« Sold prices in Isleworth

Sold prices on Thornbury Avenue, Isleworth

18 recorded sales · 11 properties · 2015–2026

Homes on Thornbury Avenue, Isleworth have a median sold price of £677,500 across 18 recorded sales since 2015. Semi-detached homes are the most common here, at a median of £735,000. That's 142% above the England & Wales average of around £280,000. Within Isleworth as a whole it is 27% above the town’s average sold price across all recorded sales of £492,866. Properties here have changed hands 1.6 times on average. The most recent sale was £300,000 in Jan 2026; the highest on record was £903,000 in 2021. Recorded prices are roughly up 6% between the earliest and most recent sales.
£677,500
Median sold price
£624,361
Average
£300,000–£903,000
Range
18
Sales recorded

By property type

TypeMedianSales
Semi-detached£735,0008
Flat/Maisonette£360,0007
Detached£760,0003

Thornbury Avenue falls in postcode district TW7 — see sold prices across the wider area.

Properties on Thornbury Avenue

£300,000
10, ORCHARD COURT, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NG
Flat/MaisonetteJan 2026
£720,000
20, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
Semi-detachedFeb 2024
£797,000
28, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
Semi-detachedJan 2023
£900,000
14, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
Semi-detachedOct 2022
£700,000
21, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NF
Semi-detachedAug 2022
£900,000
32, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
DetachedNov 2021
£903,000
16, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
Semi-detachedJun 2021
£760,000
31, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NF
DetachedOct 2020
£750,000
3, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NF
Semi-detachedOct 2017
£675,000
29, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NF
DetachedSept 2017
£680,000
6, THORNBURY AVENUE, ISLEWORTH, HOUNSLOW, GREATER LONDON, TW7 4NQ
Semi-detachedFeb 2015

Other streets in Isleworth

How these figures are calculated. Every sale on this page is a completed transaction from HM Land Registry Price Paid data, registered between 2015 and 2026. We show the median rather than the average wherever there are enough sales, so one unusually high or low sale doesn’t distort the picture. Sales take time to be registered, so the most recent months are provisional. Prices are as recorded and are not adjusted for inflation; a street’s figures reflect the mix of what actually sold there.