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93 Mortimer Street London W1W 7SS

25/04893/FULLFull Planning Permission ApplicationApproved
Full

Approved on 10 September 2025

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

Installation of two extract ducts and two new skylights on roof; an inwards opening gate at ground floor on Great Portland Street.

Received
16 July 2025
Decision level
Delegated (officer decision)
Public comments
1
Ward
West End
Agent
Langdale Planning Limited
  1. Received16 Jul
  2. Validated23 Jul
  3. Consult.
  4. Target17 Sep
  5. Decided10 Sep

Decided in 49 days (council typically 49)

About this application

This is a full planning application at 93 Mortimer Street London W1W 7SS. Westminster has handled 4,484 applications of this type. This one was decided in 56 days, 7 days longer than Westminster's typical decision time. The site is in the East Marylebone conservation area, with 8 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 484 applications across West End. We hold 251 applications in total for the W1W 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
W1W 7SS
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
23 July 2025
Consultation expiry
3 September 2025
Target decision date
17 September 2025

Applicant and agent

Agent
Langdale Planning Limited
Agent address
Langdale Planning Limited Tetbury Road Malmesbury SN16 0LU United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
13 August 2025
Advertisement expiry
3 September 2025
Site notice start
6 August 2025
Site notice end
27 August 2025

Additional information

Planning Portal ID
PP-14133390
Documents
22

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Also checked, none recorded (20)

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 and heritage coasts.

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
    1 Aug

    Installation of two extract ducts routed internally to terminate at main roof level; an inwards opening gate…

    ApprovedListed building consentRelated25/05432/LBC
  2. 2025
    16 Jul

    Installation of two extract ducts and two new skylights on roof; an inwards opening gate at ground floor on…

    This applicationApprovedFull25/04893/FULL

Source: Westminster

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

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