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15 - 19 Cavendish Place London W1G 0QE

24/08328/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

Erection of two storey roof extension, plus mezzanine to provide additional office (Class E) accommodation including plant space and green roof. Erection of balconies to rear of building, infill of courtyards at ground and lower ground floors, infill extensions to rear at first floor and within southeast corner of first-fifth floor levels. Removal of showroom entrance and new active frontage at ground and lower ground floor levels. New glazing to existing windows. Use of ground and basement as financial and professional services (Class E) accommodation.

Received
28 November 2024
Decision due
27 January 2025
Ward
West End
  1. Received28 Nov
  2. Validated2 Dec
  3. Consult.
  4. Target27 Jan
  5. Decided

Have your say

Comment on the council's siteDocuments (70)

About this application

This is a full planning application for an extension at 15 - 19 Cavendish Place London W1G 0QE. Westminster has handled 4,484 applications of this type. It has been with the council since 28 November 2024 and is still awaiting a decision. The site is in the Regent Street conservation area, with 13 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 590 applications in total for the W1G 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.Planning something similar? See what gets approved on your street

Application details

Postcode
W1G 0QE
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
2 December 2024
Consultation expiry
8 January 2025

Applicant and agent

Agent
Howard De Walden Estate
Agent address
23 Queen Anne Street London W1G 9DL United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
18 December 2024
Advertisement expiry
8 January 2025
Site notice start
6 December 2024
Site notice end
27 December 2024

Additional information

Planning Portal ID
PP-13520014
Comments
0
Documents
70

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Harley StreetPart of the site · +1 more
  • Listed building: Grade II: Number 7 and Attached RailingsOn or next to 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.

Source: Westminster

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

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Before the decision

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