7 Castle Square is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 29 May 1968. Shops with dwellings. 2 related planning applications.

7 Castle Square

WRENN ID
sunken-pinnacle-vetch
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
29 May 1968
Type
Shops with dwellings
Address
7 Castle Square, Caernarfon, LL55 2NF
OS grid reference
SH 479 627
Coordinates
53.13978, -4.27518
Source
Cadw listing

Also on this page: EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

7-8 Castle Square is a pair of shops with dwellings above, forming part of a terrace. The buildings are three storeys high and each has a single bay. The front is finished in scribed roughcast, and the roofs are made of slate with brick end stacks. Number 7 has a replaced slate roof on a dentilled eaves cornice, while Number 8 retains a graded slate roof on a moulded cornice. The original three-bay structure is still visible in the middle and upper storeys. The central bay of the original building has blocked windows with chamfered reveals that span both properties. The right-hand bay (Number 8) features horned sash windows in chamfered surrounds, with 12 panes in the middle storey and 9 panes in the upper storey. In the left-hand bay (Number 7), there are recently inserted tripartite 4-pane sash windows on each storey. Number 8 retains elements of an early 20th-century shop front, including panelled pilasters and fascia end panels, although the lower storey has been remodelled with a late 20th-century shop front. Number 7 also has a late 20th-century shop front on the lower storey.

Local climate

7 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • No sale records on file
  • Related listed building consents — 2 applications
  • 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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  2. 6 Castle Square Grade II 4 m
  3. Richards Newsagents Grade II 7 m
  4. Honour Restaurant Grade II 9 m
  5. Caffi Maes Grade II 11 m
  6. The Morgan Lloyd Public House Grade II 16 m
  7. Melin Brynkir Woollen Mill Grade II 16 m
  8. Macsen Restaurant Grade II 22 m
  9. 12 Castle Square Grade II 29 m
  10. 13 Castle Square Grade II 33 m