Flat 11, 25, Onslow Square has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 23 Mar 2022.

The property is connected to mains gas and has fully double glazed windows. It is heated using community scheme.

The most recent sale of Flat 11, 25, Onslow Square completed on 28th July 2023 at £1,600,000 and was recorded by HM Land Registry as a leasehold flat.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 7.8% over the period since July 2023.

• Sold Jul 2023£1,600,000

Since 2014 42 properties similar to Flat 11, 25, Onslow Square have sold within a radius of 280 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 2nd June 2026, was 36, Sydney Street, London, SW3 6PP, a leasehold flat which sold for £1,470,000.

Read more about house prices in SW7.

• Sold Jun 2026£1,470,000 | 3 Bed Flat36, Sydney Street, London, SW3 6PP36, Sydney Street, London, SW3 6PP
• Sold Jun 2025£1,575,000 | 3 Bed FlatFlat 29, Thurloe Court, Fulham Road, London, SW3 6SBFlat 29, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Mar 2025£1,300,000 | 3 Bed FlatFlat 18, Melton Court, Onslow Crescent, London, SW7 3JQFlat 18, Melton Court, Onslow Crescent, London, SW7 3JQ
• Sold Oct 2024£1,732,000 | 2 Bed FlatFlat 1, 73, Onslow Square, London, SW7 3LSFlat 1, 73, Onslow Square, London, SW7 3LS
• Sold Oct 2024£1,450,000 | 3 Bed FlatFlat 2, 12, Sumner Place, London, SW7 3EEFlat 2, 12, Sumner Place, London, SW7 3EE
• Sold Apr 2024£1,400,000 | 2 Bed FlatFlat 12, 27, Onslow Square, London, SW7 3NHFlat 12, 27, Onslow Square, London, SW7 3NH
• Sold Feb 2024£1,493,500 | 2 Bed FlatFlat 14, 27, Onslow Square, London, SW7 3NHFlat 14, 27, Onslow Square, London, SW7 3NH
• Sold Sep 2022£1,795,000 | 3 Bed FlatFlat 37, Thurloe Court, Fulham Road, London, SW3 6SBFlat 37, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Jul 2022£1,070,000 | 3 Bed FlatFlat 40, Thurloe Court, Fulham Road, London, SW3 6SBFlat 40, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Mar 2022£1,560,000 | 3 Bed FlatFlat 9, Thurloe Court, Fulham Road, London, SW3 6SBFlat 9, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Oct 2021£430,000 | 3 Bed FlatFlat 6, 27, Onslow Square, London, SW7 3NHFlat 6, 27, Onslow Square, London, SW7 3NH
• Sold Sep 2021£1,385,000 | 3 Bed FlatFlat 21, Thurloe Court, Fulham Road, London, SW3 6SBFlat 21, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Sep 2017£1,700,000 | 2 Bed FlatFlat 10, 27, Onslow Square, London, SW7 3NHFlat 10, 27, Onslow Square, London, SW7 3NH
• Sold May 2016£2,300,000 | 3 Bed FlatFlat 38, Thurloe Court, Fulham Road, London, SW3 6SBFlat 38, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold May 2015£1,750,000 | 3 Bed FlatFlat 6, Thurloe Court, Fulham Road, London, SW3 6SBFlat 6, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Feb 2015£1,625,000 | 3 Bed FlatFlat 30, Thurloe Court, Fulham Road, London, SW3 6SBFlat 30, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Sep 2014£1,625,000 | 2 Bed FlatFlat 1, 27, Onslow Square, London, SW7 3NHFlat 1, 27, Onslow Square, London, SW7 3NH
• Sold May 2014£1,925,000 | 3 Bed FlatFlat 34, Thurloe Court, Fulham Road, London, SW3 6SBFlat 34, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Mar 2014£1,860,000 | 3 Bed FlatFlat 33, Thurloe Court, Fulham Road, London, SW3 6SBFlat 33, Thurloe Court, Fulham Road, London, SW3 6SB
• Sold Feb 2014£123,500 | 3 Bed FlatFlat 1, Thurloe Court, Fulham Road, London, SW3 6SBFlat 1, Thurloe Court, Fulham Road, London, SW3 6SB

Of the 321 addresses on Onslow Square, London, SW7, Flat 11, 25, Onslow Square comes out as the 229th largest and the 254th most expensive in our analysis of the public data.

It is also £691k less expensive than the average property across the SW7 district.

• Oratory Roman Catholic Primary School

  300 m away
• Marlborough Primary School

  400 m away
• Our Lady of Victories RC Primary School

  500 m away

• St. Thomas More Language College

  700 m away
• Chelsea Academy

  1.8 km away
• The London Oratory School

  1.9 km away

• South Kensington

  |

  200 m away
• Gloucester Road

  |

  700 m away
• Knightsbridge

  |

  1.0 km away

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