6 - 7 Clifford Street London W1S 2FT
Proposal
Refurbishment of an existing office building including upgrading external terraces area, external alterations to elevations, extension of plant compound (including consolidation of existing and new equipment), installation of photovoltaic panels and associated works
- Received
- 11 December 2025
- Decided
- 14 May 2026 · Application Permitted
- Council
- City of Westminster
- ReceivedSubmitted11 Dec
- ValidatedValidated11 Dec
- Consult.Consultation
- TargetTarget Date
- DecidedDecided14 May
Decided in 154 days
This is a planning application for an extension at 6 - 7 Clifford Street London W1S 2FT. Westminster has handled 26,489 applications of this type and approves 88% of them, typically deciding them in 54 days. This one was decided in 154 days, 14 weeks longer than Westminster's median. The site is in the Mayfair conservation area, with 14 listed buildings nearby. There have been 2 other applications at this address. We hold 773 applications in total for the W1S postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 20264 Sep
Detailed drawings showing planters on the terraces, and of a biodiversity management plan in relation to…
RefusedApplicationRelated26/06055/ADFULL - 202511 Dec
Refurbishment of an existing office building including upgrading external terraces area, external alterations…
This applicationApprovedApplication25/09013/FULL
Planning history at this site
1 other application at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Mayfair
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- Brownfield land register: 25 Savile Row London W1S 2ESRegister site at or near this address
- Flood zone 1: Low probability (rivers and sea)
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 2026-10-09. 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.
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