Ickenham
Proposal
Conversion of roof space to habitable use to include rear dormer, front and rear roof lights, conversion of roof from hip to gable end with a new gable end window, erection of ground and first floor extension, amendments to fenestration, and the removal of the 2 chimney stacks.
- Received
- 1 July 2026
- Decided
- 12 October 2026 · Refusal
- Council
- London Borough of Hillingdon
- Ward
- ICK/HAM & S HF/D 22
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- ReceivedReceived1 Jul
- ValidatedValidated1 Jul
- Consult.Consultation
- TargetTarget Date9 Oct
- DecidedDecided12 Oct
Decided in 103 days (council typically 56)
This is a planning application for a dormer extension at Ickenham. Hillingdon has handled 1,272 applications of this type and approves 89% of them, typically deciding them in 56 days. This one was decided in 103 days, 7 weeks longer than Hillingdon's median. There have been 118 other applications at this address. In the past year there have been 157 applications across ICK/HAM & S HF/D 22.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Why it was refused
- The proposed ground and first floor front/side extension and hip-to-gable roof conversion, by reason of their overall size, scale, bulk and design, together with the lack of set in from the side boundary and limited setback from the front building line would result in an overly dominant and visually intrusive form of development. The proposal would fail to appear as a subordinate addition to the host dwelling and would be detrimental to its architectural composition and to the character and appearance of the street scene and surrounding area. The development would therefore fail to comply with Policy BE1 of the Hillingdon Local Plan: Part One - Strategic Policies (November 2012) and Policies DMHB 11, DMHB 12 and DMHD 1 of the Hillingdon Local Plan: Part Two - PDECHHODB (ODB) 234/APP/2026/1652 Development Management Policies (January 2020
From the council's decision notice.
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 constraints
Designations that overlap or adjoin the site outline.
- 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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