Brynhafren is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 10 April 1989. House.

Brynhafren

WRENN ID
late-doorway-harvest
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
10 April 1989
Type
House
Address
Brynhafren, 2 Penygreen Road, Llanidloes
OS grid reference
SN 952 845
Coordinates
52.44894, -3.54298
Source
Cadw listing

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

Description

Brynhafren is a former pair of back-to-back houses that were part of a longer symmetrical terrace next to Spring Mill. This three-storey building is constructed of red brick with a slate roof, featuring bracket eaves and a blue brick chimney stack. The front of the building has one window for No 1 and two windows for No 2; the second floor has 12-pane sash windows, while the first and ground floors have lintels and keystones, with No 1 having 16-pane windows and No 2 having modern windows. The mid-20th century doors have bracket cornices, and steps lead up to the right of the center, leading to a round-arched entry into a tunnel passage with a four-panel door.

The left gable end is rendered and was rebuilt after the rest of the terrace was demolished sometime between 1963 and 1981, while the right gable end is made of shale. The brick-walled tunnel passage has a door to the left midway along and another door to the right at the end. The rear elevation is made of shale, partly rendered, and features small pane metal frame windows on the second floor, which appears to have been a weaving loft. This loft has a boarded door that is accessed from the high rear garden by an elevated walkway.

Local climate

Brynhafren sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.

It experiences an average of 53 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 32 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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  7. Upper White House Grade II 35 m
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