Our Data Sources
Flat 9, 21, Onslow Gardens has 2 entries in the Land Registry , most recently in December 2020 and a single entry in the EPC database dated July 2010.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate Flat 9, 21, Onslow Gardens would be worth £1,538,896, with a potential rental value of £4,372 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,363,023, with a rental value of £3,872 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 9, 21, Onslow Gardens has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Jul 2010.
The property is connected to mains gas and has single glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
Flat 9, 21, Onslow Gardens last changed hands on 21st December 2020, selling for £358,300. 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 22.3% since December 2020.
- Sold Dec 2020£358,300
- Sold Aug 2019£550,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 29 sales of comparable properties within 230 metres of Flat 9, 21, Onslow Gardens across the last 2 years.
Most recently, 11, Rose Square, London, SW3 6RS, a leasehold flat, sold at £1,280,000 on the 25th November 2025.
Read more about house prices in SW7.
- Sold Nov 2025£1,280,000 | 2 Bed Flat11, Rose Square, London, SW3 6RS11, Rose Square, London, SW3 6RS
- Sold Jul 2023£1,950,000 | 2 Bed FlatFlat 3, 19, Onslow Gardens, London, SW7 3ALFlat 3, 19, Onslow Gardens, London, SW7 3AL
- Sold Sep 2022£2,450,000 | 3 Bed FlatFlat 2, 19, Onslow Gardens, London, SW7 3ALFlat 2, 19, Onslow Gardens, London, SW7 3AL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks Flat 9, 21, Onslow Gardens as the 353rd largest and the 228th most expensive of the 504 addresses on Onslow Gardens, London, SW7.
Against the SW7 postcode district average, it is £626k less expensive than the typical property.
More reading links
Schools Nearby
- Our Lady of Victories RC Primary School300 m away
- Oratory Roman Catholic Primary School500 m away
- Bousfield Primary School600 m away
- St. Thomas More Language College1.1 km away
- Chelsea Academy1.5 km away
- The London Oratory School1.5 km away
More reading links
Public Transport Nearby
- South Kensington|400 m away
- Gloucester Road|500 m away
- Earl's Court|1.1 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
