Weigh House at Lon-Isaf Gate is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 3 March 1966. Weigh house.
Weigh House at Lon-Isaf Gate
- WRENN ID
- hollow-rood-smoke
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 3 March 1966
- Type
- Weigh house
- Address
- Weigh House at Lon-Isaf Gate, Llandygai
- OS grid reference
- SH 602 693
- Coordinates
- 53.20319, -4.09446
- Source
- Cadw listing
Description
The Weigh House at Lon-Isaf Gate is a small square-plan building dating from the 19th century. It is constructed of roughly coursed and dressed rubblestone with quoins. The gable-ended slate roof features slate coping and slate slabs at the eaves, creating the appearance of a pediment at each end. The front gable end, which faces at right angles to the road, has a blind round-headed window with voussoirs and a slate cill. This window, similar to one on the opposite cottage, originally displayed a board listing the toll charges. To the right side wall, there is a square-headed blind window with a slate cill and lintel, as well as a boarded door.
Local climate
Weigh House at Lon-Isaf Gate sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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