Skip to content

57 Belsize Park London NW3 4EH

2026/3386/PCertificate of Lawfulness (Existing)Pending Decision

Proposal

Existing use of the property as a single planning unit for a mixed use comprising flexible long term residential accommodation (Class C3 and Sui Generis) and short term guest accommodation (Class C1).

Received
14 August 2026
Target decision date
7 August 2026
Ward
Belsize
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.

  1. Received14 Aug
  2. Validated7 Aug
  3. Consult.
  4. Target7 Aug
  5. Decided
7 weeks typical decision time in Camden87% of certificate of lawfulness (existing) applications approved

This is a planning application at 57 Belsize Park London NW3 4EH. Camden has handled 39 applications of this type and approves 87% of them, typically deciding them in 32 days. It was submitted on 14 August 2026 and is still awaiting a decision. The site is in the Belsize Park conservation area, with 1 listed building nearby. There are no previous applications recorded 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

Reference
2026/3386/P
Address
57 Belsize Park London NW3 4EH
Postcode
NW3 4EH
Local Authority
Camden
Application Type
Certificate of Lawfulness (Existing)
Decision Status
Undecided
Current Status
Registered
Ward
Belsize

Applicant & Agent

Planning Application Dates

Date Received
14 August 2026
Target Decision Date
7 August 2026
Date Validated
7 August 2026
Date Submitted
14 August 2026

Planning Decision

Case Officer
Connie Marinetto

Publicity

Appeal

Additional Information

Coordinates
51.545513, -0.174694
Enriching application data
2/3
Council recordsAppealsFlood risk

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 weekly.

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.

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report