REF: SW1X9HL/WILLIAM/STREET/1
1 William Street
SW1X 9HL, LONDON, CITY OF WESTMINSTER
Last Sold Price
£2,550,000
30 September 2025 · Flat/Maisonette · Leasehold
-£12,650,000 (-83.2%) since first recorded sale
Energy Performance
Current
D
→
Potential
D
Floor Area
344m²
Rooms
0
Type
Flat (End-Terrace)
Age
2021
Annual Costs
Heating£1,803/yr
Hot Water£97/yr
Lighting£148/yr
CO₂ Emissions5.5t/yr
Walls: Average thermal transmittance 0.31 W/m-¦K
Roof: (other premises above)
Windows: Multiple glazing throughout
Heating: Community scheme
Fuel:
Inspected 17/12/2021
Price History — Land Registry
-£12,650,000(-83.2% since first recorded sale)
| Date | Price |
|---|---|
| 30 Sept 2025 | £2,550,000 |
| 12 Mar 2024 | £2,650,000 |
| 29 Sept 2023 | £15,200,000 |
Crime Near SW1X 9HL
2crimes reported near this postcode (2026-03)
Anti-Social Behaviour
1
Other Theft
1