46 Portland Place London W1B 1NF Data via plota.co.uk
Proposal
New dormer windows, replacement of all non-original windows, previously proposed windows and relevant external glazed doors with new painted windows and new glazed painted external doors that encompass vacuum glazing together with reinstatement of suitable joinery profiles throughout. (Linked with 26/04113/LBC) Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 14 Oct 2026 and 23 Oct 2026, from Westminster's recent extensions.
Associated applications 2
- FullNew dormer windows, replacement of all non-original windows, previously proposed windows…This application26/05632/FULL
Site constraints 9
Show the other 23 with distances
- 32 m8, Hallam Mews W1Grade II
- 39 m56 and 58, Portland Place W1Grade II*
- 44 m27-35 Portland PlaceGrade II*
- 52 m41-47, Portland Place W1Grade II*
- 52 m73, New Cavendish Street W1Grade II
- 64 mStatue of Sir George Stuart White in Centre of Road South of Weymouth Street CrossingGrade II
- 73 m32, Portland Place W1Grade II
- 79 mGeneral Medical CouncilGrade II
- 82 mThe Royal Institute of British ArchitectsGrade II*
- 82 m26-30, Portland Place W1Grade II*
- 89 m12, Weymouth Street W1Grade II
- 105 m17-21, Portland Place W1Grade II*
- 107 mThe JackalopeGrade II
- 115 m82, NEW CAVENDISH STREET W1 (See details for further address information)Grade II*
- 117 m22, Weymouth StreetGrade II
- 118 m21, Duchess Mews W1Grade II
- 120 m61 and 63, New Cavendish Street W1Grade II*
- 125 m19, Duchess Mews W1Grade II
- 133 m17, Duchess Mews W1Grade II
- 137 m31, Weymouth Street W1Grade II
- 137 mBroadcasting HouseGrade II*
- 139 m59-67, Portland Place W1Grade II*
- 141 m28 and 30, Weymouth StreetGrade II
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- W1B 1NF
- Received
- 18 Aug 2026
- Validated
- 24 Aug 2026
- Ward
- West End
- Case officer
- Show
- Target decision
- 19 Oct 2026
- Applicant
- Show
- Agent
- HUB Architects and Designers Ltd.
Decision outlook
Day 45 of the 56-day target. Westminster usually decides extensions by day 55.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
18 neighbours consulted · Last counted 7 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15130840
- Planning Portal ref
- PP-15130840
- Env. assessment
- No
Historical activity at this location
45 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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46 Portland Place London W1B 1NF
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