Skip to content

23 Glenmore Road London NW3 4BY

2025/5454/PHouseholder ApplicationApproved
Householder

Approved on 8 May 2026

Council decision: Granted Subject to a Section 106 Legal AgreementPlanning committee

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

Excavation of basement extension and front lightwell, and walk-on basement rooflight to rear, erection rear dormer extension, increase in height of existing rear side infill extension, installation of front roof lights, replacement and enlargement of windows and door on rear elevation, replacement of windows and door on front elevation.

Received
9 December 2025
Decision level
Planning committee
Ward
Belsize
  1. Received9 Dec
  2. Validated9 Dec
  3. Consult.
  4. Target11 Jan
  5. Decided8 May

Decided in 150 days (council typically 49)

About this application

This is a full planning application for a dormer extension at 23 Glenmore Road London NW3 4BY. Camden has handled 2,296 applications of this type. This one was decided in 150 days, 14 weeks longer than Camden's typical decision time. 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 325 applications across Belsize. We hold 2,616 applications in total for the NW3 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
NW3 4BY
Application type
Householder Application
Scale / size
Small

Planning application dates

Date validated
9 December 2025
Target decision date
11 January 2026

Planning decision

Statutory period
33 days

Additional information

Documents
32

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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 2026-11-03. 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.

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near NW3

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for basements on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address