of listed buildings.

It experiences an average of 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 6 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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