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Northwood

11577/APP/2025/1375Non-Material AmendmentApproved
Discharge / amendments

Approved on 10 June 2025

Approximate location: the centre of the postcode, not the exact property.

Proposal

Non-material amendment to planning permission ref. 11577/APP/2023/2373, dated 10/11/23 (Erection of part single storey, part two storey rear extensions, two storey front and side extensions and new patio to the rear. AC unit to side elevation. Conversion of roof space into habitable accommodation including a new roof and 2 x rear dormers and 1 x front dormer. Alterations to fenestration, materials and existing access and crossover (revised description)) to amend the design and depth of the porch canopy.

Submitted
16 May 2025
  1. Received16 May
  2. Validated
  3. Consult.
  4. Target
  5. Decided10 Jun

Decided in 25 days (council typically 56)

About this application

This is a planning application for a dormer extension at Northwood. Hillingdon has handled 73 applications of this type. This one was decided in 25 days, 4 weeks quicker than Hillingdon's typical decision time. There have been 189 other applications at this address. In the past year there have been 145 applications across NORTHWOOD 2022. We hold 932 applications in total for the HA6 postcode area.

84% of non-material amendment applications at London Borough of Hillingdon were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
HA6 1HF
Application type
Non-Material Amendment

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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 2026-11-03. 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.

Associated applications

  1. 2025
    16 May

    Non-material amendment to planning permission ref. 11577/APP/2023/2373

    This applicationApprovedNon-material amendment11577/APP/2025/1375
  2. 2023
    9 Aug

    Erection of part single storey, part two storey rear extensions, two storey front and side extensions and new…

    ApprovedFullPart of11577/APP/2023/2373

Source: Hillingdon

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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