« Sold prices in SW1X

1, WILLIAM STREET, LONDON, CITY OF WESTMINSTER, GREATER LONDON, SW1X 9HL

£1,500,000
Last sale price
Jan 2026
Last sold
5
Records at this address

Approximate location (postcode centre). Map data © OpenStreetMap contributors.

Local planning constraints

Conservation areaAlbert Gate

Planning designations from planning.data.gov.uk and Environment Agency flood-risk data, © Crown copyright and database right, under the Open Government Licence v3.0. Coverage is incomplete and depends on the local authority — absence here does not guarantee a property is unaffected. Always check official sources.

How this compares

Averages cover every recorded sale in SW1X 9HL (2023–2026) and are not adjusted for house-price changes over that period — where the market has risen, older sales pull the average below today’s values, so treat this as a rough guide rather than a like-for-like comparison.

£9,030,000
Average in SW1X 9HL (2023–2026)
£9,030,000
Average on WILLIAM STREET (2023–2026)
-83%
below postcode average

Full transaction history

This address covers more than one registered unit or interest (for example separate flats, or a leasehold and the freehold). The Property column shows each one. These are separate Land Registry entries, not repeat sales of one home.

PropertyDate soldPrice paidProperty typeTenureNew build
APARTMENT 9, 120 January 2026£1,500,000Flat/MaisonetteLeaseholdNo
APARTMENT 6, 121 November 2025£23,250,000Flat/MaisonetteLeaseholdNo
APARTMENT 9, 130 September 2025£2,550,000Flat/MaisonetteLeaseholdNo
APARTMENT 7, 112 March 2024£2,650,000Flat/MaisonetteLeaseholdNo
APARTMENT 4, 129 September 2023£15,200,000Flat/MaisonetteLeaseholdNo

More sold prices in SW1X Sold prices in LONDON