According to data from HM Land Registry, 20, Mountain Ash Close, Southampton sits on a plot of 178 m².

We have plot size data on 17 out of 32 other houses in the postcode and 20, Mountain Ash Close, Southampton sits on the 8th largest plot.

20, Mountain Ash Close, Southampton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 May 2026.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 20, Mountain Ash Close, Southampton was last sold on 5th January 2009 for £145,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since January 2009, the market for similar properties has risen by 107.4%.

• Sold Jan 2009£145,000

According to the Land Registry and our network of Estate Agents, there have been 96 sales of properties similar to 20, Mountain Ash Close, Southampton within a radius of 550 metres since 2017.

The most recent example is 44, Eynham Avenue, Southampton, SO19 5LB, a leasehold house which sold for £260,000 on the 1st May 2026.

Read more about house prices in SO18.

• Sold May 2026£260,000 | 3 Bed House44, Eynham Avenue, Southampton, SO19 5LB44, Eynham Avenue, Southampton, SO19 5LB
• Sold Nov 2025£260,000 | 3 Bed House3, Exleigh Close, Southampton, SO18 5FB3, Exleigh Close, Southampton, SO18 5FB
• Sold Oct 2025£258,000 | 3 Bed House4, Keats Road, Southampton, SO19 5FF4, Keats Road, Southampton, SO19 5FF
• Sold Mar 2025£250,000 | 3 Bed House7, Woodland Close, Southampton, SO18 5RD7, Woodland Close, Southampton, SO18 5RD
• Sold Dec 2024£260,000 | 3 Bed House16, Keats Road, Southampton, SO19 5FF16, Keats Road, Southampton, SO19 5FF
• Sold Sep 2024£152,000 | 3 Bed House9, Woodland Close, Southampton, SO18 5RD9, Woodland Close, Southampton, SO18 5RD
• Sold Mar 2024£175,000 | 3 Bed House10, Woodland Close, Southampton, SO18 5RD10, Woodland Close, Southampton, SO18 5RD
• Sold Nov 2023£295,000 | 3 Bed House57, Taunton Drive, Southampton, SO18 5BW57, Taunton Drive, Southampton, SO18 5BW
• Sold Oct 2023£290,000 | 2 Bed House5, Exleigh Close, Southampton, SO18 5FB5, Exleigh Close, Southampton, SO18 5FB
• Sold Jul 2023£282,500 | 3 Bed House28, Mountain Ash Close, Southampton, SO18 5SH28, Mountain Ash Close, Southampton, SO18 5SH
• Sold May 2023£275,000 | 3 Bed House667, Bitterne Road East, Southampton, SO18 5QX667, Bitterne Road East, Southampton, SO18 5QX
• Sold Apr 2022£281,000 | 3 Bed House27, Mountain Ash Close, Southampton, SO18 5SH27, Mountain Ash Close, Southampton, SO18 5SH
• Sold Jan 2022£267,000 | 3 Bed House18, Mountain Ash Close, Southampton, SO18 5SH18, Mountain Ash Close, Southampton, SO18 5SH
• Sold Dec 2020£162,000 | 3 Bed House96, Blendworth Lane, Southampton, SO18 5HG96, Blendworth Lane, Southampton, SO18 5HG
• Sold Sep 2020£250,000 | 3 Bed House4, Woodland Close, Southampton, SO18 5RD4, Woodland Close, Southampton, SO18 5RD
• Sold Jul 2019£197,000 | 3 Bed House7, Keats Road, Southampton, SO19 5FF7, Keats Road, Southampton, SO19 5FF
• Sold Jan 2019£200,000 | 3 Bed House10, Keats Road, Southampton, SO19 5FF10, Keats Road, Southampton, SO19 5FF
• Sold Jan 2019£205,000 | 3 Bed House22, Keats Road, Southampton, SO19 5FF22, Keats Road, Southampton, SO19 5FF
• Sold Dec 2017£250,000 | 3 Bed House8, Mountain Ash Close, Southampton, SO18 5SH8, Mountain Ash Close, Southampton, SO18 5SH
• Sold Aug 2017£228,000 | 3 Bed House44, Mon Crescent, Southampton, SO18 5QU44, Mon Crescent, Southampton, SO18 5QU

Mountain Ash Close, Southampton, SO18 has a total of 62 addresses. According to our analysis of all the public data, 20, Mountain Ash Close, Southampton is the 23rd largest and the 25th most expensive property on the street.

When compared to the postcode district it is £2k more expensive than the average property in SO18.

• Thornhill Primary School

  600 m away
• Harefield Primary School

  700 m away
• Kanes Hill Primary School

  1.0 km away

• Woodlands Community College

  500 m away
• Oasis Academy Sholing

  1.7 km away
• Bitterne Park School

  2.6 km away

• Bitterne

  |

  2.5 km away
• Sholing

  |

  2.6 km away
• Woolston

  |

  3.1 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.