9&10 St Mary Street is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 24 March 1975. Townhouse, shop. 4 related planning applications.
9&10 St Mary Street
- WRENN ID
- crumbling-oriel-tarn
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 24 March 1975
- Type
- Townhouse, shop
- Address
- 9&10 St Mary Street, Chepstow, NP16 5EW
- OS grid reference
- ST 534 939
- Coordinates
- 51.64252, -2.6738
- Source
- Cadw listing
Description
9 and 10 St Mary Street is a large Georgian townhouse and shop, now functioning as a single shop with accommodation above, and is attached to buildings on either side. The walls are made of stone rubble that is roughcast rendered, with joint-lines that are barely visible. The building has a slate roof with brick end stacks and stands three storeys tall.
It features a five-window range of 8-pane sash windows set in moulded exposed frames with segmental-arched heads. The entire ground floor is occupied by an unusual projecting early 20th-century shop front that includes three windows and two recessed angled entrance doors. This shop front is notable for its paired heavy twinned console brackets at the end pilasters, a tiled plinth, unusual channelled polygonal corner mullions, a narrow frieze with ventilator panels, and a panelled soffit. The entrance is accessed via marble chequer-pattern steps.
Local climate
9&10 St Mary Street receives an average of 830 mm of rain a year. This makes it wetter than 55% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.
It experiences an average of 39 freeze-thaw cycles a year, more than 76% of listed buildings. Of these, 18 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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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 4 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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