Cilgwyn is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 29 May 1968. House, terrace.
Cilgwyn
- WRENN ID
- nether-span-falcon
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 29 May 1968
- Type
- House, terrace
- Address
- Cilgwyn, 1 Church Street, Walled Town, Caernarfon
- OS grid reference
- SH 477 628
- Coordinates
- 53.14084, -4.27773
- Source
- Cadw listing
Description
Cilgwyn is a late Georgian house that is symmetrical, three stories high, and has three bays. It features painted pebble-dashed walls over rubble stone, a graded slate roof with a moulded eaves cornice, and a brick stack on the left side that is partially rendered. The central doorway is framed by a wooden doorcase with Tuscan pilasters, a half-lit panelled door, and a radial-glazed wrought-iron fanlight. The windows are set in late 19th-century architraves and consist of 12-pane hornless sashes with thin glazing bars on the lower and middle storeys. The upper storey has a 6-pane horned sash window on the left, while the central and right-hand windows are boarded over.
On the right side of the rear, there is a small-pane sash window on the lower storey. The original layout of the house has been preserved, featuring a central stair hall with principal rooms on the right and left. The dog-leg stair has plain balusters, turned newels, and moulded tread ends.
Local climate
Cilgwyn sits in one of the wettest parts of the UK, with an average of 1,370 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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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