6 Castle Square is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 29 May 1968. Shop.
6 Castle Square
- WRENN ID
- rooted-flagstone-sunrise
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 29 May 1968
- Type
- Shop
- Address
- 6 Castle Square, Caernarfon
- OS grid reference
- SH 479 627
- Coordinates
- 53.13978, -4.27524
- Source
- Cadw listing
Description
5-6 Castle Square is a pair of shops with dwellings above, forming a terrace. The front is roughcast, and the roofs are slate, with No 5 featuring replaced slate and No 6 retaining its original graded slates. The building has three storeys, each with a single bay. The middle and upper storeys are accented by rusticated end pilaster strips, a moulded upper sill band, and a moulded wooden eaves cornice. The windows on these storeys are tripartite 4-pane sashes set between broad colonnettes with crocket capitals. The middle-storey windows have architraves with blind segmental arches. On the lower storey, No 6 has an early 20th-century shop front, which includes a fascia with end brackets on plain pilasters, a replaced door, and a 2-light shop window with turned wood mullions and a transom. No 5 features a late 20th-century front. There are wings added to the rear.
Local climate
6 Castle Square 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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