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18 Lisson Grove London NW1 6TT

26/01653/FULLFull Planning Permission ApplicationApproved
Full

Approved

Site boundary (council red line)

Proposal

Erection of a extension, conversion and refurbishment of the site to deliver three new residential units; together with the extension and improvement of the existing apartments, external alterations, and the utilisation of the ground floor office space to provide a single commercial unit (Class E).

Received
13 March 2026
Ward
Regent's Park
Agent
Simply Planning Limited
  1. Received13 Mar
  2. Validated13 Mar
  3. Consult.
  4. Target8 May
  5. Decided

About this application

This is a full planning application for an extension at 18 Lisson Grove London NW1 6TT. Westminster has handled 4,484 applications of this type. It has been with the council since 13 March 2026 and is still awaiting a decision. The site is in 3 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 120 applications across Regent's Park. We hold 3,181 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 6TT
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
13 March 2026
Consultation expiry
15 April 2026

Applicant and agent

Agent
Simply Planning Limited
Agent address
Third Floor Suite VictoriaHouse 114-116 Colmore Row Birmingham B3 3BD United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
25 March 2026
Advertisement expiry
15 April 2026

Additional information

Planning Portal ID
PP-14757781
Comments
0
Documents
23

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)

flood storage areas, conservation 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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