Hillingdon

20886/APP/2025/2742Householder planning permissionRefused

Householder

Proposal

Conversion of roof to habitable use to include 2 x side dormers, 4 x side window dormers, hip to gable end front and rear extension, gable end windows, raised ridge height, erection of single storey side and rear extension, and front porch.

Received: 29 October 2025
Decided: 2 January 2026
Council: London Borough of Hillingdon

Approximate site (title boundary)

Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

ReceivedSubmitted29 Oct
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided2 Jan

Decided in 65 days (council typically 56)

8 weeks typical decision time in Hillingdon89% of householder planning permission applications approved

This is a planning application for a rear extension at Hillingdon. Hillingdon has handled 1,243 applications of this type and approves 89% of them, typically deciding them in 56 days. This one was decided in 65 days, 9 days longer than Hillingdon's median. There have been 166 other applications at this address. In the past year there have been 108 applications across COLHAM & COWLEY.

Application Details

Reference

20886/APP/2025/2742

Address

Hillingdon

Local Authority

Hillingdon

Application Type

Householder planning permission

Decision Status

Rejected

Applicant & Agent

Planning Application Dates

Date Decided

2 January 2026

Date Submitted

29 October 2025

Planning Decision

Publicity

Appeal

Additional Information

Coordinates

51.530678, -0.452067

Enriching application data

2/3

Council recordsAppealsFlood risk

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

2 other applications at this property, newest first.

Planning constraints

Designations that overlap or adjoin the site outline.

Article 4 direction: Houses of Multiple Occupation (HMOs)+1 more
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.

© 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.

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