1 Sherlock Mews London W1U 6DW
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
Erection of mansard roof extension, replacement of windows and doors, and internal reconfiguration.
- Received
- 14 June 2024
- Decision due
- 16 August 2024
- Council
- City of Westminster
- Ward
- Marylebone
- Agent
- Stylus Architects
- ReceivedReceived14 Jun
- ValidatedValidated21 Jun
- Consult.Consultation
- TargetTarget Date16 Aug
- DecidedDecided
Have your say
About this application
This is a full planning application for an extension at 1 Sherlock Mews London W1U 6DW. Westminster has handled 4,484 applications of this type. It has been with the council since 14 June 2024 and is still awaiting a decision. The site is in the Portman Estate conservation area, with 2 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 171 applications across Marylebone. We hold 1,070 applications in total for the W1U postcode area.
86% of full 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.Planning something similar? See what gets approved on your street
Application details
- Postcode
- W1U 6DW
- Application type
- Full Planning Permission Application
- Scale / size
- Small
Planning application dates
- Date validated
- 21 June 2024
- Consultation expiry
- 7 August 2024
Applicant and agent
- Agent
- Stylus Architects
- Architect profile
- STYLUS ARCHITECTS LTD
- Agent address
- 76 White Hart Lane Barnes London SW13 0PZ United Kingdom
Planning decision
- Statutory period
- 56 days
Publicity
- Last advertised
- 17 July 2024
- Advertisement expiry
- 7 August 2024
- Site notice start
- 5 July 2024
- Site notice end
- 26 July 2024
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Portman Estate
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed
- 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 2026-11-03. 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.
Associated applications
- 202515 Dec
Details of windows, doors, parapet gutter and leadwork details pursuant to conditions 4 and 5 of planning…
ApprovedDischarge of conditions25/09081/ADFULL - 202414 Jun
Erection of mansard roof extension, replacement of windows and doors, and internal reconfiguration.
This applicationPendingFull24/03975/FULL
Planning history at this site
1 other application at this property, newest first.
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near W1U
New planning applications delivered to your inbox daily.
Around this site
Nearby applications
- 1 Sherlock Mews London W1U 6DW24/08305/FULL · FullAwaiting decision0.0 mi
- 1 Sherlock Mews London W1U 6DW25/09081/ADFULL · ConditionsApproved0.0 mi
- 30 Paddington Street London W1U 4HE08/02851/FULL · FullWithdrawn0.0 mi
- 32 Paddington Street London W1U 4HE18/06345/CLEUD · AmendmentApproved0.0 mi
- 31 Paddington Street London W1U 4HD10/01255/ADFULL · ConditionsApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman0.7 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing1.1 mi
- Orient Construction Consultancy LimitedVerifiedLondon4.1 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering5.8 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.