Former outbuilding of Plas Ynys Tywyn (attached to Co-op supermarket) is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. Outbuilding. 1 related planning application.
Former outbuilding of Plas Ynys Tywyn (attached to Co-op supermarket)
- WRENN ID
- sharp-hearth-indigo
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 April 1974
- Type
- Outbuilding
- Address
- Former outbuilding of Plas Ynys Tywyn (attached to Co-op supermarket), LL49 9PG
- OS grid reference
- SH 570 385
- Coordinates
- 52.92569, -4.1282
- Source
- Cadw listing
Description
This former outbuilding of Plas Ynys Tywyn, now attached to a Co-op supermarket, is a lofted structure built from large slate-stone blocks arranged in regular courses, topped with a slate roof. The gable end features a bellcote above a small-pane loft window, which is framed in steel and has been replaced. Below this loft window is a larger window of a similar design. The left side wall includes three open bays supported by slate-stone orthostats and lintels. On the right side wall, there is an inserted opening that creates a pedestrian way through the building, which is enclosed within an open-fronted canopy that connects to the supermarket at the rear.
Local climate
Former outbuilding of Plas Ynys Tywyn (attached to Co-op supermarket) sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction 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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