Apartment 6, 1 William Street
SW1X 9HL, Kensington and Chelsea. A leasehold flat.
The only sale of this flat recorded since January 2023.
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The sales further down show what similar homes nearby sold for.
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Home Report
Everything about Apartment 6, 1 William Street in one PDF
Things to check before you offer, every sale in SW1X 9 in the last 12 months, crime, schools and stations.
Found for Apartment 6, 1 William Street
Against SW1X
+£21,413,654
Above the typical SW1X flat, £1,836,000, Sep 2025 to Aug 2026.
£1,836,000 This flat
£23,250,000
On William Street
1st of 6
Flat sales since 2023, by price. The street's typical is £8,925,000.
SW1X by year
£1,550,000
Typical SW1X flat in 2026 so far, down 42.9% since 2023.
Resold in SW1X
9 of 11 up
SW1X flats sold twice since 2023. Typical change +59.0%.
Watch William Street
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