Trefnant School House is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 9 January 1998. School house.
Trefnant School House
- WRENN ID
- endless-chamber-evening
- Grade
- II
- Local Planning Authority
- Denbighshire
- Constituency
- Clwyd North MP: Gill German (Lab)
- Country
- Wales
- Date first listed
- 9 January 1998
- Type
- School house
- Address
- Trefnant School House, Denbigh
- OS grid reference
- SJ 050 705
- Coordinates
- 53.2238, -3.42351
- Source
- Cadw listing
Description
Trefnant School House is a schoolmaster's house built in a restrained Tudor-Gothic style, located next to the school at the rear. The structure is made of uncoursed, roughly-dressed limestone blocks with tooled ashlar dressings and features slate roofs with overlapping copings on the gable parapets. It has two staged chimneys with splayed sides, chamfered tops, and cornice bands. The building has a double-pile plan, with the left (northwest) pile being slightly larger and advanced compared to the right pile. Both sections have steep gables.
The right section, which serves as the entrance, features a shouldered arch with stopped-chamfered jambs and an expressed, pointed relieving arch, along with the original recessed, boarded door. Above the entrance, there is a rectangular window with chamfered jambs, a splayed sill, and iron-framed lozenge glazing, which was boarded at the time of inspection in July 1997. A flush stepped buttress is located on the narrow right return between the school house and the main school building, with the school house slightly advanced in front.
The left pile includes a 3-light mullioned window on the ground floor and a 2-light window on the first floor, both featuring similar glazing and segmental and pointed relieving arches, respectively, with some replaced casement sections. There is a single light window with a 2-light window beyond on the long left return, along with additional similar windows on the first floors of the paired flush rear gables. The right gable has a contemporary single-storey lean-to projection with overlapping parapets on the slate roof, featuring a 2-light mullioned window at the front and a single-light window on the side. The left gable has a modern 2-storey flat-roofed extension made of rendered brick. In front of this extension, there is a small contemporary walled service court with a Ty Bach in one corner.
Inside, the house has plain contemporary interiors with 4-panel doors and a straight-flight pitch-pine stair featuring a turned newel and plain balusters.
Local climate
Trefnant School House 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 lower than that of 59% of listed buildings.
It experiences an average of 28 freeze-thaw cycles a year, fewer than 68% of listed buildings. Of these, 15 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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