40 Adelaide Terrace, Great West Road, Brentford, TW8 9PQ Data via plota.co.uk
Proposal
Erection of a single storey part rear and a part rear infill extension to allow conversion of the house into two self contained flats Data via plota.co.uk
Application progress
Approved on 9 Mar 2026 · Last checked 20 Sept 2026
Documents 11
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 5
Application forms 1
Site constraints 4
Checked on 2 November 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 2
Last sold for £550,000 in June 2018. Terraced house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in December 2018, the latest held for this property. The building may have changed since. View the certificate
Every application in Hounslow - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
How this decision compares
Decided in 60 days from validation, 5 days slower than Hounslow's median of 55 for extensions. Approved, as 81% of extensions here are.
Plota live figures for extensions decided by Hounslow in the last twelve months, from validation. Hounslow decision record →
Consultation & key dates
- Consultation
- 14 Jan 2026
- Comments by
- 4 Feb 2026
- Statutory expiry
- 5 Mar 2026
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Hounslow is slower than most councils at deciding householder applications, ranking #203 out of 296. 47% of applications have the time limit extended, above the 41% national average. Hounslow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 75% approved vs 90% nationally.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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40 Adelaide Terrace, Great West Road, Brentford, TW8 9PQ
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Freehold owner, on paid plans
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