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Dorset House Gloucester Place London NW1 5AH

25/08279/FULLFull Planning Permission ApplicationApproved
Full

Approved on 20 March 2026

Site boundary (council red line)

Proposal

Installation of replacement double-glazed windows and doors. (Linked to 25/08280/LBC)

Received
12 November 2025
Ward
Regent's Park
  1. Received12 Nov
  2. Validated12 Nov
  3. Consult.
  4. Target7 Jan
  5. Decided20 Mar

Decided in 128 days (council typically 49)

About this application

This is a full planning application for window replacement at Dorset House Gloucester Place London NW1 5AH. Westminster has handled 4,484 applications of this type. This one was decided in 128 days, 11 weeks longer than Westminster's typical decision time. The site is in the Dorset Square conservation area, with 1 listed building nearby. There have been 16 other applications at this address. In the past year there have been 124 applications across Regent's Park. We hold 3,176 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.See what's approved near your address

Application details

Postcode
NW1 5AH
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
12 November 2025
Target decision date
7 January 2026

Applicant and agent

Agent
Fletcher King
Agent address
19-20 Great Pulteney Street Soho London W1F 9NF United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14478207
Comments
0
Documents
37

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: Dorset HouseOn this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • 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.

© 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.

Associated applications

  1. 2025
    12 Nov

    Installation of replacement double-glazed windows and doors. (Linked to 25/08280/LBC

    This applicationApprovedFull25/08279/FULL
  2. 2025
    12 Nov

    Installation of replacement double-glazed windows and doors. (Linked to 25/08279/FULL

    ApprovedListed building consentPart of25/08280/LBC

Planning history at this site

15 other applications at this property, newest first.

  1. 2025
    14 Aug

    Installation of replacement double-glazed windows and doors (Proposal A). (Linked to 25/05735/FULL

    ApprovedListed building consent25/05736/LBC
  2. 2025
    14 Aug

    Installation of replacement double-glazed windows and doors (Proposal A) (Linked to 25/05736/LBC

    ApprovedFull Planning Permission Application25/05735/FULL
  3. 2025
    24 Jul

    Installation of two replacement double-glazed windows in the ground-floor reception area. (Linked to…

    ApprovedFull Planning Permission Application25/05163/FULL
  4. 2025
    24 Jul

    Installation of two replacement double-glazed windows in the ground-floor reception area. (Linked to…

    ApprovedListed building consent25/05164/LBC
  5. 2024
    2 Sep

    Display of internally illuminated projecting sign measuring 0.65m X 0.65m and 0.65m X 0.65m (linked with…

    PendingAdvertisement consent24/06115/ADV
  6. 2024
    2 Sep

    Installation of new signage linked with 24/06115/ADV

    PendingListed building consent24/06116/LBC

Source: Westminster

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

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