12 Nun Street is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 26 August 1981. Row of houses. 1 related planning application.

12 Nun Street

WRENN ID
blind-eave-amber
Grade
II
Local Planning Authority
Pembrokeshire Coast National Park
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
26 August 1981
Type
Row of houses
Address
12 Nun Street, St. David's and the Cathedral Close, SA62 6NS
OS grid reference
SM 753 253
Coordinates
51.88161, -5.26565
Source
Cadw listing

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

Description

12 Nun Street is a row of four houses built in the later 19th century. The houses are constructed of rubble stone, originally with grouted slate roofs, which have been replaced with imitation slate on all but number 12. They have three stone chimney stacks. Each house is two storeys high with two windows. The upper windows are 9-pane sashes and the lower windows are 12-pane sashes, with a door below. The window and door surrounds are red brick with a cambered top. The houses were built as two pairs, with a visible straight joint between numbers 8 and 10. Each pair features closely-spaced doors and windows above. Modern doors have been installed. Number 12 has had its ground floor sash window replaced with a modern tripartite sash window with a 4-12-4 pane arrangement, set under a concrete lintel. Purple stone quoins are visible at the northwest corner of the building.

Local climate

12 Nun Street sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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.
  • Sale history — 1 transaction since 2015
  • Related listed building consents — 1 application
  • 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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Nearby listed buildings

  1. 10 Nun Street Grade II 6 m
  2. Hendy Gwyn Grade II 10 m
  3. 8 Nun Street Grade II 12 m
  4. No.2 Cathedral Villas Grade II 16 m
  5. No.1 Cathedral Villas Grade II 17 m
  6. 6 Nun Street Grade II 17 m
  7. No.3 Cathedral Villas Grade II 18 m
  8. Glendower including front garden wall & railings Grade II 24 m
  9. Menai, including Garden Walls, Gates & Railings Grade II 30 m
  10. 5 Nun Street Grade II 33 m