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 56 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	08 Nov 2019	£1,610,000 B	84 sqm	£19,166	Flat (2 bed)
Flat 82 15, Portman Square, Marble Arch, W1H 6LL	23 Jul 2019	£2,050,000	106 sqm	£19,339	Flat (3 bed)
Flat 16 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ -	22 Mar 2019	£572,000	111 sqm	£5,153	Flat (2 bed)
Flat 9 Orchard Court, Portman Square, Marble Arch, W1H 6LE -	26 Sep 2018	£5,950,000	249 sqm	£23,895	Flat (4 bed)
Flat 43 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	23 May 2018	£250,000 B	74 sqm	£3,378	Flat (2 bed)
Flat 45 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH	01 Mar 2018	£634,900 B			Other (2 bed)
Flat 35 15, Portman Square, Marble Arch, W1H 6LJ	01 Feb 2018	£2,252,056	107 sqm	£21,047	Flat (2 bed)
Flat 7 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ -	08 Jan 2018	£1,846,934	86 sqm	£21,475	Flat (2 bed)
Flat 112 15, Portman Square, Marble Arch, W1H 6LL	01 Nov 2017	£3,350,000 B	130 sqm	£25,769	Flat (4 bed)
Flat 47 15, Portman Square, Marble Arch, W1H 6LJ	16 Oct 2017	£2,100,000	108 sqm	£19,444	Flat (3 bed)
Flat 120 15, Portman Square, Marble Arch, W1H 6LL	21 Aug 2017	£660,000	50 sqm	£13,200	Flat (1 bed)
Flat 56 15, Portman Square, Marble Arch, W1H 6LJ	31 Jul 2017	£1,385,000	80 sqm	£17,312	Flat (2 bed)
Flat 12 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ	10 May 2017	£725,000			Flat (1 bed)
Flat 115 15, Portman Square, Marble Arch, W1H 6LL	02 Mar 2017	£1,000,000	110 sqm	£9,090	Flat (2 bed)
Flat 34 Orchard Court, Portman Square, Marble Arch, W1H 6LF -	23 Feb 2017	£7,740,000	274 sqm	£28,248	Flat (4 bed)
Flat 102 15, Portman Square, Marble Arch, W1H 6LL	02 Dec 2016	£1,150,000	63 sqm	£18,253	Flat (2 bed)
Flat 49 15, Portman Square, Marble Arch, W1H 6LJ	15 Jul 2016	£2,100,000	139 sqm	£15,107	Flat (4 bed)
Flat 68 15, Portman Square, Marble Arch, W1H 6LL	31 Mar 2016	£2,000,000 B	128 sqm	£15,625	Flat (2 bed)
Flat 87 15, Portman Square, Marble Arch, W1H 6LL	09 Dec 2015	£1,700,000	103 sqm	£16,504	Flat (2 bed)
Flat 44 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	01 Dec 2015	£2,100,000	87 sqm	£24,137	Flat (1 bed)
Flat 42 15, Portman Square, Marble Arch, W1H 6LJ	15 May 2015	£2,000,000			Flat (2 bed)
Flat 33 15, Portman Square, Marble Arch, W1H 6LJ	12 Mar 2015	£1,820,000			Flat
Flat 31 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LH -	28 Mar 2014	£1,200,000	56 sqm	£21,428	Flat (1 bed)
Flat 51 15, Portman Square, Marble Arch, W1H 6LJ	17 Oct 2013	£5,250,000			Flat
Flat 6 15, Portman Square, Marble Arch, W1H 6LJ	18 Sep 2013	£975,000			Flat (1 bed)
Flat 31 15, Portman Square, Marble Arch, W1H 6LJ	06 Sep 2013	£1,900,000	142 sqm	£13,380	Flat (4 bed)
Flat 39 Orchard Court, Portman Square, Marble Arch, W1H 6LF -	18 Jun 2013	£5,750,000			Flat (4 bed)
Flat 22 Fitzhardinge House, Portman Square, Marble Arch, W1H 6LQ -	24 May 2013	£1,400,000	87 sqm	£16,091	Flat (2 bed)
Flat 104 15, Portman Square, Marble Arch, W1H 6LL	08 May 2013	£564,000			Flat (2 bed)
Flat 71 15, Portman Square, Marble Arch, W1H 6LL	03 May 2013	£735,000	63 sqm	£11,666	Flat (1 bed)
Flat 56 Fitzhardinge House, Portman Square -	£1,610,000 B Nov-2019	84	19,166
Flat 82 15, Portman Square	£2,050,000 Jul-2019	106	19,339
Flat 16 Fitzhardinge House, Portman Square -	£572,000 Mar-2019	111	5,153
Flat 9 Orchard Court, Portman Square -	£5,950,000 Sep-2018	249	23,895
Flat 43 Fitzhardinge House, Portman Square -	£250,000 B May-2018	74	3,378
Flat 45 Fitzhardinge House, Portman Square	£634,900 B Mar-2018
Flat 35 15, Portman Square	£2,252,056 Feb-2018	107	21,047
Flat 7 Fitzhardinge House, Portman Square -	£1,846,934 Jan-2018	86	21,475
Flat 112 15, Portman Square	£3,350,000 B Nov-2017	130	25,769
Flat 47 15, Portman Square	£2,100,000 Oct-2017	108	19,444
Flat 120 15, Portman Square	£660,000 Aug-2017	50	13,200
Flat 56 15, Portman Square	£1,385,000 Jul-2017	80	17,312
Flat 12 Fitzhardinge House, Portman Square	£725,000 May-2017
Flat 115 15, Portman Square	£1,000,000 Mar-2017	110	9,090
Flat 34 Orchard Court, Portman Square -	£7,740,000 Feb-2017	274	28,248
Flat 102 15, Portman Square	£1,150,000 Dec-2016	63	18,253
Flat 49 15, Portman Square	£2,100,000 Jul-2016	139	15,107
Flat 68 15, Portman Square	£2,000,000 B Mar-2016	128	15,625
Flat 87 15, Portman Square	£1,700,000 Dec-2015	103	16,504
Flat 44 Fitzhardinge House, Portman Square -	£2,100,000 Dec-2015	87	24,137
Flat 42 15, Portman Square	£2,000,000 May-2015
Flat 33 15, Portman Square	£1,820,000 Mar-2015
Flat 31 Fitzhardinge House, Portman Square -	£1,200,000 Mar-2014	56	21,428
Flat 51 15, Portman Square	£5,250,000 Oct-2013
Flat 6 15, Portman Square	£975,000 Sep-2013
Flat 31 15, Portman Square	£1,900,000 Sep-2013	142	13,380
Flat 39 Orchard Court, Portman Square -	£5,750,000 Jun-2013
Flat 22 Fitzhardinge House, Portman Square -	£1,400,000 May-2013	87	16,091
Flat 104 15, Portman Square	£564,000 May-2013
Flat 71 15, Portman Square	£735,000 May-2013	63	11,666

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 the sold price of the 13 most recent sales.
There are about 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'.