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12, Pilgrim's Lane, London, NW3 1SN

2025/0809/PHouseholder planning permissionApproved
Householder

Approved on 23 January 2026

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

Erection of lower ground/basement and ground floor extensions, extending to side and rear, erection of roof extension to front two storey part and installation of three dormer windows at front and three dormer windows at rear. replacement windows/doors and creation of ground floor terrace to the side and rear

Submitted
25 February 2025
  1. Received25 Feb
  2. Validated
  3. Consult.
  4. Target
  5. Decided23 Jan

Decided in 332 days (council typically 49)

About this application

This is a planning application for a dormer extension at 12, Pilgrim's Lane, London, NW3 1SN. Camden has handled 344 applications of this type. This one was decided in 332 days, 40 weeks longer than Camden's typical decision time. The site is in the Hampstead conservation area, with 16 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 418 applications across Hampstead Town. We hold 2,616 applications in total for the NW3 postcode area.

87% of householder planning permission 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
NW3 1SN
Application type
Householder planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Hampstead
  • 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 2026-11-03. 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.

Source: Camden

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

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