13 A St Johns Road,Isleworth,TW7 6NB Data via plota.co.uk
Proposal
Retrospective application for the erection of a rear roof extension and rear outrigger extension, and the installation of three front roof windows at Flat 13A, St John's Road. Data via plota.co.uk
Application progress
Approved on 27 Aug 2026 · Last checked 16 Sept 2026
Documents 12
Decision & officer reports 2
Plans & drawings 6
Application forms 1
Site constraints 6
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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.
Building
From the energy performance certificate lodged in July 2020, the latest held for this property. The building may have changed since. View the certificate
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Important details
How this decision compares
Decided in 56 days from validation, about the council's usual 54 days. 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
- 6 Jul 2026
- Comments by
- 27 Jul 2026
- Statutory expiry
- 27 Aug 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.
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.
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13 A St Johns Road,Isleworth,TW7 6NB
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