HM Land Registry records the plot of land for 11, Mainstone, Romsey as measuring 215 m².

That makes it the 6th largest plot in the postcode, where all 7 other houses have recorded plot data.

The most recent sale of 11, Mainstone, Romsey completed on 28th September 2007 at £350,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 3 times.

Values of comparable properties have risen by 55.7% over the period since September 2007.

• Sold Sep 2007£350,000
• Sold Oct 2001£192,500
• Sold May 1997£79,000

Since 2007 30 properties similar to 11, Mainstone, Romsey have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 16th February 2026, was The Wheel House, The Causeway, Romsey, SO51 8HF, a freehold house which sold for £525,000.

Read more about house prices in SO51.

• Sold Feb 2026£525,000 | 4 Bed HouseThe Wheel House, The Causeway, Romsey, SO51 8HFThe Wheel House, The Causeway, Romsey, SO51 8HF
• Sold Jan 2026£650,000 | 4 Bed House32, Newton Lane, Romsey, SO51 8GX32, Newton Lane, Romsey, SO51 8GX
• Sold Dec 2025£760,000 | 4 Bed House54, Newton Lane, Romsey, SO51 8GX54, Newton Lane, Romsey, SO51 8GX
• Sold Nov 2025£625,000 | 4 Bed House34, Newton Lane, Romsey, SO51 8GX34, Newton Lane, Romsey, SO51 8GX
• Sold Jul 2025£540,000 | 4 Bed House55, Cherville Street, Romsey, SO51 8FB55, Cherville Street, Romsey, SO51 8FB
• Sold Jun 2024£550,000 | 4 Bed House51, Newton Lane, Romsey, SO51 8GX51, Newton Lane, Romsey, SO51 8GX
• Sold Feb 2024£678,000 | 4 Bed House135, Middlebridge Street, Romsey, SO51 8HH135, Middlebridge Street, Romsey, SO51 8HH
• Sold Jan 2024£700,000 | 4 Bed House6 St. James Mews, The Hundred, Romsey, SO51 8BX6 St. James Mews, The Hundred, Romsey, SO51 8BX
• Sold Sep 2022£900,000 | 4 Bed House8, Middlebridge Street, Romsey, SO51 8HL8, Middlebridge Street, Romsey, SO51 8HL
• Sold Sep 2022£645,000 | 4 Bed House52, Newton Lane, Romsey, SO51 8GX52, Newton Lane, Romsey, SO51 8GX
• Sold Aug 2022£558,000 | 4 Bed House13, Palmerston Street, Romsey, SO51 8GF13, Palmerston Street, Romsey, SO51 8GF
• Sold Oct 2021£1,560,000 | 4 Bed House10, Little Meads, Romsey, SO51 8HD10, Little Meads, Romsey, SO51 8HD
• Sold Jun 2019£485,000 | 4 Bed House73, The Hundred, Romsey, SO51 8BZ73, The Hundred, Romsey, SO51 8BZ
• Sold Apr 2017£655,000 | 4 Bed House1, Mainstone, Romsey, SO51 8HG1, Mainstone, Romsey, SO51 8HG
• Sold Apr 2017£415,000 | 4 Bed House77, Station Road, Romsey, SO51 8DP77, Station Road, Romsey, SO51 8DP
• Sold Aug 2016£525,000 | 4 Bed House50, Newton Lane, Romsey, SO51 8GX50, Newton Lane, Romsey, SO51 8GX
• Sold May 2014£500,000 | 4 Bed House75, Riverside Gardens, Romsey, SO51 8HN75, Riverside Gardens, Romsey, SO51 8HN
• Sold Jul 2012£340,000 | 4 Bed House73, Station Road, Romsey, SO51 8DP73, Station Road, Romsey, SO51 8DP
• Sold Sep 2008£720,000 | 4 Bed House11, The Abbey, Romsey, SO51 8EN11, The Abbey, Romsey, SO51 8EN
• Sold Dec 2007£750,000 | 4 Bed House21, The Abbey, Romsey, SO51 8EN21, The Abbey, Romsey, SO51 8EN

Of the 16 addresses on Mainstone, Romsey, SO51, 11, Mainstone, Romsey comes out as the 3rd largest and the 3rd most expensive in our analysis of the public data.

It is also £134k more expensive than the average property across the SO51 district.

• Romsey Abbey Church of England Primary School

  700 m away
• Romsey Primary School & Nursery

  1.7 km away
• Cupernham Junior School

  2.4 km away

• The Romsey School

  1.1 km away
• The Mountbatten School

  2.5 km away
• Oasis Academy Lord's Hill

  6.6 km away

• Romsey

  |

  1.2 km away
• Mottisfont & Dunbridge

  |

  6.2 km away
• Totton

  |

  7.5 km away

The flood risk here is rated Medium, based on Environment Agency data.