Ty Gwyn Mawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 December 2004. Warehouse.
Ty Gwyn Mawr
- WRENN ID
- unlit-rotunda-rowan
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 December 2004
- Type
- Warehouse
- Address
- Ty Gwyn Mawr, Llanfihangel Y Traethau, Talsarnau, Gwynedd
- OS grid reference
- SH 599 354
- Coordinates
- 52.89857, -4.08335
- Source
- Cadw listing
Description
Ty Gwyn Mawr is a building that consists of a warehouse on the right (east) side and domestic accommodation on the left (west). It is three stories tall with a cellar and is constructed from coursed, roughly dressed local stone. The slate roof features broad stone stacks with dripstones and capping that mark the extent of the domestic area.
The main front of the building faces south, with the domestic accommodation on the left, which has a two-window arrangement and a doorway that is accessed through a modern grit rendered porch on the right. The windows are 6-pane horned sashes. The warehouse on the right has a double boarded door at ground level and two blocked windows in the upper stories. The east gable has boarded doorways on each floor and a winch hole located at the apex of the gable. The rear (north) wall of the dwelling features 6-pane horned sash windows on the ground and second floors, while the first floor retains the original 16-pane hornless sash windows. The warehouse section has small openings between the stories.
The interior was not inspected during the survey.
Local climate
Ty Gwyn Mawr 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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- No EPC on record for this property
- Sale history — 7 transactions since 1995
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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