W1H 6LJ · Portman Square — sold prices, council tax and EPCs

What homes here actually sold for

Address	Sold	Price
Flat 66, 15 Portman Square	Oct 2025	£2,700,000
Flat 54, 15 Portman Square	Jul 2025	£2,100,000
Flat 1, 15 Portman Square	Feb 2025	£25,000
Flat 41, 15 Portman Square	Nov 2023	£975,000
Flat 3, 15 Portman Square	Oct 2023	£450,000
Flat 16, 15 Portman Square	Aug 2023	£2,715,000
Flat 26, 15 Portman Square	Jul 2023	£1,950,000
Flat 30, 15 Portman Square	Jan 2023	£2,545,000
Flat 29, 15 Portman Square	Jul 2022	£2,150,000
Flat 37, 15 Portman Square	Jul 2022	£2,000,000
Flat 66, 15 Portman Square	Feb 2021	£2,000,000
Flat 27, 15 Portman Square	Jan 2021	£3,500,000
Flat 19, 15 Portman Square	Jul 2020	£3,150,000
Flat 19, 15 Portman Square	Jun 2018	£3,015,000
Flat 35, 15 Portman Square	Feb 2018	£2,252,056
Flat 26, 15 Portman Square	Jan 2018	£700,000
Flat 47, 15 Portman Square	Oct 2017	£2,100,000
Flat 56, 15 Portman Square	Jul 2017	£1,385,000
Flat 35, 15 Portman Square	Aug 2016	£1,500,000
Flat 49, 15 Portman Square	Jul 2016	£2,100,000

Source: HM Land Registry Price Paid Data — the price recorded on the deed, not an estimate. Showing the 20 most recent of 60.

Median sale price by year

Year	Sales	Median
2017	2	£1,742,500
2018	3	£2,252,056
2020	1	£3,150,000
2021	2	£2,750,000
2022	2	£2,075,000
2023	5	£1,950,000
2025	3	£2,100,000

A year with one or two sales is those sales, not a trend. Source: HM Land Registry.

Council tax bands here

Band A — 2 homesBand D — 2 homesBand E — 3 homesBand F — 4 homesBand G — 31 homesBand H — 19 homes

12 homes here look banded above comparable neighbours.

Flat 33-34 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 57-58 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 51-52 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 27 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 55 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 31 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 49 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 37 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 61 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 25 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 43 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower
Flat 45-46 At 15 Portman Square, London, W1h 6lj	band H, neighbours typically G	40 of 54 lower

Worth checking rather than acting on. A review can move a band down and it can move one up, and you can check any address free at gov.uk. This compares like with like - numbered houses against numbered houses, flats against flats - because a named house on the same street is usually simply a bigger house.

Source: Valuation Office Agency. Bands are 1991 values in England, 2003 in Wales.

Energy efficiency

C — 23D — 10E — 4

Typical home here: 105 m², 4 habitable rooms — median of 37 assessed homes.

Source: the EPC register. Only homes assessed since 2008 appear, so this is a sample of the street, not all of it.