15 - 16 Cornwall Terrace London NW1 4QP

25/07336/LBCListed Building Consent ApplicationApproved

Listed building consent

Approved on 17 November 2025

Site boundary (council red line)

Proposal

Internal alterations including reconfiguration of loft floor, new opening to non-original partition to hallway and adjustment of risers to accommodate increased capacity for services.

Received: 10 October 2025
Council: City of Westminster
Ward: Regent's Park
Agent: Montagu Evans LLP

ReceivedReceived10 Oct
ValidatedValidated10 Oct
Consult.Consultation
TargetTarget Date5 Dec
DecidedDecided17 Nov

Decided in 38 days (council typically 49)

About this application

This is a heritage application at 15 - 16 Cornwall Terrace London NW1 4QP. Westminster has handled 2,677 applications of this type. This one was decided in 38 days, 11 days quicker than Westminster's typical decision time. The site is in the Regent's Park conservation area, with 8 listed buildings nearby. There have been 4 other applications 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.

93% of heritage 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 4QP
Application type: Listed Building Consent Application
Scale / size: Small

Planning application dates

Date validated: 10 October 2025
Consultation expiry: 12 November 2025
Target decision date: 5 December 2025

Applicant and agent

Agent: Montagu Evans LLP
Agent address: 70 St Mary Axe London EC3A 8BE United Kingdom

Planning decision

Statutory period: 56 days

Publicity

Last advertised: 22 October 2025
Advertisement expiry: 12 November 2025

Additional information

Planning Portal ID: PP-14399215
Comments: 0
Documents: 17

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Regent's Park
Listed building: Basement And Ground Floor 10 Cornwall Terrace London NW1 4QPOn or next to this site
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Registered park and garden: Regent'S ParkNext to the site
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (21)

flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, 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.

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.

Planning history at this site

8 other applications at this property, newest first.

Source: Westminster

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

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Consultants on this application

Montagu Evans LLP · Agent for this application

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