17 St Mary's Street is a Grade II listed building in the Swansea local planning authority area, Wales. First listed on 30 March 1987. House. 2 related planning applications.
17 St Mary's Street
- WRENN ID
- tired-truss-juniper
- Grade
- II
- Local Planning Authority
- Swansea
- Constituency
- Swansea West MP: Torsten Bell (Lab)
- Country
- Wales
- Date first listed
- 30 March 1987
- Type
- House
- Address
- 17 St Mary's Street, Castle, SA1 3LH
- OS grid reference
- SS 656 929
- Coordinates
- 51.61956, -3.94157
- Source
- Cadw listing
Description
This building at 17 St Mary's Street is a lower, three-story structure dating from the late Georgian period. The front facade is faced in cement. Later alterations have been made. The roof is slate covered. The upper windows are plain, while the first floor features tripartite windows set within arched recesses. A shop front with paired brackets supporting the cornice is present on the left side, incorporating a doorway. To the left of the shop front is a well-proportioned pilastered doorpiece topped with a cornice, sheltering recessed double doors.
Local climate
17 St Mary's Street sits in one of the wettest parts of the UK, with an average of 1,380 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 14 freeze-thaw cycles a year, fewer than 87% of listed buildings. Of these, 5 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.
- Sale history — 1 transaction since 1998
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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