Ty Mawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 November 1966. House. 2 related planning applications.
Ty Mawr
- WRENN ID
- woven-grate-cream
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 November 1966
- Type
- House
- Address
- Ty Mawr, Llanfair, Gwynedd, LL46 2SA
- OS grid reference
- SH 577 290
- Coordinates
- 52.84034, -4.11397
- Source
- Cadw listing
Description
Ty Mawr is likely a house built in the late 18th century or early 19th century, designed in a T-shape over two stories. It is constructed from rubble masonry, with the main facade featuring coursed, roughly dressed stone. The roof is made of slate and has stone copings, along with broad gable stacks that have capping. The principal elevation faces southwest and includes a three-window arrangement with a central doorway that has a shallow overlight above it. The windows are 16-pane horned sashes with slate sills, and similar windows can be found at the rear of the house. The interior was not inspected during the survey.
Local climate
Ty Mawr sits in one of the wettest parts of the UK, with an average of 1,460 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 96% of listed buildings.
It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 14 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
- Sale history — 1 transaction since 2000
- Related listed building consents — 2 applications
- 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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