11, St Michael's Square is a Grade II listed building in the Southampton local planning authority area, England. First listed on 14 July 1953. A Medieval Undercroft.
11, St Michael's Square
- WRENN ID
- crooked-cupola-elm
- Grade
- II
- Local Planning Authority
- Southampton
- Constituency
- Southampton Itchen MP: Darren Paffey (Lab)
- Country
- England
- Date first listed
- 14 July 1953
- Type
- Undercroft
- Period
- Medieval
- Address
- 11, St Michael's Square, City of Southampton
- OS grid reference
- SU 419 113
- Coordinates
- 50.8998, -1.40547
- Source
- Historic England listing
Description
11 St Michael's Square is a late 14th century undercroft with an elliptical shape. It is constructed from roughly coursed rubble, featuring a springing course made of finely tooled ashlar. The north-east corner likely housed a garderobe shaft from the floor above. This structure is also designated as a scheduled ancient monument.
Local climate
11, St Michael's Square receives an average of 830 mm of rain a year. This makes it wetter than 53% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.
It experiences an average of 18 freeze-thaw cycles a year, fewer than 82% of listed buildings. Of these, 7 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
- No related consent applications matched
- 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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