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9 Mostyn Gardens, London, NW10 5QU

25/2344Certificate of Lawfulness - ProposedRefused
Outline / PiP

Refused on 9 October 2025

Council decision: Certificate of Lawfulness - RefusedDelegated (officer decision)

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

Certificate of lawfulness for proposed erection of rear dormer, linked dormer to outrigger and x3 front rooflights to dwellinghouse

Received
12 August 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
Queens Park
Agent
IDEAL DESIGN LTD
  1. Received12 Aug
  2. Validated19 Aug
  3. Consult.14 Oct
  4. Target
  5. Decided9 Oct

Decided in 51 days (council typically 56)

About this application

This is an outline application for a dormer extension at 9 Mostyn Gardens, London, NW10 5QU. Brent has handled 1,485 applications of this type. This one was decided in 58 days. The site is in a conservation area. There have been 2 other applications at this address. In the past year there have been 264 applications across Queens Park. We hold 4,518 applications in total for the NW10 postcode area.

75% of outline 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

Application details

Postcode
NW10 5QU
Application type
Certificate of Lawfulness - Proposed
Scale / size
Small

Planning application dates

Date validated
19 August 2025
Last date for comments
14 October 2025

Applicant and agent

Agent
IDEAL DESIGN LTD
Architect profile
IDEAL DESIGN LIMITED
Agent address
116 Rushden Gardens, Ilford, Essex, IG5 0BN

Additional information

Planning Portal ID
PP-14250255
Documents
8
Constraints
1

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
    12 Aug

    Certificate of lawfulness for proposed erection of rear dormer, linked dormer to outrigger and x3 front…

    This applicationRefusedOutline25/2344
  2. 2025
    12 Aug

    Demolition of conservatory and store, proposed construction of single storey side to rear extension to…

    ApprovedHouseholderFiled alongside25/2347

Source: Brent

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

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