102 Baker Street London W1U 6TL
Proposal
Demolition of roof and erection of a mansard roof extension and associated internal alterations including partial demolition and reconstruction of the staircase to create a new fourth floor level to provide a self-contained flat (Use Class C3) (linked to 20/06862/FULL).
- Received
- 5 November 2020
- Decided
- 23 December 2020 · Application Withdrawn
- Council
- City of Westminster
- Ward
- Marylebone High Street
- ReceivedSubmitted5 Nov
- ValidatedValidated5 Nov
- Consult.Consultation
- TargetTarget Date31 Dec
- DecidedDecided23 Dec
Decided in 48 days (council typically 49)
This is a heritage application for demolition at 102 Baker Street London W1U 6TL. Westminster has handled 2,686 applications of this type and approves 91% of them, typically deciding them in 65 days. This one was decided in 48 days, 2 weeks quicker than Westminster's median. The site is in the Portman Estate conservation area, with 6 listed buildings nearby. There have been 11 other applications at this address. We hold 1,036 applications in total for the W1U 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
- 20205 Nov
Demolition of roof and erection of a mansard roof extension and associated internal alterations including…
This applicationWithdrawnListed building consent20/07043/LBC - 202029 Oct
Demolition of roof and erection of a mansard roof extension and associated internal alterations including…
WithdrawnApplication for full Planning PermissionPart of20/06862/FULL
Planning history at this site
10 other applications at this property, newest first.
- 20081 Feb
Installation of projecting hanging sign board (non illuminated).
ApprovedListed building consent08/01139/LBC - 200721 Dec
Installation of awning blind to shopfront.
ApprovedApplication for full Planning Permission08/00139/FULL - 20077 Dec
Display of canopy and externally illuminated projecting sign.
ApprovedAdvertisement consent07/10699/ADV - 20077 Dec
Installation of an internally illuminated (letters only) fascia sign, externally illuminated projecting sign…
ApprovedListed building consent07/10701/LBC - 200728 Nov
Installation of a projecting sign at fascia level.
RefusedListed building consent07/10379/LBC - 200723 Oct
Use of the public highway for the placing of 4 tables and 8 chairs in connection with associated restaurant…
ApprovedApplic. for tables and chairs07/09227/TCH - 20071 Oct
Installation of plant on rear first floor flat roof and replacement of duct on the rear elevation.
ApprovedApplication for full Planning Permission07/08594/FULL - 20071 Oct
Installation of new shopfront and internal alterations at basement and ground floor levels.
ApprovedListed building consent07/08591/LBC - 20071 Oct
Installation of plant at rear first floor flat roof and replacement of kitchen extract duct on the rear…
ApprovedListed building consent07/08595/LBC - 20071 Oct
Installation of new shopfront and internal alterations at basement and ground floor levels.
ApprovedApplication for full Planning Permission07/08590/FULL
Planning constraints
Designations at the address point. Ones next to the site may also apply.
- Conservation area: Portman Estate
- Listed building: Basement And Ground Floor 100 Baker Street London W1U 6TWOn 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 (22)
flood storage areas, listed buildings, 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 2026-10-09. 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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