Talwrn Farmhouse is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 22 March 1993. Farmhouse.

Talwrn Farmhouse

WRENN ID
high-banister-plover
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
22 March 1993
Type
Farmhouse
Address
Talwrn Farmhouse, Cwm Nant Fyllon, Llanfyllin
OS grid reference
SJ 103 219
Coordinates
52.78723, -3.33138
Source
Cadw listing

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

Description

Talwrn Farmhouse is a 17th-century building featuring a central timber-framed block that runs roughly east to west. To the right (west) is a rendered crosswing, while to the left (east) is a rubble crosswing. The central block includes a large brick chimney on the left and has four tiers of square panels with brick infill. The first floor has three square windows with modern glazing, and the ground floor has an entrance door offset to the right, flanked by a window on each side, also with modern glazing. The left side features the rubble crosswing, and the right side has the rendered crosswing, which includes a projecting rendered chimney on the right return.

Inside, to the left of the entrance door, there is a post and panel partition, and heavy joists are visible in the lobby. A rear doorway aligns with the front doorway. The main room contains some heavy beams and joists, along with a large fireplace and a timber-framed partition. The room in the eastern crosswing features heavy ovolo chamfered stopped beams and crossbeams. The first floor of the western crosswing has exposed timber-framed partitions.

Local climate

Talwrn Farmhouse sits in a wetter-than-average part of the UK, with an average of 960 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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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