1,654 people · median £408,000 · Test Valley
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Sold price trend from Test Valley +2.1%
The area in short neighbourhood AI summary
Mainstone is a Hampshire neighbourhood with a population of 1,654. The median house price is £408,000, with 34 sales recorded in the 12 months to May 2026. Terraced properties (16 sales) show a median of £400,500, while detached homes (6 sales) reach £625,000.
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About 51.7 per cent of properties hold EPC band C or better, with the median band at C. The area falls within Test Valley, with primary provision through Romsey Abbey CE Primary School and secondary education at The Romsey Academy. Air quality is good, with low nitrogen dioxide (8.1 annual mean) and moderate particulate matter (6.3 annual mean). Flood risk affects 8.3 per cent of the area. Broadband connectivity is strong: 98.4 per cent can access superfast speeds and 55.6 per cent gigabit-capable. About 85 per cent of neighbourhoods in England are more deprived. Council tax for band D is £2,247.32. The ward is Romsey Abbey and the area contains 93 listed buildings within the Romsey conservation area.
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