38 Thornton Avenue Hounslow W4 1QG
Certificate of Lawfulness for erection of a rear roof extension with roof windows to front and rear, an increase in height of roof to create an additional storey to the rear including 2 roof windows and extension of existing basement under the footprint of the house.
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Progress
Application details
- Reference
- P/2014/0095
- Local authority
- Hounslow
- Postcode
- W4 1QG
- Ward
- Chiswick Homefields (Pre May 2022)
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 17 Jan 2014
- Validated
- 17 Jan 2014
- Target decision
- 14 Mar 2014
- Decided
- 26 Feb 2014
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
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
- 38 Thornton Avenue Hounslow W4 1QGPermittedNext door
- 38 Thornton Avenue Hounslow W4 1QGUnknownNext door
- 40 Thornton Avenue Hounslow W4 1QGPermittedNext door
- 36 Thornton Avenue Hounslow W4 1QGUnknownNext door
- 36 Thornton Avenue Hounslow W4 1QGPermittedNext door
- 34 Thornton Avenue Hounslow W4 1QGPermittedNext door