Skip to content

27 Gloucester Place London W1U 8HU

23/04004/FULLFull Planning Permission ApplicationApproved
Full

Approved on 1 November 2023

Council decision: Application PermittedDelegated (officer decision)

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

Alterations at lower ground floor level including extension within front lightwell, replacement of flat roof to rear and creation of terrace.

Received
14 June 2023
Decision level
Delegated (officer decision)
Public comments
1
Ward
Marylebone
Agent
Garnett Architecture LLP
  1. Received14 Jun
  2. Validated20 Jun
  3. Consult.
  4. Target15 Aug
  5. Decided1 Nov

Decided in 134 days (council typically 49)

About this application

This is a full planning application for an extension at 27 Gloucester Place London W1U 8HU. Westminster has handled 4,484 applications of this type. This one was decided in 140 days, 13 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 10 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 171 applications across Marylebone. We hold 1,068 applications in total for the W1U 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
W1U 8HU
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
20 June 2023
Consultation expiry
26 July 2023
Target decision date
15 August 2023

Applicant and agent

Agent
Garnett Architecture LLP
Agent address
Studio 311 The Print Rooms 164-180 Union Street London SE1 0LH

Planning decision

Statutory period
56 days

Publicity

Last advertised
5 July 2023
Advertisement expiry
26 July 2023
Site notice start
26 June 2023
Site notice end
17 July 2023

Additional information

Planning Portal ID
PP-12165411
Documents
30

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • Listed building: Grade II: 21-75, Gloucester Place W1On this site · +16 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref STM1Protected tree on or next to this site · +5 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)

flood storage areas, 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. 2023
    14 Jun

    Alterations at lower ground floor level including extension within front lightwell, replacement of flat roof…

    This applicationApprovedFull23/04004/FULL
  2. 2023
    14 Jun

    Alterations at lower ground floor level including extension within front lightwell, replacement of flat roof…

    ApprovedListed building consentFiled alongside23/04005/LBC

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 W1U

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report