66, Portland Place, W1B 1AD

25/01205/LBCFull planning & listed building consentApproved

Full

Approved on 11 June 2025

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

Internal and external alterations including internal layout alterations, refurbishment and repair works, external alterations refurbishment and repair works including the creation of new and adjusted entrances, removal of railings and partial infilling of lightwell, insertion of canopies, provision of a new substation, provision of improved equipment, services and plant, alteration of existing glazing, alterations to roof, alteration of terraces, replacement of external fire escape stair, provision of external lighting and associated works. (Linked to 25/01204/FULL)

Submitted: 21 February 2025
Council: City of Westminster

ReceivedSubmitted21 Feb
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided11 Jun

Decided in 110 days (council typically 49)

About this application

This is a planning application for window replacement at 66, Portland Place, W1B 1AD. Westminster has handled 666 applications of this type. This one was decided in 110 days, 9 weeks longer than Westminster's typical decision time. The site is in the Harley Street conservation area, with 8 listed buildings nearby. There have been 7 other applications at this address. In the past year there have been 469 applications across WEW_22. We hold 372 applications in total for the W1B postcode area.

89% of full planning & listed building consent 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: W1B 1AD
Application type: Full planning & listed building consent

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Harley Street
Listed building: Grade II*: The Royal Institute of British ArchitectsOn 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.

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

Planning history at this site

20 other applications at this property, newest first.

Source: Westminster

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

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