Peterwell is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 19 May 1981. Stable block.

Peterwell

WRENN ID
distant-portal-ebony
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
19 May 1981
Type
Stable block
Address
Peterwell, Johnstown, Carmarthen
OS grid reference
SN 393 196
Coordinates
51.85211, -4.3337
Source
Cadw listing

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

Description

Peterwell is a substantial detached house built with unpainted roughcast and features a hipped slate roof with wide bracketed eaves. The roof has a central valley and two hips on the northwest elevation. The house is two storeys high and has a three-window south garden facade. The first floor includes 16-pane sash windows, with the outer ones featuring marginal glazing bars. The ground floor has two arched sashes, also with marginal glazing bars, radiating bars at the head, and raised stucco surrounds, along with a central flat-headed French window. The French window has a curved head across the top two panes, decorated spandrels, and is accessed by slate steps. The house has painted stone sills, tall red brick end stacks, and cast iron rainwater goods.

On the right side, there are two roughcast stacks, with no windows on the left end of the front range and a two-window range on the right. The timber doorcase has an open pediment supported by consoles, leading to a nine-panel door with a fanlight featuring radial and marginal glazing bars. Four stone steps lead to the door, which is flanked by wrought iron railings. To the right, there is a later canted bay window set on a roughcast semi-circular base, with a stone sill supporting three 12-pane sashes and a canted hipped slate roof. The upper floor has two 12-pane sashes with painted stone sills, the right one being smaller than the left. There is a single-storey range to the right, also unpainted roughcast, with a gabled slate roof and a 12-pane sash window in the centre. The house features cast iron gutters and a small end stack.

Inside, there are fielded-panelled nine-panel doors, an earlier 19th-century staircase with a lantern, curved landing doors, earlier 19th-century fireplaces, and panelled shutters in the reception rooms.

Local climate

Peterwell 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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  • 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
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