Over the past 31 years, there have been 73 property sales recorded in the SW7 3AL postcode area. The highest sale price reached £4,100,000, while the most recent sale was for a terraced maisonette sold in February 2026 for £3,700,000.

The estimated average property value in SW7 3AL currently stands at £1,524,989, which is approximately 88.4% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £17,540.

Property prices in SW7 3AL have fallen by 3.3% over the past year , with a total decrease of 2.1% over the past five years , and a long-term drop of 5.8% over the past decade .

The most common type of property sold in the area is flat, making up around 99% of transactions , followed by other.

Housing in SW7 3AL is predominantly owner-occupied, with an estimated 52% of homes being lived in by the owners.

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Property Sales

Flat 1, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 4bed
📐 883 sq ft
Today
£1,511,771
streetscan.co.uk estimate
7 Nov 2016
£1,750,000
9 May 1997
£215,000
More details

Flat 2, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£2,253,398
streetscan.co.uk estimate
21 Aug 1998
£550,000
7 Jul 1995
£425,000

Flat 3, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£1,433,939
streetscan.co.uk estimate
8 Nov 2000
£499,500
15 May 1997
£310,000

Flat 4, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 2bed
📐 603 sq ft
Today
£955,472
streetscan.co.uk estimate
25 Sep 2024
£1,080,000
16 Oct 2012
£825,000
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Flat 5, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£741,351
streetscan.co.uk estimate
12 Apr 2006
£390,000
30 Jun 1998
£240,000
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More details

Flat 6, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 624 sq ft
Today
£818,534
streetscan.co.uk estimate
4 Aug 2006
£450,000
18 Apr 2000
£315,000
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Flat 1, 19 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 990 sq ft
Today
£1,059,290
streetscan.co.uk estimate
8 Mar 2007
£679,000
16 Mar 2004
£495,000
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Flat 2, 19 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 1294 sq ft
Today
£1,838,044
streetscan.co.uk estimate
6 Sep 2022
£2,450,000
More details

Flat 3, 19 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 614 sq ft
Today
£1,610,372
streetscan.co.uk estimate
28 Jul 2023
£1,950,000
8 Jan 2019
£1,350,000
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More details

Flat 4, 19 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 624 sq ft
Today
£230,487
streetscan.co.uk estimate
20 Aug 2014
£275,000
4 Jan 2012
£847,500
View +3 more
More details

Flat 1, 20 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£1,406,667
streetscan.co.uk estimate
12 Jan 2000
£450,000
31 Jan 1995
£269,500

Flat 2, 20 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 5bed
📐 1292 sq ft
Today
£2,274,437
streetscan.co.uk estimate
18 Jul 2014
£2,711,000
14 Jun 2005
£837,500
More details

Flat 1, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£3,612,109
streetscan.co.uk estimate
25 Nov 2024
£4,100,000

Flat 10, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£973,846
streetscan.co.uk estimate
2 Feb 2004
£450,000
4 May 1995
£220,000

Flat 11, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 2bed
📐 1012 sq ft
Today
£1,396,208
streetscan.co.uk estimate
2 Dec 1999
£445,000
More details

Flat 12, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 6bed
📐 1948 sq ft
Today
£1,451,700
streetscan.co.uk estimate
5 Jan 1999
£364,645
More details

Flat 3, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 940 sq ft
Today
£1,948,445
streetscan.co.uk estimate
10 Jul 2013
£1,990,000
More details

Flat 4, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 980 sq ft
Today
£1,638,617
streetscan.co.uk estimate
5 Aug 2002
£730,000
More details

Flat 5, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 4bed
📐 1679 sq ft
Today
£3,686,895
streetscan.co.uk estimate
13 Feb 2026
£3,700,000
More details

Flat 7, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 5bed
📐 1410 sq ft
Today
£3,356,818
streetscan.co.uk estimate
16 Jun 2015
£3,850,000
26 Jul 2013
£1,745,000
View +1 more
More details

Flat 8, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 2bed
📐 592 sq ft
Today
£788,689
streetscan.co.uk estimate
19 Jul 2004
£385,000
21 Jul 1999
£250,000
More details

Flat 9, 21 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 2bed
📐 692 sq ft
Today
£303,620
streetscan.co.uk estimate
21 Dec 2020
£358,300
30 Aug 2019
£550,000
More details

Flat 1, 22 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£1,060,582
streetscan.co.uk estimate
4 Dec 2003
£475,000
27 Jun 1997
£340,000
24 Oct 1996
£240,000

Flat 2, 22 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£1,897,884
streetscan.co.uk estimate
4 Dec 2003
£850,000
24 Feb 1999
£585,000

Flat 1, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 710 sq ft
Today
£825,244
streetscan.co.uk estimate
21 Sep 2022
£1,100,000
23 Mar 2007
£750,000
View +1 more
More details

Flat 2, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 861 sq ft
Today
£844,880
streetscan.co.uk estimate
25 Sep 2017
£960,000
27 May 2009
£692,500
View +2 more
More details

Flat 3, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 936 sq ft
Today
£1,933,234
streetscan.co.uk estimate
22 Jan 2024
£2,160,000
7 Jun 1999
£534,000
View +2 more
More details

Flat 4, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£368,380
streetscan.co.uk estimate
7 Dec 2017
£450,000
20 Nov 2013
£485,000
28 Jun 2012
£345,500
10 Jul 2008
£380,000
28 Feb 2007
£220,000

Flat 7, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

Today
£1,226,438
streetscan.co.uk estimate
9 Aug 1996
£232,500

Flat 8, 24 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL

🏠 Flat
🛏️ 3bed
📐 384 sq ft
Today
£1,200,048
streetscan.co.uk estimate
5 Mar 2021
£1,301,000
1 Nov 2013
£860,000
View +3 more
More details

Area Insights

Data Sources

Properties at SW7 3AL appear seventy-three times in the Land Registry records, with the latest transaction recorded on 13 Feb 2026. It also has twenty-one Energy Performance Certificates (EPC) entries, the earliest dating back to 2 Mar 2012. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.