Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
Flat 16 27, Onslow Square, South Kensington, SW7 3NH -	12 Nov 2024	£275,000	73 m² 785 sqft	£3,767 £349	Flat (1 bed)
Flat 2 23, Onslow Square, South Kensington, SW7 3NJ	01 Nov 2024	£2,825,000	117 m² 1259 sqft	£24,145 £2,243	Flat
Flat 12 25, Onslow Square, South Kensington, SW7 3NJ	11 Oct 2024	£560,000	116 m² 1248 sqft	£4,827 £448	Flat (3 bed)
4, Onslow Square, South Kensington, SW7 3NP	21 Aug 2024	£4,100,000 B	197 m² 2120 sqft	£20,812 £1,933	Other (2 bed)
Flat 10 14, Onslow Square, South Kensington, SW7 3NP	24 Jul 2024	£1,975,000	114 m² 1227 sqft	£17,324 £1,609	Flat (2 bed)
Flat 12 27, Onslow Square, South Kensington, SW7 3NH -	17 Apr 2024	£1,400,000	90 m² 968 sqft	£15,555 £1,445	Flat (2 bed)
Flat 1 24, Onslow Square, South Kensington, SW7 3NS	06 Mar 2024	£1,730,000	71 m² 764 sqft	£24,366 £2,263	Flat (2 bed)
Flat 14 27, Onslow Square, South Kensington, SW7 3NH	09 Feb 2024	£1,493,500	93 m² 1001 sqft	£16,059 £1,491	Flat (2 bed)
Flat 2 27, Onslow Square, South Kensington, SW7 3NH -	20 Nov 2023	£1,050,000	67 m² 721 sqft	£15,671 £1,455	Flat (2 bed)
Flat 11 25, Onslow Square, South Kensington, SW7 3NJ -	28 Jul 2023	£1,600,000	94 m² 1011 sqft	£17,021 £1,581	Flat (2 bed)
Flat 3 23, Onslow Square, South Kensington, SW7 3NJ	19 May 2023	£2,800,000 B	124 m² 1334 sqft	£22,580 £2,097	Flat
Flat 1 17, Onslow Square, South Kensington, SW7 3NJ	05 Aug 2022	£3,600,000 B	116 m² 1248 sqft	£31,034 £2,883	Flat
Flat 11 27, Onslow Square, South Kensington, SW7 3NH	10 Mar 2022	£1,130,000 B	71 m² 764 sqft	£15,915 £1,478	Flat (2 bed)
Flat 6 27, Onslow Square, South Kensington, SW7 3NH	14 Oct 2021	£430,000 B	101 m² 1087 sqft	£4,257 £395	Flat (2 bed)
Flat 7 6, Onslow Square, South Kensington, SW7 3NP -	30 Jun 2021	£1,800,000	78 m² 839 sqft	£23,076 £2,143	Flat (2 bed)
Flat 4 46, Onslow Square, South Kensington, SW7 3NX	31 Mar 2021	£4,750,000 B	171 m² 1840 sqft	£27,777 £2,580	Flat (3 bed)
Flat 3 24, Onslow Square, South Kensington, SW7 3NS -	30 Mar 2021	£1,700,000	72 m² 775 sqft	£23,611 £2,193	Flat (2 bed)
Flat 1 1, Onslow Square, South Kensington, SW7 3NJ	22 Mar 2021	£2,300,000			Flat
Flat 1a 25, Onslow Square, South Kensington, SW7 3NJ -	27 Oct 2020	£560,000	33 m² 355 sqft	£16,969 £1,576	Flat (1 bed)
Flat 2 38, Onslow Square, South Kensington, SW7 3NS -	21 May 2020	£6,700,000			Flat (4 bed)
Flat 2 52, Onslow Square, South Kensington, SW7 3NX	31 Oct 2018	£2,650,000 B	113 m² 1216 sqft	£23,451 £2,178	Flat (2 bed)
Flat 1 38, Onslow Square, South Kensington, SW7 3NS	28 Jun 2018	£3,000,000	113 m² 1216 sqft	£26,548 £2,466	Flat (2 bed)
Flat 5 24, Onslow Square, South Kensington, SW7 3NS -	25 May 2018	£1,950,000	72 m² 775 sqft	£27,083 £2,516	Flat (2 bed)
Flat 3 32, Onslow Square, South Kensington, SW7 3NS	08 Dec 2017	£7,550,000 B			Flat (3 bed)
Flat 10 27, Onslow Square, South Kensington, SW7 3NH -	15 Sep 2017	£1,700,000	95 m² 1022 sqft	£17,894 £1,662	Flat (2 bed)
Garage, Onslow Square, South Kensington, SW7 3NJ	31 Jan 2017	£40,000,000 B			Other
Flat 5 20, Onslow Square, South Kensington, SW7 3NP	30 Jan 2017	£6,200,000 B			Other
Flat 8 14, Onslow Square, South Kensington, SW7 3NP -	20 Jul 2016	£3,600,000	122 m² 1313 sqft	£29,508 £2,741	Flat (2 bed)
Flat 2 44, Onslow Square, South Kensington, SW7 3NX	08 Jun 2016	£4,140,000	130 m² 1399 sqft	£31,846 £2,958	Flat
19, Onslow Square, South Kensington, SW7 3NJ -	24 Mar 2016	£4,400,000 B	145 m² 1560 sqft	£30,344 £2,819	Flat (3 bed)
Flat 16 27, Onslow Square -	£275,000 Nov-2024	73 785	3,767 349
Flat 2 23, Onslow Square	£2,825,000 Nov-2024	117 1259	24,145 2,243
Flat 12 25, Onslow Square	£560,000 Oct-2024	116 1248	4,827 448
4, Onslow Square	£4,100,000 B Aug-2024	197 2120	20,812 1,933
Flat 10 14, Onslow Square	£1,975,000 Jul-2024	114 1227	17,324 1,609
Flat 12 27, Onslow Square -	£1,400,000 Apr-2024	90 968	15,555 1,445
Flat 1 24, Onslow Square	£1,730,000 Mar-2024	71 764	24,366 2,263
Flat 14 27, Onslow Square	£1,493,500 Feb-2024	93 1001	16,059 1,491
Flat 2 27, Onslow Square -	£1,050,000 Nov-2023	67 721	15,671 1,455
Flat 11 25, Onslow Square -	£1,600,000 Jul-2023	94 1011	17,021 1,581
Flat 3 23, Onslow Square	£2,800,000 B May-2023	124 1334	22,580 2,097
Flat 1 17, Onslow Square	£3,600,000 B Aug-2022	116 1248	31,034 2,883
Flat 11 27, Onslow Square	£1,130,000 B Mar-2022	71 764	15,915 1,478
Flat 6 27, Onslow Square	£430,000 B Oct-2021	101 1087	4,257 395
Flat 7 6, Onslow Square -	£1,800,000 Jun-2021	78 839	23,076 2,143
Flat 4 46, Onslow Square	£4,750,000 B Mar-2021	171 1840	27,777 2,580
Flat 3 24, Onslow Square -	£1,700,000 Mar-2021	72 775	23,611 2,193
Flat 1 1, Onslow Square	£2,300,000 Mar-2021
Flat 1a 25, Onslow Square -	£560,000 Oct-2020	33 355	16,969 1,576
Flat 2 38, Onslow Square -	£6,700,000 May-2020
Flat 2 52, Onslow Square	£2,650,000 B Oct-2018	113 1216	23,451 2,178
Flat 1 38, Onslow Square	£3,000,000 Jun-2018	113 1216	26,548 2,466
Flat 5 24, Onslow Square -	£1,950,000 May-2018	72 775	27,083 2,516
Flat 3 32, Onslow Square	£7,550,000 B Dec-2017
Flat 10 27, Onslow Square -	£1,700,000 Sep-2017	95 1022	17,894 1,662
Garage, Onslow Square	£40,000,000 B Jan-2017
Flat 5 20, Onslow Square	£6,200,000 B Jan-2017
Flat 8 14, Onslow Square -	£3,600,000 Jul-2016	122 1313	29,508 2,741
Flat 2 44, Onslow Square	£4,140,000 Jun-2016	130 1399	31,846 2,958
19, Onslow Square -	£4,400,000 B Mar-2016	145 1560	30,344 2,819

The data above for Onslow Square can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Onslow Square, South Kensington is £15,415 sqm (£1,432 per sq ft), this is calculated from the Land Registry sold price of the 9 most recent sales.
The majority of homes in South Kensington are now selling for between £14,320 and £20,830 per square metre (£1,330 and £1,935 per square foot) , find out more in this local analysis of SW7 3 (South Kensington) house prices.
There are approximately 93 homes on Onslow Square, we would have expected roughly 13 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 9 property sales in Onslow Square, averaging about 2 home sales per year .
The average size of all the properties on Onslow Square is 103 m2 (1,108 sqft).