No 1 Speedwell Court is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 19 May 1981. House.

No 1 Speedwell Court

WRENN ID
noble-chapel-rush
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
19 May 1981
Type
House
Address
No 1 Speedwell Court, 1 Via Lammas Street, Carmarthen
OS grid reference
SN 408 200
Coordinates
51.85634, -4.3125
Source
Cadw listing

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

Description

No 1 Speedwell Court is a paired house built with unpainted roughcast and features a slate roof with a shared, renewed brick stack on the right. The building is two stories high and has a two-window range. The upper floor has 20th-century metal windows, with the smaller window located on the left. On the ground floor, there is a 20th-century door to the left, which is situated under a rear canopy of a through-passage, and a 4-pane sash window to the right. In 1981, it was noted that the house had exposed ceiling joists.

Local climate

No 1 Speedwell Court 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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  • 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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  1. 97 Lammas Street Grade II 5 m
  2. No 2 Speedwell Court Grade II 7 m
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  5. No 2 Thomas Court Grade II 11 m
  6. 95 Lammas Street Grade II 12 m
  7. Arcade House Grade II 15 m
  8. 94 Lammas Street Grade II 18 m
  9. 93 Lammas Street Grade II 22 m
  10. Forecourt walls, rails, gates and gateposts to English Congregational Church Grade II 27 m