Hirddol is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 20 March 1998. Sewer ventilation pipe. 2 related planning applications.

Hirddol

WRENN ID
steep-jamb-winter
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
20 March 1998
Type
Sewer ventilation pipe
Address
Hirddol, Leighton Farm, Forden, Forden with Leighton and Trelystan
OS grid reference
SJ 243 052
Coordinates
52.63936, -3.11925
Source
Cadw listing

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

Description

Hirddol is a pair of two-storey cottages built of brick with stone dressings. The cottages have a hipped slate roof with a central ridge stack. The front features two windows, with sash windows that have 12 panes in the upper storey and 16 panes in the lower storey, along with doorways at each end; the doorway on the left is modern, while the one on the right is planked. Above the right doorway, there is a mid-20th century casement window. The side walls also have similar sash windows. The rear elevation includes 9-pane sash windows under wedge lintels, with planked doors on both the left and right. The cottages retain their original rainwater goods, and there are brick walls of a small yard attached to the rear.

Local climate

Hirddol receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 55% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 24 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.
  • No sale records on file
  • 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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