Pistyll Dewi Farmhouse is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 19 May 1999. Farmhouse. 2 related planning applications.

Pistyll Dewi Farmhouse

WRENN ID
dark-portal-vermeil
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
19 May 1999
Type
Farmhouse
Address
Pistyll Dewi Farmhouse, Carmarthen, Llanarthney, SA32 8JG
OS grid reference
SN 541 196
Coordinates
51.85648, -4.11906
Source
Cadw listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Pistyll Dewi Farmhouse is a stone-built farmhouse that has been rendered in grey cement and features a slate roof with a tiled ridge and three rendered end-chimneys. The newer west front is two storeys high and presents a symmetrical design with two units and a central entrance, along with a lower-roofed additional unit to the left that may be slightly later in date. A larger chimney is located at the north gable. The main part of this elevation has sash windows with nine panes above and twelve panes below, while the additional unit on the left has four-pane sash windows both above and below. The south elevation features a chimney breast that projects on stone corbels at first floor level.

The rear wing on the east elevation includes one door and one window, with a twelve-pane sash window and a plain door that has an overlight. There are also two small attic sash windows in the east-facing gable, and a small lean-to shed is situated at the north. Inside, there is a dogleg staircase located in a narrow bay off the rear wing. The original roof trusses remain intact and are of the collar beam type with lapped dovetail joints.

Local climate

Pistyll Dewi Farmhouse sits in one of the wettest parts of the UK, with an average of 1,350 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 56% of listed buildings. Of these, 16 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 1 transaction since 2024
  • Related listed building consents — 2 applications
  • 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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  10. Former Llanarthney Railway Station with single Platform Grade II 1.1 km