Druid's Altar is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 November 1998. Cottage.
Druid's Altar
- WRENN ID
- veiled-lantern-furze
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 19 November 1998
- Type
- Cottage
- Address
- Druid's Altar, Llangenny, the Vale of Grwyney, Powys
- OS grid reference
- SO 238 178
- Coordinates
- 51.85371, -3.10631
- Source
- Cadw listing
Description
Druid's Altar is a two-storey cottage with an added higher cross-wing on the left side, featuring Tudor-Gothic details. The cottage is constructed of random rubble painted white, while the cross-wing is made of coursed rubble. The slate roofs are adorned with cusped barge boards and pendant finials, and the wing has two external brick stacks on the right side wall that rise above the eaves.
The original cottage has two windows, which are 19th-century casements. In the upper storey, these windows are positioned beneath the wall plate on the left, with a segmental head, and there is a gablet on the right. The doorway on the lower right has a segmental head and a replaced half-lit door. The wing features openings with dressed limestone surrounds, including mullioned windows with hood moulds. The front gable end displays a two-light window in the upper storey under a four-centred head, complete with head stops on the hood moulds. The lower storey has a four-light window with a panel-traceried head and a hood mould.
On the left side wall, which overlooks the valley, there is a central gabled bay with a two-light window that incorporates original wooden casements in the upper storey. Below this, a projecting, embattled porch features a flattened elliptical arch leading to a doorway with a Tudor head and a half-lit door that has Gothic tracery. To the right of the gabled bay is another two-light window. The rear gable end mirrors the front, while the right side wall contains a two-light window positioned behind the earlier cottage. The rear of the cottage has two windows, with two- and one-light casements in the upper storey, a two-light window on the lower right, and an added projection on the lower left.
The building was not inspected at the time of the survey in December 1997.
Local climate
Druid's Altar sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 27 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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