Chagford House Chagford Street London NW1 6EG

26/00639/ADLBCApproval of Details (ADLBC)Approved

Discharge / amendments

Approved on 14 May 2026

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

Details of new sash windows and sash boxes pursuant to Condition 3 of Listed Building Consent dated 29 January 2025 (RN24/07848/LBC)

Received: 4 February 2026
Public comments: 1
Council: City of Westminster
Ward: Regent's Park
Agent: Archway Building Consultancy Ltd

ReceivedReceived4 Feb
ValidatedValidated25 Feb
Consult.Consultation
TargetTarget Date22 Apr
DecidedDecided14 May

Decided in 78 days (council typically 49)

About this application

This is an application to discharge conditions at Chagford House Chagford Street London NW1 6EG. Westminster has handled 3,063 applications of this type. This one was decided in 99 days, 7 weeks longer than Westminster's typical decision time. The site is in the Dorset Square conservation area, with 11 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 124 applications across Regent's Park. We hold 3,180 applications in total for the NW1 postcode area.

92% of conditions 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 6EG
Application type: Approval of Details (ADLBC)
Scale / size: Small

Planning application dates

Date validated: 25 February 2026
Target decision date: 22 April 2026

Applicant and agent

Agent: Archway Building Consultancy Ltd
Architect profile: ARCHWAY BUILDING CONSULTANCY LIMITED
Agent address: 3 London Bridge Street City: SE1 9SG United Kingdom

Planning decision

Statutory period: 56 days

Additional information

Planning Portal ID: PP-14677113
Documents: 6

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Dorset Square
Listed building: Grade II: Chagford HouseOn this site
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (21)

flood storage areas, 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.

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

6 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.

Track this application

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

Get email alerts near NW1

New planning applications delivered to your inbox daily.

Around this site

Nearby applications

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Contractors near this project

Find contractors for windows & doors near this site

View all contractors

Planning something similar?

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

See what gets approved on your street Buying this property? Report on this address