Ty Gwyn is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. House.
Ty Gwyn
- WRENN ID
- narrow-cobalt-cedar
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 April 1974
- Type
- House
- Address
- Ty Gwyn, Tremadog, Porthmadog
- OS grid reference
- SH 563 403
- Coordinates
- 52.94084, -4.13894
- Source
- Cadw listing
Description
Ty Gwyn is a late Georgian, two-storey, three-bay house featuring a pebble-dashed front over stone, with a slate roof and end stacks. The later central wooden gabled porch is adorned with fretwork scrolled barge boards. The entrance includes a fielded-panel door and a three-pane overlight. On the right side, there are 18-pane tripartite hornless sash windows, while the left side has narrower 24-pane hornless sashes. The central upper window is blind. To the left, there is a lower former two-storey double-fronted cottage, which has a central door made of vertical and glazed panels, along with casement windows that include margin lights.
The former cottage also features a rear outshut. The main house, which has a rubble stone rear, includes a small-pane two-light window on the upper right. The property has not been inspected.
Local climate
Ty Gwyn 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 — 5 transactions since 2009
- 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
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