The Old Granary is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. Granary.
The Old Granary
- WRENN ID
- wild-terrace-twilight
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 April 1974
- Type
- Granary
- Address
- The Old Granary, Tremadog, Porthmadog
- OS grid reference
- SH 560 401
- Coordinates
- 52.93903, -4.14287
- Source
- Cadw listing
Description
The Old Granary is a former coach house and granary dating back to the 18th century, constructed from coursed rubble stone with a slate roof. The northern gable end features a wide segmental arch made of freestone voussoirs, which has been infilled with glazing. Above this arch is a former doorway that has been converted into a window, with a pulley block situated above it.
On the lean-to aisles, the left doorway has been blocked and turned into a small window, while a replacement glazed door is located on the right. The eastern side wall has had several openings added during its conversion for domestic use, including a recessed door with a window to its left, a low raked roof dormer in the aisle, skylights in the main range, and a two-window extension at the left end. Similarly, the western side wall features modern openings, including two small windows set in deeper, partly blocked earlier openings, along with two skylights.
The southern gable end has a two-window arrangement with replacement windows beneath original timber lintels and a loft pitching eye. The interior has been modernised.
Local climate
The Old Granary 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
- No sale records on file
- 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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