18 Hartland Road, London, NW6 6BJ
Refused on 11 February 2026
Council decision: Certificate of Lawfulness - RefusedDelegated (officer decision)
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 rear dormer extension with Juliet balcony and dormer to rear outrigger, alterations to fenestration, 2x front rooflights and installation of air-conditioning system to the rear of the dwellinghouse.
- Received
- 17 December 2025
- Decision level
- Delegated (officer decision)
- Council
- London Borough of Brent
- Ward
- Queens Park
- Agent
- arks design studio limited
- ReceivedReceived17 Dec
- ValidatedValidated17 Dec
- Consult.Consultation11 Feb
- TargetTarget Date
- DecidedDecided11 Feb
Decided in 56 days (council typically 56)
About this application
This is an outline application for a dormer extension at 18 Hartland Road, London, NW6 6BJ. Brent has handled 1,485 applications of this type. This one was decided in 56 days. The site is in a conservation area. There has been 1 other application at this address. In the past year there have been 264 applications across Queens Park. We hold 3,470 applications in total for the NW6 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.Planning something similar? See what gets approved on your street
Application details
- Postcode
- NW6 6BJ
- Application type
- Certificate of Lawfulness - Proposed
- Scale / size
- Small
Planning application dates
- Date validated
- 17 December 2025
- Last date for comments
- 11 February 2026
Applicant and agent
- Agent
- arks design studio limited
- Architect profile
- ARKS DESIGN STUDIO LIMITED
- Agent address
- 37 Regal House, Royal Crescent, Ilford, IG2 7JY
Site constraints
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.
Planning history at this site
4 other applications at this property, newest first.
- 202621 Aug
NMA APPLICATION TO VARY CONDITION 1 (APPROVED PLANS) OF 19/1272
Certificate of Lawfulness - GrantedVariation of conditions (s73)26/0654 - 202618 May
Certificate of lawfulness for proposed air conditioning unit to rear of dwellinghouse
ApprovedCertificate of Lawfulness - Proposed26/1260 - 202624 Mar
Certificate of lawfulness for proposed rear dormer extension with Juliet balcony and dormer extension to rear…
ApprovedLawful development: Proposed use26/0654 - 202519 Sep
Reversion of property from 2 self-contained flats to a single-family dwellinghouse, including replacement…
ApprovedFull Planning Permission25/2676
Source: Brent
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 18A & 18B Hartland Road, London, NW6 6BJ25/2676 · FullApproved0.0 mi
- Ringland Centre Ringland Circle Newport South Wales26/0654 · AmendmentAwaiting decision0.0 mi
- 12 Hartland Road, London, NW6 6BJ25/3269 · OutlineApproved0.0 mi
- 12 Hartland Road, London, NW6 6BJ25/2807 · OutlineRefused0.0 mi
- 12 Hartland Road, London, NW6 6BJ25/2811 · FullApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman2.9 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing3.3 mi
- Orient Construction Consultancy LimitedVerifiedLondon5.8 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering7.4 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.