18 Spilman Street is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 19 May 1981. House. 1 related planning application.

18 Spilman Street

WRENN ID
brooding-entrance-jay
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
19 May 1981
Type
House
Address
18 Spilman Street, Carmarthen, SA31 1JY
OS grid reference
SN 414 201
Coordinates
51.8573, -4.30324
Source
Cadw listing

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

Description

18 Spilman Street is a two-storey building that was constructed as a pair with number 17. It features an informal terrace design with painted roughcast and a 20th-century renewed stucco low parapet and cornice. The building has a slate roof and brick end stacks, along with a painted raised plinth.

The façade consists of a two-window range, with renewed horned 16-pane sash windows that are offset to the right. The entrance is located in the right bay and includes an original six-panel door, which has four fielded panels and a narrow overlight above. The doorcase is made of fine Bath stone and is adorned with two Tuscan half-columns, a frieze, and a cornice. The building also has a deep basement.

While it has not been inspected, it is reported to be entirely renovated.

Local climate

18 Spilman Street sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 30 freeze-thaw cycles a year, fewer than 64% of listed buildings. Of these, 14 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 — 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. 17 Spilman Street Grade II 6 m
  2. 19 Spilman Street Grade II 6 m
  3. 16 Spilman Street Grade II 15 m
  4. 15 Spilman Street Grade II 24 m
  5. 14 Spilman Street Grade II 34 m
  6. Napier House Grade II 46 m
  7. Oriel Myrddin (The Old Art School) Grade II 47 m
  8. 24 King Street Grade II 55 m
  9. 12 Spilman Street Grade II 56 m
  10. No 25, including No 3 Conduit Lane Grade II 58 m