William Street is a street almost entirely of flats. Homes here typically change hands around £218,750 — roughly 37% below the SL1 norm. Too few recent sales to read a street-level trend, but across SL1 prices have been rising over the last few years. With 64 sales across 63 homes since 2021, the street turns over frequently.
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William Street prices over time
Median sold price on the street by year, from 64 HM Land Registry records. Years with no recorded sales are left blank rather than joined up.
Median sold price by year vs the SL1 district trend. Street medians on thin years reflect few sales — hover a dot for the exact figure.
How William Street compares
William Street against the SL1 district's busiest streets, the district itself, and the official UK House Price Index for the wider area.
Median sold price and sale count over the last 8years for the district's busiest streets.
William Street's £218,750 median sits about 37% below SL1's £350,000.
Street and SL1 figures are medians of HM Land Registry sales; the England figures are the UK House Price Index mix-adjusted average — a different basis, so compare direction rather than levels between the two.
Every recorded sale on William Street
Individual transactions as recorded by HM Land Registry, newest first.
Get the full £5 report on the exact home — valuation vs its own sale history, EPC & running costs, flood/mining risk, planning, schools and more.
More streets in SL1
Sold-price profiles for nearby streets, and the wider SL1 area guide.
Contains HM Land Registry data © Crown copyright and database right 2026, including the UK House Price Index. EPC data © Crown copyright. Licensed under the Open Government Licence v3.0. Figures summarise recorded sales on the street and are not a valuation of any individual home.