46 Portland Place London W1B 1NF
Approved on 2 June 2026
Proposal
Confirmation on planning permission have been lawfully implemented by carrying out a material operation at the site, in accordance with the approved plans (Variation of condition 1 of planning permission dated 29 April 2016 (RN 14/12563/FULL) for the demolition of the rear extension to the building at lower ground, mezzanine, ground and first floor levels and rebuilding to include the creation of a terrace at rear first floor level. Excavation of additional basement levels and installation of plant at main roof and basement level all in association with the use of the property as a single family dwelling (Class C3) from RN 14/12563/FULL. NAMELY, to vary the approved drawings to enable additional excavation at basement levels, installation of photovoltaics at roof level, enlargement of the openings at ground and first floors, to change a window to a door to provide access to the terrace at rear first floor level and to alter the fenestration of the front elevation to the orangery with internal alterations at all floor levels)
- Received
- 1 April 2026
- Council
- City of Westminster
- Ward
- West End
- Agent
- HUB Architects and Designers Ltd.
- ReceivedReceived1 Apr
- ValidatedValidated1 Apr
- Consult.Consultation
- TargetTarget Date27 May
- DecidedDecided2 Jun
Decided in 62 days (council typically 49)
About this application
This is an application to amend a permission at 46 Portland Place London W1B 1NF. Westminster has handled 604 applications of this type. This one was decided in 62 days, 13 days longer than Westminster's typical decision time. The site is in the Harley Street conservation area, with 10 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 484 applications across West End. We hold 372 applications in total for the W1B postcode area.
88% of amendment 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 1NF
- Application type
- Certificate of Lawfulness (existing)
- Scale / size
- Small
Planning application dates
- Date validated
- 1 April 2026
- Target decision date
- 27 May 2026
Applicant and agent
- Agent
- HUB Architects and Designers Ltd.
- Architect profile
- HUB ARCHITECTS AND DESIGNERS LIMITED
- Agent address
- Bear House George Street Bisley GL6 7BB United Kingdom
Planning decision
- Statutory period
- 56 days
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Harley Street
- 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.
Planning history at this site
3 other applications at this property, newest first.
- 202624 Aug
Replacement of all non-original windows, previously proposed windows and relevant external glazed doors with…
ApprovedApplication26/05632/FULL - 202623 Jun
Internal alterations to the rear of the first floor comprise the removal of existing non-original internal…
ApprovedListed building consent26/04128/LBC - 202622 Jun
Installation of replacement all non-original windows and relevant external glazed doors with new painted…
ApprovedListed building consent26/04113/LBC
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 44 Portland Place London W1B 1NE23/03967/ADLBC · ConditionsApproved0.0 mi
- 44 Portland Place London W1B 1NE23/03965/ADLBC · ConditionsApproved0.0 mi
- 44 Portland Place London W1B 1NE23/03966/ADLBC · ConditionsApproved0.0 mi
- 44 Portland Place London W1B 1NE23/01884/LBC · HeritageApproved0.0 mi
- 44 Portland Place London W1B 1NE23/04692/LBC · HeritageApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman0.3 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing0.8 mi
- Orient Construction Consultancy LimitedVerifiedLondon3.6 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering5.7 mi
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