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7, Hillside Gardens, Harrow, HA3 9UW

25/2274Householder planning permissionRefused
Householder

Refused on 1 October 2025

3 reasons for refusal

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.

Proposal

Single Storey side and rear wraparound extension

Submitted
6 August 2025
  1. Received6 Aug
  2. Validated
  3. Consult.
  4. Target
  5. Decided1 Oct

Decided in 56 days (council typically 56)

About this application

This is a planning application for an extension at 7, Hillside Gardens, Harrow, HA3 9UW. Brent has handled 514 applications of this type. This one was decided in 56 days. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 163 applications across Kenton. We hold 5,586 applications in total for the HA3 postcode area.

84% of householder planning permission applications at London Borough of Brent 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

Why it was refused

  1. The proposed ground floor rear extension by virtue of its excessive eaves height and depth would unduly impact the amenities of the neighbouring occupier at No.6 Hillside Gardens, by virtue of its overbearing appearance and increased sense of enclosure, contrary to policy DMP1 of Brent's Local Plan 2019-2041 and the guidance set out in Brent's Residential Extensions and Alterations SPD 2025.
  2. The proposed raised patio, by reason of its excessive height and position in relation to the shared boundary with No. 6 and No. 8 Hillside Gardens, would result in a loss of privacy to neighbouring gardens, and therefore be detrimental to their residential amenity. The development fails to comply with the guidance set out in Brent's Residential Extensions and Alterations SPD (2025) and is contrary to Policy DMP1 of the Brent Local Plan 2019-2041.
  3. The submission has failed to demonstrate the relationship of the proposed development to existing off-site trees. In the absence of an suitable information to demonstrate otherwise, the proposed extension would have a detrimental impact on nearby trees. As such the proposed development fails to comply with Policy BGI2 and DMP1 of the Brent Local Plan 2019-2041.

From the council's decision notice.

Application details

Postcode
HA3 9UW
Application type
Householder planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 for HMOs
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation areas, listed buildings, tree preservation orders, 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
    6 Aug

    Single Storey side and rear wraparound extension

    This applicationRefusedHouseholder25/2274
  2. 2025
    1 Aug

    Certificate of lawfulness for proposed hip to gable roof end extension, loft conversion with rear dormer, 2x…

    ApprovedCertificate of Lawfulness - ProposedFiled alongside25/2242

Source: Brent

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

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