10 Chalcot Crescent London NW1 8YD
Approved on 16 January 2026
Council decision: GrantedPlanning committee
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
Erection of a lower ground floor rear extension and associated alterations.
- Received
- 27 October 2025
- Decision level
- Planning committee
- Council
- London Borough of Camden
- Ward
- Primrose Hill
- ReceivedReceived27 Oct
- ValidatedValidated3 Nov
- Consult.Consultation
- TargetTarget Date7 Dec
- DecidedDecided16 Jan
Decided in 74 days (council typically 49)
About this application
This is a full planning application for a rear extension at 10 Chalcot Crescent London NW1 8YD. Camden has handled 2,296 applications of this type. This one was decided in 81 days, 5 weeks longer than Camden's typical decision time. The site is in the Primrose Hill conservation area, with 7 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 269 applications across Primrose Hill. We hold 3,180 applications in total for the NW1 postcode area.
90% of full applications at London Borough of Camden were approved. Across all application types, the council typically decides in about 7 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
- NW1 8YD
- Application type
- Householder Application
- Scale / size
- Small
Planning application dates
- Date validated
- 3 November 2025
- Target decision date
- 7 December 2025
Planning decision
- Statutory period
- 34 days
Additional information
- Documents
- 35
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Primrose Hill
- Article 4 direction: Basements+1 more
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (20)
flood storage areas, 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
- 20269 Sep
Variation of condition 2 (drawings) to planning permission 2025/4793/P
ApprovedVariation of conditions (s73)2026/3810/P - 202527 Oct
Erection of a lower ground floor rear extension and associated alterations.
This applicationApprovedFull2025/4793/P - 202527 Oct
Erection of a lower ground floor rear extension and internal alterations.
ApprovedListed building consentFiled alongside2025/4952/L
Planning history at this site
4 other applications at this property, newest first.
- 20269 Sep
Variation of condition 2 (drawings) to listed building consent 2025/4952/L
ApprovedVariation of conditions (s73)2026/3851/L - 202619 May
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L
ApprovedVariation of conditions (s73)2026/2008/P - 202613 May
Variation of condition 2 (approved drawings) to listed building consent 2025/4952/L
ApprovedVariation of conditions (s73)2026/1881/P - 202510 Mar
External and Internal alterations to single dwelling house
PendingListed building consent2025/1034/P
Source: Camden
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
- 10 Chalcot Crescent London NW1 8YD2025/4952/L · HeritageApproved0.0 mi
- 7 Rothwell Street London NW1 8YH2025/0641/P · AmendmentApproved0.0 mi
- 7 Rothwell Street London NW1 8YH2025/0691/L · HeritageApproved0.0 mi
- 7 Rothwell Street London NW1 8YH2023/4152/P · FullApproved0.0 mi
- 1 Rothwell Street London NW1 8YH2024/1875/P · ConditionsApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman1.3 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing2.3 mi
- Orient Construction Consultancy LimitedVerifiedLondon3.7 mi
- Building Services LondonVerifiedLondonExtensionsLoft Conversions6.0 mi
Planning something similar?
See what the council approved and refused for single-storey rear extensions on your street. Pick your home and get the evidence before you pay for drawings.