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 23 Orchard Court, Portman Square, Marble Arch, W1H 6LE	01 Nov 2022	£10,000,000 B	383 m² 4122 sqft	£26,109 £2,425	Flat (4 bed)
Flat 20 Orchard Court, Portman Square, Marble Arch, W1H 6LE	18 Oct 2021	£8,000,000 B	360 m² 3875 sqft	£22,222 £2,064	Other (4 bed)
Flat 10 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	30 Sep 2020	£6,100,000	253 m² 2723 sqft	£24,110 £2,239	Flat (4 bed)
Flat 9 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	26 Sep 2018	£5,950,000	249 m² 2680 sqft	£23,895 £2,219	Flat (4 bed)
Flat 2 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	06 Oct 2010	£1,825,000	148 m² 1593 sqft	£12,331 £1,145	Flat (2 bed)
Flat 28 Orchard Court, Portman Square, Marble Arch, W1H 6LE	25 Jul 2007	£5,600,000	361 m² 3885 sqft	£15,512 £1,441	Flat (4 bed)
Flat 5 Orchard Court, Portman Square, Marble Arch, W1H 6LE	30 Jan 2006	£1,900,000			Flat (4 bed)
Flat 21 Orchard Court, Portman Square, Marble Arch, W1H 6LE	07 Feb 2002	£1,850,000	364 m² 3918 sqft	£5,082 £472	Flat (4 bed)
Flat 12 Orchard Court, Portman Square, Marble Arch, W1H 6LE	10 Jul 2001	£1,185,000			Flat (4 bed)
Flat 16 Orchard Court, Portman Square, Marble Arch, W1H 6LE	18 May 2001	£1,150,000			Flat (4 bed)
Flat 11 Orchard Court, Portman Square, Marble Arch, W1H 6LE	04 Jan 2001	£925,000			Flat (4 bed)
Flat 24 Orchard Court, Portman Square, Marble Arch, W1H 6LE	29 Jan 1999	£1,350,000			Flat (4 bed)
Flat 19 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	12 Mar 1997	£1,500,000	356 m² 3831 sqft	£4,213 £391	Flat (4 bed)
Flat 1 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	17 May 1995	£485,000			Flat (4 bed)
Flat 17 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	22 Feb 1995	£750,000	218 m² 2346 sqft	£3,440 £319	Flat (4 bed)
Flat 23 Orchard Court, Portman Square	£10,000,000 B Nov-2022	383 4122	26,109 2,425
Flat 20 Orchard Court, Portman Square	£8,000,000 B Oct-2021	360 3875	22,222 2,064
Flat 10 Orchard Court, Portman Square -	£6,100,000 Sep-2020	253 2723	24,110 2,239
Flat 9 Orchard Court, Portman Square -	£5,950,000 Sep-2018	249 2680	23,895 2,219
Flat 2 Orchard Court, Portman Square -	£1,825,000 Oct-2010	148 1593	12,331 1,145
Flat 28 Orchard Court, Portman Square	£5,600,000 Jul-2007	361 3885	15,512 1,441
Flat 5 Orchard Court, Portman Square	£1,900,000 Jan-2006
Flat 21 Orchard Court, Portman Square	£1,850,000 Feb-2002	364 3918	5,082 472
Flat 12 Orchard Court, Portman Square	£1,185,000 Jul-2001
Flat 16 Orchard Court, Portman Square	£1,150,000 May-2001
Flat 11 Orchard Court, Portman Square	£925,000 Jan-2001
Flat 24 Orchard Court, Portman Square	£1,350,000 Jan-1999
Flat 19 Orchard Court, Portman Square -	£1,500,000 Mar-1997	356 3831	4,213 391
Flat 1 Orchard Court, Portman Square -	£485,000 May-1995
Flat 17 Orchard Court, Portman Square -	£750,000 Feb-1995	218 2346	3,440 319

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 £18,991 sqm (£1,764 per sq ft), this is calculated from sold property prices of the 9 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 9 property sales in Portman Square, averaging about 2 home sales per year .
The average size of all the properties on Portman Square is 103 m2 (1,108 sqft).