12, St Mary Street is a Grade II listed building in the Wiltshire local planning authority area, England. First listed on 22 June 1978. House, offices. 2 related planning applications.
12, St Mary Street
- WRENN ID
- forgotten-tin-sparrow
- Grade
- II
- Local Planning Authority
- Wiltshire
- Constituency
- Chippenham MP: Sarah Gibson (LD)
- Country
- England
- Date first listed
- 22 June 1978
- Type
- House, offices
- Address
- 12, St Mary Street, Chippenham, SN15 3JJ
- OS grid reference
- ST 922 732
- Coordinates
- 51.45858, -2.11271
- Source
- Historic England listing
Description
No. 12, St Mary Street is a mid-19th century house, now used as offices. The building is constructed of limestone ashlar with a slate roof and a stone stack to the rear. It has a double-depth plan with a rear wing. The exterior is three storeys high and has a single-window range. A full-height canted bay dominates the right side of the facade, featuring 8/8-pane sash windows on the first and second floors, and a plate-glass sash window on the ground floor. To the left, steps lead to a semicircular arch with a radial fanlight above a 20th-century door. There are blank windows above the door on both floors, and platbands delineate the floors. The interior has not been inspected.
Local climate
12, St Mary Street receives an average of 820 mm of rain a year. This makes it wetter than 50% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 51% of listed buildings.
It experiences an average of 33 freeze-thaw cycles a year, fewer than 56% of listed buildings. Of these, 15 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 — 4 transactions since 2002
- 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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