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63 Lisson Street London NW1 5DA

25/08773/FULLFull Planning Permission ApplicationApproved
Full

Approved

Site boundary (council red line)

Proposal

Erection of mansard roof extension to facilitate 1-bed self-contained flat, together with the replacement of existing fenestration and creation of a third floor terrace to the rear and associated external alterations.

Received
2 December 2025
Public comments
1
Ward
Church Street
  1. Received2 Dec
  2. Validated2 Dec
  3. Consult.
  4. Target27 Jan
  5. Decided

About this application

This is a full planning application for an extension at 63 Lisson Street London NW1 5DA. Westminster has handled 4,484 applications of this type. It has been with the council since 2 December 2025 and is still awaiting a decision. The site is in 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 33 applications across Church Street. We hold 3,180 applications in total for the NW1 postcode area.

86% of full applications at City of Westminster 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 5DA
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
2 December 2025
Consultation expiry
11 March 2026

Planning decision

Statutory period
56 days

Publicity

Last advertised
18 February 2026
Advertisement expiry
11 March 2026

Additional information

Planning Portal ID
PP-14475468
Documents
24

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Lisson GrovePart of the site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, listed buildings, tree preservation orders, 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: Westminster

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

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