Our Data Sources
47, Onslow Square has a single entry in the Land Registry from December 2020 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 47, Onslow Square, we estimate a market value of £3,615,690 and a rental value of £11,551 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £3,202,468 and £10,231 per month respectively.
Sold Prices
The most recent sale of 47, Onslow Square completed on 18th December 2020 at £4,950,000 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 24.7% over the period since December 2020.
- Sold Dec 2020£4,950,000
Similar Properties Sold Nearby
Since 2009 5 properties similar to 47, Onslow Square have sold within a radius of 270 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 1st July 2025, was Flat 1, 23, Sumner Place, London, SW7 3EG, a leasehold flat which sold for £2,190,000.
Read more about house prices in SW7.
- Sold Jul 2025£2,190,000 | 3 Bed FlatFlat 1, 23, Sumner Place, London, SW7 3EGFlat 1, 23, Sumner Place, London, SW7 3EG
- 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 Oct 2013£1,508,000 | 3 Bed FlatFlat 1, 9, Cromwell Place, London, SW7 2JNFlat 1, 9, Cromwell Place, London, SW7 2JN
- Sold May 2009£2,300,000 | 3 Bed FlatFlat 4, 51, Onslow Square, London, SW7 3LRFlat 4, 51, 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 £3,080,373, ranging from £420,921 to £7,556,222.
- 49 Onslow Square
3 Bed Flat | 7 m | Est. Value: £3,045,499
- Flat 4, 43 Onslow Square
4 Bed Flat | 12 m | Est. Value: £3,197,135
- 43D Onslow Square
1 Bed Flat | 12 m | Est. Value: £420,921
- Flat 1, 43 Onslow Square
4 Bed Flat | 12 m | Est. Value: £3,740,843
- Flat 3, 43 Onslow Square
4 Bed Flat | 12 m | Est. Value: £3,651,368
Location Comparison
Of the 321 addresses on Onslow Square, London, SW7, 47, Onslow Square comes out as the 106th largest and the 41st most expensive in our analysis of the public data.
It is also £1.381m 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.












