1, Mainstone is a Grade II listed building in the Test Valley local planning authority area, England. First listed on 28 August 1951. House. 1 related planning application.
1, Mainstone
- WRENN ID
- carved-corbel-brook
- Grade
- II
- Local Planning Authority
- Test Valley
- Constituency
- Romsey and Southampton North MP: Caroline Nokes (Con)
- Country
- England
- Date first listed
- 28 August 1951
- Type
- House
- Address
- 1, Mainstone, Romsey, SO51 8HG
- OS grid reference
- SU 348 206
- Coordinates
- 50.98446, -1.50422
- Source
- Historic England listing
Description
The building at 1 Mainstone is a 16th-century structure, with alterations in the 18th century. It is a two-storey building constructed of colourwashed brick, featuring a distinctive toothed brick eaves cornice and an old tile roof. The riverside elevation incorporates a two-storey angular bay window to the north-west, with two-light casement windows on each floor. This bay window has a small dentilled cornice around its head and a plastered finish beneath the windows. The road elevation has two segmental-headed, two-light casement windows on the ground floor. A 6-panel flush door is set within an architrave surround and a decorative doorcase, which includes fluted pilasters, cross-reeded brackets, a fluted frieze, a shallow moulded cornice broken forward over the brackets, and a moulded, dentilled pediment. All casement windows are original. The building forms a group with Nos. 177 and 179 Middlebridge Street and Nos. 1 to 7 (odd) Middle Bridge.
Local climate
1, Mainstone receives an average of 790 mm of rain a year. This makes it drier than 58% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 60% of listed buildings.
It experiences an average of 29 freeze-thaw cycles a year, fewer than 68% of listed buildings. Of these, 11 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 — 2 transactions since 2007
- Related listed building consents — 1 application
- 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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