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59 Trevelyan Crescent, Harrow, HA3 0RG

26/0459Non-material amendmentsRefused
Discharge / amendments

Refused on 23 March 2026

Council decision: Permission RefusedDelegated (officer decision)1 reason 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

Non-material amendment (fenestration) of Householder reference 23/2769 dated 11 March, 2024, for Proposed demolition of existing side dormer and erection of first floor side and rear extension and single storey outbuilding in rear garden of the dwellinghouse.

Received
23 February 2026
Decision level
Delegated (officer decision)
Ward
Kenton
Agent
Malathy Design
  1. Received23 Feb
  2. Validated23 Feb
  3. Consult.23 Mar
  4. Target
  5. Decided23 Mar

Decided in 28 days (council typically 56)

About this application

This is an application to amend a permission at 59 Trevelyan Crescent, Harrow, HA3 0RG. Brent has handled 367 applications of this type. This one was decided in 28 days, 4 weeks quicker than Brent's typical decision time. The site is in a conservation area. There have been 2 other applications at this address. In the past year there have been 163 applications across Kenton. We hold 5,584 applications in total for the HA3 postcode area.

68% of amendment 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.See what's approved near your address

Why it was refused

  1. The proposed alterations to the front-facing windows of the main dwelling and the porch fenestration cannot be considered non-material under Section 96A of the Town and Country Planning Act 1990. These elements form part of the principal elevation facing the street and were not included within the scope of the previously approved planning permission (ref. 23/2769). This would not be in line with policies DMP1 and BHC1 of Brent's Local Plan 2019-2041 and the guidance set out within the Mount Stewart Conservation Area Design Guide.

From the council's decision notice.

Application details

Postcode
HA3 0RG
Application type
Non-material amendments
Scale / size
Small

Planning application dates

Date validated
23 February 2026
Last date for comments
23 March 2026

Applicant and agent

Agent
Malathy Design
Architect profile
MALATHY GROUP LIMITED
Agent address
Studio 33, Oxgate House, Oxgate Lane, Brent Cross, NW2 7FQ

Additional information

Planning Portal ID
PP-14724853
Comments
0
Documents
9
Constraints
1

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Mount Stewart
  • Article 4 direction: Article 4 for HMOs+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage 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. 2026
    23 Feb

    Non-material amendment (fenestration) of Householder reference 23/2769

    This applicationRefusedNon-material amendment26/0459
  2. 2023
    21 Aug

    Proposed demolition of existing side dormer and erection of first floor side and rear extension a...

    ApprovedApplicationPart of23/2769

Source: Brent

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

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