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151 Sumatra Road London NW6 1PN

2023/1734/PFull Planning PermissionRefused
Full

Refused on 12 July 2023

Delegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

External alterations including installation of front and rear dormers and second floor rear extension with balconies at upper ground, first and second floor to provide a studio flat and 2 x 2 bedroom flats (Class C3).

Received
27 April 2023
Decision level
Delegated (officer decision)
Ward
West Hampstead
  1. Received27 Apr
  2. Validated30 May
  3. Consult.21 Jun
  4. Target21 Jun
  5. Decided12 Jul

Decided in 43 days (council typically 49)

About this application

This is a full planning application for a rear extension at 151 Sumatra Road London NW6 1PN. Camden has handled 2,296 applications of this type. This one was decided in 76 days, 4 weeks longer than Camden's typical decision time. There are no previous applications recorded at this address. In the past year there have been 106 applications across West Hampstead. We hold 3,470 applications in total for the NW6 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
NW6 1PN
Application type
Full Planning Permission
Development type
C3 Dwelling House
Scale / size
Small

Planning application dates

Date validated
30 May 2023
Consultation expiry
21 June 2023
Consultation start
31 May 2023
Consultation end
21 June 2023
Last date for comments
26 June 2023
Target decision date
21 June 2023

Planning decision

Statutory period
22 days

Publicity

Site notice start
2 June 2023

Additional information

Documents
16

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Article 4 direction: Basements
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation 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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