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16 Mortimer Street London W1T 3JL

23/07589/FULLFull Planning Permission ApplicationAwaiting decision
Full
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

Variation of condition 1 of planning permission dated 03 August 2023 (RN: 23/02362/FULL) for partial demolition; infill of rear lightwells; front extension at fifth floor level and introduction of a terrace; partial replacement of front elevation; refurbishment of existing building; installation of plant equipment; replacement windows; cycle parking; and associated external alterations; in connection with the use of the building as Offices (Class E); NAMELY, the reduction of roof level massing to the rear, installation of guttering above fifth floor and introduction of roof pitch, removal of external basement to ground floor stair to the rear, revised canopy design to the front, revised signage design to left of canopy, addition of three external wall lights at ground level, new planters at ground and terrace levels, revised Crittall style window arrangement, spandrel panel at front facade to incorporate vertical detailing to match mullions, change in location of bike racks, reduction of window sizes to east and west lightwell infills and introduction of grilles at eastern infill, and proposed reduction in rooflight to east and west infill extension.

Received
1 November 2023
Decision due
27 December 2023
Ward
West End
Agent
Gerald Eve LLP
  1. Received1 Nov
  2. Validated1 Nov
  3. Consult.
  4. Target27 Dec
  5. Decided

About this application

This is a full planning application for demolition at 16 Mortimer Street London W1T 3JL. Westminster has handled 4,484 applications of this type. It has been with the council since 1 November 2023 and is still awaiting a decision. The site is in the East Marylebone conservation area, with 6 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 486 applications across West End. We hold 323 applications in total for the W1T 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
W1T 3JL
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
1 November 2023

Applicant and agent

Agent
Gerald Eve LLP
Agent address
1 Fitzroy Place 6 Mortimer Street London W1T 3JJ United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-12566317
Comments
0
Documents
26

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: East Marylebone
  • Listed building: Grade II: 26, Nassau Street W1On or next to this site · +1 more
  • 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.

© 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
    17 Sep

    Details of how waste is to be stored on site and how materials for recycling will be stored separately and…

    ApprovedDischarge of conditions25/06650/ADFULL
  2. 2023
    1 Nov

    Variation of condition 1 of planning permission dated 03 August 2023 (RN: 23/02362/FULL

    This applicationPendingVariation of conditions (s73)23/07589/FULL

Source: Westminster

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

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A listed building is on or next to this site.

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