Thornton Avenue Hounslow W4 1QG
Conversion of two residential flats back into a single-family dwelling, adding a basement extension and ground floor rear extension, as well as a full refurbishment of the interior, including replacement windows.
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Progress
Application details
- Reference
- P/2026/0194
- Local authority
- Hounslow
- Postcode
- W4 1QG
- Ward
- Chiswick Homefields
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 28 Jan 2026
- Validated
- 28 Jan 2026
- Comments close
- 25 Feb 2026
- Target decision
- 10 Apr 2026
- Decided
- 9 Apr 2026
Estimated project value
£160k–£265k
Based on the 66.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 66m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 22 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £3,000,0007 months ago28 Jan 2026
- 6 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £3,000,00013 months ago18 Jul 2025
- 26 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £1,710,0002 years ago22 May 2024
- FLAT 2, 16 THORNTON AVENUE, LONDON, W4 1QGFlat or maisonette · Leasehold · £350,0002 years ago5 Apr 2024
- 40 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £2,455,0002 years ago12 Dec 2023
- 28 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £1,750,0003 years ago7 Feb 2023
- GROUND FLOOR FLAT, 14 THORNTON AVENUE, LONDON, W4 1QGFlat or maisonette · Leasehold · Not a standard market sale · £772,5005 years ago24 Nov 2020
- 22 THORNTON AVENUE, LONDON, W4 1QGSemi-detached · £2,000,0006 years ago16 Oct 2019
Homes here go for about £2,000,000 — the median of the last 7 market sales in W4 1QG, £350,000 to £3,000,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
- 26 Thornton Avenue HounslowPermittedNext door
- 26 Thornton Avenue HounslowPendingNext door
- 28 Thornton Avenue Hounslow W4 1QGPermittedNext door
- 28 Thornton Avenue Hounslow W4 1QGPendingNext door
- 24 Thornton Avenue Hounslow W4 1QGPermittedNext door
- 24 Thornton Avenue Hounslow W4 1QGPendingNext door