Weigh House Vault (Situated Under Playground of St John's School) is a Grade II listed building in the Southampton local planning authority area, England. First listed on 14 February 1969. Vault.
Weigh House Vault (Situated Under Playground of St John's School)
- WRENN ID
- drifting-rampart-equinox
- Grade
- II
- Local Planning Authority
- Southampton
- Constituency
- Southampton Itchen MP: Darren Paffey (Lab)
- Country
- England
- Date first listed
- 14 February 1969
- Type
- Vault
- Address
- Weigh House Vault (Situated Under Playground of St John's School), French Street, City of Southampton
- OS grid reference
- SU 419 111
- Coordinates
- 50.89801, -1.40509
- Source
- Historic England listing
Description
The Weigh House Vault, located under the playground of St John's School, is a medieval vault likely dating from the end of the 14th century. It is thought to have originally served as a shop in the front part of the undercroft. The vault features an elliptical shape and is constructed from dressed stone, with an ashlar course at the springing level. It has a door with a 4-centred head and stone benches set in the side recesses. The vault is also scheduled as an ancient monument.
Local climate
Weigh House Vault (Situated Under Playground of St John's School) 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.
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- No EPC on record for this property
- 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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