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14 Sherlock Mews London W1U 6DT

21/04346/NMANon-material amendmentsApproved
Discharge / amendments

Approved on 14 September 2021

Council decision: Application PermittedDelegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Amendments to planning permission dated 19th July 2018 (RN: 18/02233/FULL) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY; (i) Amendment to the main door of the residential entrance to the building at the Baker Street front elevation; (ii) Amendment to the material finish of the residential entrance to the building at the Baker Street front elevation; (iii) Internal layout changes to 1st - 4th floor flats at 96-98 Baker Street; (iv) Reconfigured exhaust shaft for theatre at 1st floor terrace to the Baker Street rear elevation; (v) Modification to bedroom windows on the rear elevation of 96-98 Baker Street to accommodate exhaust shaft for theatre; (vi) Revised location of access hatch to roof; (vii) Reduced area for clerestory pop-up at Baker Street rear elevation; (viii) Addition of a guard rail at roof level; and (ix) Introduction of external pipework to the rear elevation of 96-98 Baker Street.

Received
28 June 2021
Decision level
Delegated (officer decision)
Ward
Marylebone High Street
Agent
DP9 Ltd
  1. Received28 Jun
  2. Validated28 Jun
  3. Consult.
  4. Target26 Jul
  5. Decided14 Sep

Decided in 78 days (council typically 49)

About this application

This is an application to amend a permission at 14 Sherlock Mews London W1U 6DT. Westminster has handled 604 applications of this type. This one was decided in 78 days, 4 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 4 listed buildings nearby. There have been 7 other applications at this address. We hold 1,070 applications in total for the W1U 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.Planning something similar? See what gets approved on your street

Application details

Postcode
W1U 6DT
Application type
Non-material amendments
Scale / size
Small

Planning application dates

Date validated
28 June 2021
Target decision date
26 July 2021

Applicant and agent

Agent
DP9 Ltd
Agent address
100 Pall Mall London SW1Y 5NQ

Planning decision

Statutory period
28 days

Additional information

Planning Portal ID
PP-09985879
Comments
0
Documents
20

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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 2026-11-03. 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.

Source: Westminster

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

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