SW1X 9HL
William Street, London
Median, last 3 years
£2,650,000
5 sales, Jun 2023 – May 2026
Last standard sale
£1,500,000
20 Jan 2026
Standard sales
5
since 2023
SW1X district median
£2,497,500
64 sales, 12 months to May 2026
Medians count standard sales only (Price Paid category A). Additional entries (category B) - repossessions, buy-to-lets with an identifiable mortgage, and purchases by companies and other non-private buyers - are listed below but left out.
Median price by year
The paler 2026 bar covers January to August only, and its latest months are still filling in as sales are registered.
Paler bars rest on fewer than three sales, so they show which homes sold more than how prices moved.
Show the figures
| Year | Median | Sales |
|---|---|---|
| 2026 (to August) (few sales) | £1,500,000 | 1 |
| 2025 (few sales) | £12,900,000 | 2 |
| 2024 (few sales) | £2,650,000 | 1 |
| 2023 (few sales) | £15,200,000 | 1 |
Sale history (5 records · 1 home sold more than once)
| Address | Date | Type | Price |
|---|---|---|---|
|
APARTMENT 9, 1, WILLIAM STREET
20 Jan 2026 · Flat / maisonette
· Leasehold
Previously £2,550,000 (Sep 2025) · −41%
|
20 Jan 2026 | Flat / maisonette · Leasehold | £1,500,000 |
|
APARTMENT 6, 1, WILLIAM STREET
21 Nov 2025 · Flat / maisonette
· Leasehold
|
21 Nov 2025 | Flat / maisonette · Leasehold | £23,250,000 |
|
APARTMENT 9, 1, WILLIAM STREET
30 Sep 2025 · Flat / maisonette
· Leasehold
|
30 Sep 2025 | Flat / maisonette · Leasehold | £2,550,000 |
|
APARTMENT 7, 1, WILLIAM STREET
12 Mar 2024 · Flat / maisonette
· Leasehold
|
12 Mar 2024 | Flat / maisonette · Leasehold | £2,650,000 |
|
APARTMENT 4, 1, WILLIAM STREET
29 Sep 2023 · Flat / maisonette
· Leasehold
|
29 Sep 2023 | Flat / maisonette · Leasehold | £15,200,000 |