Thirlmere Avenue is mostly semi-detached houses. The median sale price is £148,975, about 8% above the typical L21 sale. On floor area that works out near £1,794 per square metre, above the district's £1,587. Recent sales are too thin to call a trend for the street itself; L21 prices as a whole have been rising. HM Land Registry records 8 sales across 6 homes since 2006 — homes here come up rarely.
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Thirlmere Avenue prices over time
Median sold price on the street by year, from 8 HM Land Registry records. Years with no recorded sales are left blank rather than joined up.
Median sold price by year vs the L21 district trend. Street medians on thin years reflect few sales — hover a dot for the exact figure.
How Thirlmere Avenue compares
Thirlmere Avenue against the L21 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).
Thirlmere Avenue's £148,975 median sits about 8% above L21's £138,000; on floor space it runs £1,794/m² against the district's £1,587/m² (+13%).
Street and L21 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.
Prices by property type
Median sold price by property type on Thirlmere Avenue.
Every recorded sale on Thirlmere Avenue
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 L21
Sold-price profiles for nearby streets, and the wider L21 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.