Flat 10, 81, Onslow Square has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 17 Apr 2023.

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

Flat 10, 81, Onslow Square last changed hands on 15th August 2025, selling for £2,500,000. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 24.5% since August 2025.

• Sold Aug 2025£2,500,000
• Sold Nov 2011£2,625,000

Land Registry records and our Estate Agent network show 22 sales of comparable properties within 260 metres of Flat 10, 81, Onslow Square since 2008.

Most recently, 38, Rose Square, London, SW3 6RS, a leasehold flat, sold at £2,600,000 on the 19th September 2024.

Read more about house prices in SW7.

• Sold Sep 2024£2,600,000 | 3 Bed Flat38, Rose Square, London, SW3 6RS38, Rose Square, London, SW3 6RS
• Sold Dec 2023£2,841,500 | 3 Bed Flat62, Rose Square, London, SW3 6RS62, Rose Square, London, SW3 6RS
• Sold Aug 2022£875,000 | 3 Bed FlatFlat 16, 9-11 , Manson Place, London, SW7 5LTFlat 16, 9-11 , Manson Place, London, SW7 5LT
• Sold Sep 2021£3,500,000 | 3 Bed Flat64, Rose Square, London, SW3 6RS64, Rose Square, London, SW3 6RS
• Sold Jun 2021£3,325,000 | 3 Bed FlatFlat 4, 81, Onslow Square, London, SW7 3LTFlat 4, 81, Onslow Square, London, SW7 3LT
• Sold Apr 2021£2,500,000 | 4 Bed FlatFlat 12, 105, Onslow Square, London, SW7 3LUFlat 12, 105, Onslow Square, London, SW7 3LU
• Sold Sep 2019£2,682,000 | 3 Bed Flat1A, Neville Street, London, SW7 3AR1A, Neville Street, London, SW7 3AR
• Sold Dec 2016£3,000,000 | 3 Bed FlatFlat 1, 30, Onslow Gardens, London, SW7 3AHFlat 1, 30, Onslow Gardens, London, SW7 3AH
• Sold Jun 2016£4,140,000 | 3 Bed FlatFlat 2, 44, Onslow Square, London, SW7 3NXFlat 2, 44, Onslow Square, London, SW7 3NX
• Sold Sep 2015£3,850,000 | 3 Bed Flat20, Rose Square, London, SW3 6RS20, Rose Square, London, SW3 6RS
• Sold Jun 2015£3,850,000 | 3 Bed FlatFlat 7, 21, Onslow Gardens, London, SW7 3ALFlat 7, 21, Onslow Gardens, London, SW7 3AL
• Sold Mar 2015£2,300,000 | 4 Bed FlatFlat 4, 38, Onslow Gardens, London, SW7 3PYFlat 4, 38, Onslow Gardens, London, SW7 3PY
• Sold Dec 2014£3,950,000 | 3 Bed FlatFlat 6, 81, Onslow Square, London, SW7 3LTFlat 6, 81, Onslow Square, London, SW7 3LT
• Sold Jun 2014£4,260,000 | 3 Bed Flat52, Rose Square, London, SW3 6RS52, Rose Square, London, SW3 6RS
• Sold May 2014£3,900,000 | 3 Bed FlatFlat 3, 38, Onslow Square, London, SW7 3NSFlat 3, 38, Onslow Square, London, SW7 3NS
• Sold Apr 2014£1,287,500 | 3 Bed FlatFlat 14, 9-11 , Manson Place, London, SW7 5LTFlat 14, 9-11 , Manson Place, London, SW7 5LT
• Sold Jul 2011£900,000 | 4 Bed FlatFlat 5, 34, Onslow Gardens, London, SW7 3AQFlat 5, 34, Onslow Gardens, London, SW7 3AQ
• Sold Jan 2011£2,250,000 | 3 Bed FlatFlat 3, 89, Onslow Square, London, SW7 3LTFlat 3, 89, Onslow Square, London, SW7 3LT
• Sold Jan 2010£2,600,000 | 3 Bed FlatFlat 3, 14, Onslow Square, London, SW7 3NPFlat 3, 14, Onslow Square, London, SW7 3NP
• Sold Oct 2008£3,400,000 | 3 Bed Flat58, Onslow Gardens, London, SW7 3QA58, Onslow Gardens, London, SW7 3QA

Our analysis of the public data ranks Flat 10, 81, Onslow Square as the 57th largest and the 67th most expensive of the 321 addresses on Onslow Square, London, SW7.

Against the SW7 postcode district average, it is £742k more expensive than the typical property.

• Our Lady of Victories RC Primary School

  300 m away
• Oratory Roman Catholic Primary School

  400 m away
• Marlborough Primary School

  700 m away

• St. Thomas More Language College

  900 m away
• Chelsea Academy

  1.7 km away
• The London Oratory School

  1.7 km away

• South Kensington

  |

  200 m away
• Gloucester Road

  |

  500 m away
• Earl's Court

  |

  1.2 km away

Environment Agency data suggests this area has a Very Low risk of flooding.