Our Data Sources
Flat 1, 43, Onslow Square has a single entry in the Land Registry from December 2013 and a single entry in the EPC database dated December 2012.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Flat 1, 43, Onslow Square, we estimate a market value of £3,927,885 and a rental value of £13,056 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £3,478,984 and £11,564 per month respectively.
Energy Efficiency
Flat 1, 43, Onslow Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Dec 2012.
The property is not connected to mains gas and has single glazed windows. It is heated using community scheme.
Sold Prices
The most recent sale of Flat 1, 43, Onslow Square completed on 20th December 2013 at £5,100,000 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 dropped by 32.0% over the period since December 2013.
- Sold Dec 2013£5,100,000
Similar Properties Sold Nearby
Since 2010 10 properties similar to Flat 1, 43, Onslow Square have sold within a radius of 270 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th April 2025, was 47, Rose Square, London, SW3 6RS, a leasehold flat which sold for £3,500,000.
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 Aug 2024£4,100,000 | 4 Bed Flat4, Onslow Square, London, SW7 3NP4, 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 Jul 2023£3,750,000 | 4 Bed FlatFlat 2, 43, Onslow Square, London, SW7 3LRFlat 2, 43, Onslow Square, London, SW7 3LR
- Sold Sep 2021£4,100,000 | 4 Bed FlatFlat 3, 43, Onslow Square, London, SW7 3LRFlat 3, 43, Onslow Square, London, SW7 3LR
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £3,059,135, ranging from £420,921 to £7,556,222.
- Flat 4, 43 Onslow Square
4 Bed Flat | 0 m | Est. Value: £3,197,135
- 43D Onslow Square
1 Bed Flat | 0 m | Est. Value: £420,921
- Flat 3, 43 Onslow Square
4 Bed Flat | 0 m | Est. Value: £3,651,368
- Flat 2, 43 Onslow Square
4 Bed Flat | 0 m | Est. Value: £3,633,464
- 43A Onslow Square
2 Bed Flat | 0 m | Est. Value: £1,743,246
Location Comparison
Of the 321 addresses on Onslow Square, London, SW7, Flat 1, 43, Onslow Square comes out as the 15th largest and the 31st most expensive in our analysis of the public data.
It is also £1.678m more expensive than the average property across the SW7 district.
More reading links
Schools Nearby
- Oratory Roman Catholic Primary School400 m away
- Our Lady of Victories RC Primary School400 m away
- Marlborough Primary School500 m away
- St. Thomas More Language College800 m away
- Chelsea Academy1.8 km away
- The London Oratory School1.9 km away
More reading links
Public Transport Nearby
- South Kensington|100 m away
- Gloucester Road|600 m away
- Knightsbridge|1.1 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
