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

Glanfeiglo

WRENN ID
tenth-obsidian-jackdaw
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
22 March 1993
Type
House
Address
Glanfeiglo, Cwm Nant Fyllon, Llanfyllin
OS grid reference
SJ 116 205
Coordinates
52.77542, -3.31068
Source
Cadw listing

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

Description

Glanfeiglo is a 17th-century building situated on a platform, featuring a main block with a later wing that is set at a right angle. The main block includes five crucks, with the end crucks originally designed as half-hipped. The central cruck is arch-braced and has cusping above the collar. The building was originally an open hall with an inner and outer room, but it has since had a fireplace and floor added, along with the additional wing.

The structure is one and a half storeys tall, with walls made of exposed square-panelled timber-framing that is three panels high. It has a slate roof with brick chimneys. The entrance front features two gabled dormers. The entrance doorway is topped with a gabled hood and is flanked by two windows on the left and a small square window on the right. The exposed crucks at each end have heavy collars, and the blades do not meet at an apex, reflecting the original half-hipped roof design. The south end has a casement window on each floor, while the opposite end features two casement windows on each floor.

To the right of the entrance, the parlour wing includes a projecting end chimney, a doorway with a gabled porch to the left, a gabled dormer, and a three-light small-pane casement window, along with a square casement window at the rear.

Local climate

Glanfeiglo 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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