Garden Flat 25 Lancaster Grove London NW3 4EX
Proposal
Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P granted 14/05/2026 for the erection of a garden room at rear.
- Received
- 20 August 2026
- Target decision date
- 10 September 2026
- Council
- London Borough of Camden
- Ward
- Belsize
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.
- ReceivedSubmitted20 Aug
- ValidatedValidated11 Aug
- Consult.Consultation
- TargetTarget Date10 Sep
- DecidedDecided
This is a planning application for an outbuilding at Garden Flat 25 Lancaster Grove London NW3 4EX. Camden has handled 19 applications of this type and approves 88% of them, typically deciding them in 44 days. It was submitted on 20 August 2026 and is still awaiting a decision. The site is in the Belsize Park conservation area. There has been 1 other application at this address. In the past year there have been 317 applications across Belsize. We hold 2,488 applications in total for the NW3 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Camden
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202620 Aug
Green roof details and tree protection details required by conditions 3 and 4 of planning permission…
PendingDischarge of conditions2026/3432/P - 202620 Aug
Biodiversity Gain Plan (BGP) required by planning permission reference 2025/5477/P
This applicationPendingHistoric application2026/3587/06BGP - 20252 Dec
Erection of a garden room at rear
ApprovedFull planning permissionPart of2025/5477/P
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Belsize
- Article 4 direction: Basements+2 more
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (21)
flood storage 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 2026-10-09. 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.
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