Old School House is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 January 2001. School.

Old School House

WRENN ID
kindled-casement-violet
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
19 January 2001
Type
School
Address
Old School House, Abergwesyn, Builth Wells, Llanwrtyd Wells
OS grid reference
SN 859 530
Coordinates
52.16403, -3.66853
Source
Cadw listing

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

Description

The Old School House is a single-storey building oriented north-south, featuring a lower advanced gabled bay to the east. It is constructed from large blocks of random stone and has steeply pitched pan-tile roofs. Architectural details include a plinth with chamfered brick coping, quoins, and flat-arched brick heads over openings, with brick jambs and stone sills. The north gable end faces the road, and the front entrance consists of a planked door located on the north side of the east gabled bay, which is slightly set back. The roof pitch of the main range slopes down to create a porch over the entrance, supported by a timber pier.

The north end of the main range features a large multi-pane three-light wooden window with a transom. The apex of the roof projects with a hipped end, supported by two cusped brackets, which would have originally housed a bell that is now missing. The east gable end has a multi-pane cross window that matches the style of the north window. There are no openings on the west side. The south gable includes a nine-pane wooden window, beneath which is a blue brick lean-to with a pan-tile roof. The west side of the lean-to has a planked door with an overlight, set within a late 20th-century half-glazed porch. Attached to the east end of the rear lean-to is a small stone lean-to positioned at right angles, featuring a planked door on its east side under a segmental brick head.

No access to the interior was available at the time of inspection.

Local climate

Old School House sits in one of the wettest parts of the UK, with an average of 1,220 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 30 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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