Derry Hall is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 11 June 2001. Country house.

Derry Hall

WRENN ID
noble-brick-coral
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
11 June 2001
Type
Country house
Address
Derry Hall, Llanfihangel Abercowyn, Carmarthen, St. Clears
OS grid reference
SN 293 178
Coordinates
51.83326, -4.47844
Source
Cadw listing

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

Description

Derry Hall is a two-storey country house with a basement, featuring a formal three-window front. The exterior is finished in painted stucco with a slated roof and red brick end stacks. The front of the house includes a full-length timber veranda with a pitched, tiled roof supported by chamfered timber pillars. At the center, there are paired panelled timber doors with glazed upper panels set in a recessed light timber doorcase. Each floor has six-pane painted timber sash windows, with narrower outer panes and slate sills. The eaves are plain boarded.

On the right end, there is a gable window that matches those on the front. To the right of center on the ground floor, there is a step leading to a later 20th-century painted timber door with a glazed upper panel and overlight. To the far right, there are basement and first-floor windows, which are later 20th-century timber four-pane windows with slate sills. The left gable end wall is blank. Both gables feature decorative scrolled timber barge boards.

The irregular three-bay rear of the house has three storeys, with landing windows in the center. The upper storey has a tall, margin-glazed center sash flanked by six-pane sashes. The middle storey has a similar six-pane sash for the stair, set lower than the matching flanks. The basement has a pair of later 20th-century four-pane windows on the left, with the inner window being internally blocked. There is a later 20th-century painted, boarded timber door in the center bay, and a six-pane, marginal-glazed timber sash in the right bay.

The interior has not been inspected, but it is suggested that there is a wide timber staircase in the center.

Local climate

Derry Hall 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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