Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area  Export table	Last sold	Price paid	Floor area	£ per square metre	Type	Paid	m2	£/m2
Flat 63 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	25 Apr 2024	£5,000,000			Flat (3 bed)
Flat 89 15, Portman Square, Marble Arch, W1H 6LL	14 Dec 2023	£1,340,000	61 sqm	£21,967	Flat (1 bed)
Flat 41 15, Portman Square, Marble Arch, W1H 6LJ	23 Nov 2023	£975,000 B	102 sqm	£9,558	Flat (2 bed)
Flat 96 15, Portman Square, Marble Arch, W1H 6LL	01 Nov 2023	£1,200,000	61 sqm	£19,672	Flat (2 bed)
Flat 3 15, Portman Square, Marble Arch, W1H 6LJ	13 Oct 2023	£450,000			Flat (2 bed)
Flat 40 Orchard Court, Portman Square, Marble Arch, W1H 6LF	18 Sep 2023	£6,700,000 B	271 sqm	£24,723	Flat (4 bed)
Flat 16 15, Portman Square, Marble Arch, W1H 6LJ	14 Aug 2023	£2,715,000 B	144 sqm	£18,854	Flat (2 bed)
Flat 26 15, Portman Square, Marble Arch, W1H 6LJ	21 Jul 2023	£1,950,000	84 sqm	£23,214	Flat (2 bed)
Fourth Floor Premises North, 35 - 38, Portman Square, Marble Arch, W1H 6LR	25 May 2023	£294,000 B			Other
Flat 30 15, Portman Square, Marble Arch, W1H 6LJ	19 Jan 2023	£2,545,000	105 sqm	£24,238	Flat (3 bed)
Flat 72 15, Portman Square, Marble Arch, W1H 6LL	09 Dec 2022	£920,000 B	61 sqm	£15,081	Flat (1 bed)
Flat 23 Orchard Court, Portman Square, Marble Arch, W1H 6LE	01 Nov 2022	£10,000,000 B	383 sqm	£26,109	Flat (4 bed)
Flat 29 15, Portman Square, Marble Arch, W1H 6LJ	22 Jul 2022	£2,150,000	106 sqm	£20,283	Flat (3 bed)
Flat 37 15, Portman Square, Marble Arch, W1H 6LJ	01 Jul 2022	£2,000,000	144 sqm	£13,888	Flat (4 bed)
Flat 42 Orchard Court, Portman Square, Marble Arch, W1H 6LF -	29 Mar 2022	£5,400,000	249 sqm	£21,686	Flat (4 bed)
Flat 57 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	04 Mar 2022	£507,000	49 sqm	£10,346	Flat (2 bed)
Flat 20 Orchard Court, Portman Square, Marble Arch, W1H 6LE	18 Oct 2021	£8,000,000 B	360 sqm	£22,222	Other (4 bed)
Flat 2 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ	30 Sep 2021	£1,725,000	82 sqm	£21,036	Flat (2 bed)
Flat 67 15, Portman Square, Marble Arch, W1H 6LL	20 Jul 2021	£1,700,000	79 sqm	£21,518	Flat (2 bed)
Flat 101 15, Portman Square, Marble Arch, W1H 6LL	18 Mar 2021	£1,350,000	61 sqm	£22,131	Flat (2 bed)
Flat 66 15, Portman Square, Marble Arch, W1H 6LJ	26 Feb 2021	£2,000,000	107 sqm	£18,691	Flat (2 bed)
Flat 27 15, Portman Square, Marble Arch, W1H 6LJ	15 Jan 2021	£3,500,000			Flat (4 bed)
Flat 97 15, Portman Square, Marble Arch, W1H 6LL	16 Nov 2020	£750,000	110 sqm	£6,818	Flat (2 bed)
Flat 10 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	30 Sep 2020	£6,100,000	253 sqm	£24,110	Flat (4 bed)
Flat 19 15, Portman Square, Marble Arch, W1H 6LJ	16 Jul 2020	£3,150,000	133 sqm	£23,684	Flat
Flat 17 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ	24 Apr 2020	£1,375,000	58 sqm	£23,706	Flat (1 bed)
Flat 100 15, Portman Square, Marble Arch, W1H 6LL	20 Jan 2020	£1,430,000	113 sqm	£12,654	Flat (2 bed)
Flat 50 Orchard Court, Portman Square, Marble Arch, W1H 6LG	29 Nov 2019	£8,812,500 B	308 sqm	£28,612	Flat (5 bed)
Flat 49 Orchard Court, Portman Square, Marble Arch, W1H 6LG	29 Nov 2019	£8,437,500 B			Flat (6 bed)
Flat 5 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ -	29 Nov 2019	£825,000 B	60 sqm	£13,750	Flat (1 bed)
Flat 63 Fitzhardinge House, Portman Square -	£5,000,000 Apr-2024
Flat 89 15, Portman Square	£1,340,000 Dec-2023	61	21,967
Flat 41 15, Portman Square	£975,000 B Nov-2023	102	9,558
Flat 96 15, Portman Square	£1,200,000 Nov-2023	61	19,672
Flat 3 15, Portman Square	£450,000 Oct-2023
Flat 40 Orchard Court, Portman Square	£6,700,000 B Sep-2023	271	24,723
Flat 16 15, Portman Square	£2,715,000 B Aug-2023	144	18,854
Flat 26 15, Portman Square	£1,950,000 Jul-2023	84	23,214
Fourth Floor Premises North, 35 - 38, Portman Square	£294,000 B May-2023
Flat 30 15, Portman Square	£2,545,000 Jan-2023	105	24,238
Flat 72 15, Portman Square	£920,000 B Dec-2022	61	15,081
Flat 23 Orchard Court, Portman Square	£10,000,000 B Nov-2022	383	26,109
Flat 29 15, Portman Square	£2,150,000 Jul-2022	106	20,283
Flat 37 15, Portman Square	£2,000,000 Jul-2022	144	13,888
Flat 42 Orchard Court, Portman Square -	£5,400,000 Mar-2022	249	21,686
Flat 57 Fitzhardinge House, Portman Square -	£507,000 Mar-2022	49	10,346
Flat 20 Orchard Court, Portman Square	£8,000,000 B Oct-2021	360	22,222
Flat 2 Fitzhardinge House, Portman Square	£1,725,000 Sep-2021	82	21,036
Flat 67 15, Portman Square	£1,700,000 Jul-2021	79	21,518
Flat 101 15, Portman Square	£1,350,000 Mar-2021	61	22,131
Flat 66 15, Portman Square	£2,000,000 Feb-2021	107	18,691
Flat 27 15, Portman Square	£3,500,000 Jan-2021
Flat 97 15, Portman Square	£750,000 Nov-2020	110	6,818
Flat 10 Orchard Court, Portman Square -	£6,100,000 Sep-2020	253	24,110
Flat 19 15, Portman Square	£3,150,000 Jul-2020	133	23,684
Flat 17 Fitzhardinge House, Portman Square	£1,375,000 Apr-2020	58	23,706
Flat 100 15, Portman Square	£1,430,000 Jan-2020	113	12,654
Flat 50 Orchard Court, Portman Square	£8,812,500 B Nov-2019	308	28,612
Flat 49 Orchard Court, Portman Square	£8,437,500 B Nov-2019
Flat 5 Fitzhardinge House, Portman Square -	£825,000 B Nov-2019	60	13,750

The data above for Portman 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 Portman Square, Marble Arch is £18,883 sqm (£1,754 per sq ft), this is calculated from sold house prices of the 13 most recent sales.
There are roughly 127 homes on Portman Square, we would have expected roughly 18 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 13 property sales in Portman Square, averaging approximately 3 home sales per year .
The average size of all the properties on Portman Square is 102 m2 (1,097 sqft).

*Land Registry 'Category B: Additional Price Paid entry'.