Sold price history
The typical home in Portman Square last sold for £550,000. Over the past decade prices are +26% in cash — but −11% once inflation is stripped out.
Cash prices in Portman Square look like they’ve climbed +26% in ten years. Adjust for inflation and the real gain is −11% — the difference is inflation, not wealth. Toggle the chart to see it.
The most recent homes sold here, straight from the HM Land Registry record.
| Date | Address | Type | Price | £/m² |
|---|---|---|---|---|
| 7 October 2025 | Flat 66, 15 Portman Square· W1H 6LJ | FlatLeasehold |
| £2,700,000 |
| £25,234 |
| 11 July 2025 | Flat 54, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,100,000 | £20,000 |
| 19 June 2024 | Flat 68, 15 Portman Square· W1H 6LL | FlatLeasehold | £2,000,000 | £15,625 |
| 25 April 2024 | Flat 63, Fitzhardinge House Portman Square· W1H 6LH | FlatLeasehold | £5,000,000 | — |
| 14 December 2023 | Flat 89, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,340,000 | £20,938 |
| 1 November 2023 | Flat 96, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,200,000 | £19,672 |
| 13 October 2023 | Flat 3, 15 Portman Square· W1H 6LJ | FlatLeasehold | £450,000 | £18,750 |
| 21 July 2023 | Flat 26, 15 Portman Square· W1H 6LJ | FlatLeasehold | £1,950,000 | £23,214 |
| 19 January 2023 | Flat 30, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,545,000 | £24,238 |
| 22 July 2022 | Flat 29, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,150,000 | £20,283 |
| 1 July 2022 | Flat 37, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,000,000 | £13,889 |
| 29 March 2022 | Flat 42, Orchard Court Portman Square· W1H 6LF | FlatLeasehold | £5,400,000 | £21,687 |
| 4 March 2022 | Flat 57, Fitzhardinge House Portman Square· W1H 6LH | FlatLeasehold | £507,000 | £10,347 |
| 30 September 2021 | Flat 2, Fitzhardinge House Portman Square· W1H 6LQ | FlatLeasehold | £1,725,000 | £21,037 |
| 20 July 2021 | Flat 67, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,700,000 | £21,519 |
| 18 March 2021 | Flat 101, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,350,000 | £22,131 |
| 26 February 2021 | Flat 66, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,000,000 | £18,692 |
| 15 January 2021 | Flat 27, 15 Portman Square· W1H 6LJ | FlatLeasehold | £3,500,000 | — |
| 16 November 2020 | Flat 97, 15 Portman Square· W1H 6LL | FlatLeasehold | £750,000 | £6,818 |
| 30 September 2020 | Flat 10, Orchard Court Portman Square· W1H 6LE | FlatLeasehold | £6,100,000 | £24,111 |
| 16 July 2020 | Flat 19, 15 Portman Square· W1H 6LJ | FlatLeasehold | £3,150,000 | — |
| 24 April 2020 | Flat 17, Fitzhardinge House Portman Square· W1H 6LQ | FlatLeasehold | £1,375,000 | £22,177 |
| 17 February 2020 | Flat 89, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,260,000 | £19,688 |
| 20 January 2020 | Flat 100, 15 Portman Square· W1H 6LL | FlatLeasehold | £1,430,000 | £12,655 |
| 23 July 2019 | Flat 82, 15 Portman Square· W1H 6LL | FlatLeasehold | £2,050,000 | £19,340 |
| 22 March 2019 | Flat 16, Fitzhardinge House Portman Square· W1H 6LQ | FlatLeasehold | £572,000 | £5,153 |
| 26 September 2018 | Flat 9, Orchard Court Portman Square· W1H 6LE | FlatLeasehold | £5,950,000 | — |
| 15 June 2018 | Flat 19, 15 Portman Square· W1H 6LJ | FlatLeasehold | £3,015,000 | — |
| 1 February 2018 | Flat 35, 15 Portman Square· W1H 6LJ | FlatLeasehold | £2,252,056 | £21,047 |
| 18 January 2018 | Flat 26, 15 Portman Square· W1H 6LJ | FlatLeasehold | £700,000 | £8,333 |
Category A (standard) sales. £/m² shown where an EPC floor-area match exists.
The median sold price in Portman Square is £550,000, based on 271 sales recorded by HM Land Registry.
Over the past decade prices in Portman Square are +26% in cash terms, and −11% after adjusting for inflation (ONS CPIH).
The median is £6,483 per square metre, from EPC floor-area records.
Figures update monthly from HM Land Registry. The most recent sale here was recorded on 7 October 2025; the latest two months may be incomplete while sales register.
Contains HM Land Registry data © Crown copyright and database right, licensed under the Open Government Licence v3.0. Figures are the median of Category A (standard) sold prices; real-terms values use ONS CPIH. See our methodology.
Sold prices for England & Wales from the official record — with the real-terms story competitors leave out.
Contains HM Land Registry data © Crown copyright and database right, licensed under the Open Government Licence v3.0. Set in Fraunces & IBM Plex Sans.