William Street is almost entirely semi-detached houses. The median sale price is £118,000, about 51% below the typical NN9 sale. Per square metre of floor space it comes to about £2,564, below the district's £2,722. Too few recent sales to read a street-level trend, but across NN9 prices have been easing over the last few years. The record shows 15 sales across 6 homes since 2002.
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William Street prices over time
Median sold price on the street by year, from 15 HM Land Registry records. Years with no recorded sales are left blank rather than joined up.
Median sold price by year vs the NN9 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 NN9 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. *This street's figures cover all recorded sales (fewer than 3 in the last 8 years).
William Street's £118,000 median sits about 51% below NN9's £242,998; on floor space it runs £2,564/m² against the district's £2,722/m² (-6%).
Street and NN9 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.
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More streets in NN9
Sold-price profiles for nearby streets, and the wider NN9 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.