Llwyn is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 26 July 2000. House. 1 related planning application.
Llwyn
- WRENN ID
- sheer-timber-burdock
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 26 July 2000
- Type
- House
- Address
- Llwyn, Llanegryn, Tywyn, Gwynedd, LL36 9SL
- OS grid reference
- SH 604 059
- Coordinates
- 52.63318, -4.06365
- Source
- Cadw listing
Description
Llwyn comprises three cottages, originally two separate dwellings. Cottages 1 and 2 were initially constructed of uncoursed rubble with an old slate roof, though much of the original roof covering to Cottage 1 is now missing, along with the gable chimney stack. A later house, Cottage 3, was added to the uphill gable, built of roughly coursed rubble and featuring a 20th-century slate roof with flush verges and a tall stack within its lower gable.
Cottage 1 displays remnants of its original central doorway and two flanking windows, but these are in a state of disrepair. Cottage 2 retains a central boarded entrance door with an inset lozenge window. Four-pane windows, one sash and one casement, are located just below the eaves on either side. Cottage 3 mirrors this layout with a modern stable-type boarded door in the centre and one 19th-century four-pane horned sash window on each side.
Local climate
Llwyn sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.
It experiences an average of 23 freeze-thaw cycles a year, fewer than 76% of listed buildings. Of these, 9 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 2013
- 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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