8 Merton Avenue Hillingdon UB10 9BN
Proposal
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window and porch to front (Application for a Certificate of Lawful Development for a Proposed Development)
- Received
- 24 October 2014
- Decided
- 21 November 2014
- Council
- London Borough of Hillingdon
- Ward
- HILLINGDON EAST
- ReceivedSubmitted24 Oct
- ValidatedValidated24 Oct
- Consult.Consultation
- TargetTarget Date19 Dec
- DecidedDecided21 Nov
Decided in 28 days (council typically 56)
This is a full planning application for a dormer extension at 8 MERTON AVENUE HILLINGDON UB10 9BN. Hillingdon has handled 4,983 applications of this type and approves 81% of them, typically deciding them in 56 days. This one was decided in 28 days, 4 weeks quicker than Hillingdon's median. There have been 4 other applications at this address. We hold 1,335 applications in total for the UB10 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Hillingdon
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Planning history at this site
4 other applications at this property, newest first.
- 201622 Jun
Single storey outbuilding to rear for use as a gym
ApprovedFull70137/APP/2016/2418 - 20155 Oct
Porch to front and installation of metal gate to side (Retrospective)
ApprovedFull70137/APP/2015/3690 - 201421 Aug
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof…
RefusedFull70137/APP/2014/3012 - 201411 Jul
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by…
ApprovedFull70137/APP/2014/2461
Planning constraints
Designations at the address point. Ones next to the site may also apply.
- Article 4 direction: Residential extensions
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
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