3 bed flat for sale Onslow Gardens, Chelsea, London
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About this property
Direct views across the private gardens form the backdrop to this beautifully proportioned three-bedroom duplex on Onslow Gardens. Set across the ground and lower-ground floors of a white stucco-fronted period building, the apartment extends to approximately 1,565 sq ft and has unusually generous entertaining space, high ceilings and a secluded patio. The ground floor is centred on an impressive open-plan kitchen and reception room measuring more than 38 ft in length.
Key features
- AC
Floorplan
Price guide
£1,629 per sq ft, above the middle of recent sales in SW7 (£899–£2,307, 10th–90th percentile, 360 sales over 24 months).
Lowest and highest are the 10th and 90th percentiles of 360 homes sold in SW7 over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in SW7 →
Location
Onslow Gardens, Chelsea, London, SW7 3AG
- Council tax
- Band D (Approx £1,667/year)The agent has not stated the band, so band D is shown as the local reference: Kensington and Chelsea's 2026/27 area average, including the typical parish precept. The actual band and any discounts change the bill.
Mortgage and stamp duty
A £2,295,000 mortgage. Most lenders would want a household income of about £510,000 to support it.
A guide only, for a capital repayment mortgage. The rate you are offered and what you can borrow depend on your circumstances and a full application with a lender or broker. Your home may be repossessed if you do not keep up repayments on your mortgage.
Historic sold prices nearby
HM Land Registry sales in SW7 3AG. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| Flat 3, 26, Onslow Gardens Flat / maisonette | Flat / maisonette | Mar 2025 | 1,496 sq ft £2,339/sq ft | 1,496 sq ft | £2,339 | £3,500,000 |
| Flat 6, 28, Onslow Gardens Flat / maisonette | Flat / maisonette | Jun 2021 | 355 sq ft £1,013/sq ft | 355 sq ft | £1,013 | £360,000 |
| Flat 3, 29, Onslow Gardens Flat / maisonette | Flat / maisonette | Nov 2020 | — | — | — | £2,350,000 |
| Flat 6, 28, Onslow Gardens Flat / maisonette | Flat / maisonette | Sept 2017 | 355 sq ft £1,196/sq ft | 355 sq ft | £1,196 | £425,000 |
| Flat 1, 28, Onslow Gardens Flat / maisonette | Flat / maisonette | Sept 2017 | 1,399 sq ft £1,461/sq ft | 1,399 sq ft | £1,461 | £2,045,000 |
| Flat 4, 28, Onslow Gardens Flat / maisonette | Flat / maisonette | Jul 2017 | 657 sq ft £747/sq ft | 657 sq ft | £747 | £490,500 |
| Flat 6, 27, Onslow Gardens Flat / maisonette | Flat / maisonette | Oct 2015 | 334 sq ft £1,858/sq ft | 334 sq ft | £1,858 | £620,000 |
| 4, 28, Onslow Gardens Flat / maisonette | Flat / maisonette | Jul 2012 | 657 sq ft £1,093/sq ft | 657 sq ft | £1,093 | £717,500 |
All sales on Onslow Gardens → All sold prices in Kensington and Chelsea →
Area insights
The neighbourhood around this property.



