Flat 2, 43, Onslow Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 May 2022.

The property is not connected to mains gas and has single glazed windows. It is heated using community scheme.

According to HM Land Registry, Flat 2, 43, Onslow Square was last sold on 10th July 2023 for £3,750,000 and was recorded as a leasehold flat.

The property has only had this single sale since 1995.

Since July 2023, the market for similar properties has dropped by 26.3%.

• Sold Jul 2023£3,750,000

According to the Land Registry and our network of Estate Agents, there have been 12 sales of properties similar to Flat 2, 43, Onslow Square within a radius of 270 metres since 2010.

The most recent example is 47, Rose Square, London, SW3 6RS, a leasehold flat which sold for £3,500,000 on the 4th April 2025.

Read more about house prices in SW7.

• Sold Apr 2025£3,500,000 | 3 Bed Flat47, Rose Square, London, SW3 6RS47, Rose Square, London, SW3 6RS
• Sold Sep 2024£3,700,000 | 4 Bed Flat2, Onslow Square, London, SW7 3NP2, Onslow Square, London, SW7 3NP
• Sold Apr 2024£4,100,000 | 3 Bed Flat44, Rose Square, London, SW3 6RS44, Rose Square, London, SW3 6RS
• Sold Sep 2021£4,100,000 | 4 Bed FlatFlat 3, 43, Onslow Square, London, SW7 3LRFlat 3, 43, Onslow Square, London, SW7 3LR
• Sold Dec 2019£4,225,000 | 3 Bed Flat26, Rose Square, London, SW3 6RS26, Rose Square, London, SW3 6RS
• Sold Feb 2017£2,250,000 | 3 Bed Flat21, Sydney Mews, London, SW3 6HL21, Sydney Mews, London, SW3 6HL
• Sold Apr 2015£4,250,000 | 4 Bed FlatFlat 7, 81, Onslow Square, London, SW7 3LTFlat 7, 81, Onslow Square, London, SW7 3LT
• Sold Sep 2014£3,900,000 | 3 Bed FlatFlat 4, Crescent Mansions 113, Fulham Road, London, SW3 6RLFlat 4, Crescent Mansions 113, Fulham Road, London, SW3 6RL
• Sold Sep 2014£3,750,000 | 4 Bed FlatFlat 1, 2, Cranley Place, London, SW7 3ABFlat 1, 2, Cranley Place, London, SW7 3AB
• Sold Dec 2013£5,100,000 | 4 Bed FlatFlat 1, 43, Onslow Square, London, SW7 3LRFlat 1, 43, Onslow Square, London, SW7 3LR
• Sold Oct 2011£4,350,000 | 4 Bed FlatFlat 4, 43, Onslow Square, London, SW7 3LRFlat 4, 43, Onslow Square, London, SW7 3LR
• Sold Nov 2010£3,770,000 | 3 Bed Flat34, Rose Square, London, SW3 6RS34, Rose Square, London, SW3 6RS

Onslow Square, London, SW7 has a total of 321 addresses. According to our analysis of all the public data, Flat 2, 43, Onslow Square is the 17th largest and the 35th most expensive property on the street.

When compared to the postcode district it is £1.571m more expensive than the average property in SW7.

• Oratory Roman Catholic Primary School

  400 m away
• Our Lady of Victories RC Primary School

  400 m away
• Marlborough Primary School

  500 m away

• St. Thomas More Language College

  800 m away
• Chelsea Academy

  1.8 km away
• The London Oratory School

  1.9 km away

• South Kensington

  |

  100 m away
• Gloucester Road

  |

  600 m away
• Knightsbridge

  |

  1.1 km away

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