Y Plas is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 9 August 1990. House. 1 related planning application.
Y Plas
- WRENN ID
- muffled-latch-aspen
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 9 August 1990
- Type
- House
- Address
- Y Plas, Talley, SA19 7YY
- OS grid reference
- SN 632 327
- Coordinates
- 51.976, -3.99204
- Source
- Cadw listing
Description
Y Plas is a house dating to circa 1832, built in a Regency Gothick style. It is two storeys high and constructed of rubble masonry, originally stuccoed. The roof has a hipped shape, with a valley to the rear, and wide plastered eaves. Rendered chimney stacks are set back on the ridges.
The front facade is symmetrical with three windows. The windows are pointed arched, with stone voussoirs, and contain Victorian six-pane horned sashes with vertical glazing bars; similarly glazed fanlights are above each window. The pointed arched doorway has stone voussoirs and a fanlight matching the windows, now with a modern part-glazed door.
On the west elevation, a single arched window to the first floor retains an original Y-traceried fanlight and a sash window matching the style of the rest of the building. Two similar windows are present on the ground floor to the left, and a window matching the front elevation to the right. A tall, pointed window is visible on the right hand return elevation, with a Y-traceried head above a two-light, eight-pane casement. A Y-traceried head frames the sixteen-pane cellar window below.
The rear elevation features a pointed arched central doorway with a recessed half-glazed door. An original sixteen-pane horned sash with a Y-traceried fanlight is found in the ground floor window to the left, set within a pointed head with stone voussoirs. Two similar windows are present on the first floor.
An L-shaped service wing adjoins the house to the north. This single-storey wing has a slate roof with a hipped angle and a large rubble end chimney stack. It has three-light casement windows with stone voussoirs.
Inside, a contemporary dogleg staircase is located off the central access passage, and the house has panelled doors.
Local climate
Y Plas sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 68% of listed buildings. Of these, 18 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 3 transactions since 2004
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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