Skip to content

79 Baker Street London W1U 6RG

10/01773/FULLApplication for full Planning PermissionApproved
Full

Approved on 29 September 2010

Council decision: Application PermittedDelegated (officer decision)

Approximate site (title boundary)
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

Retention and alteration of works at 79 Baker Street and 5 Montagu Row, including: the retention of the mansard roof extension at third and fourth floor levels to 5 Montagu Row and the replacement of lower dormers with flush roof lights; retention of part infill in lightwell at first, second and third floors including the removal of the slate cladding to the rear wall of 5 Montagu Row and its replacement with render; the retention of a brick clad link extension in lightwell between 79 Baker Street and 5 Montagu Row and part in-fill at lower level and the removal of the top storey timber-clad structure of this link extension (including the railings above) and its replacement with a smaller lead covered structure; continued use of 5 Montagu Row for residential purposes as 1x3bedroom, 1x2bedroom and 1x1bedroom flats. (Site includes 5 Montagu Row).

Received
8 March 2010
Decision level
Delegated (officer decision)
Public comments
1
Ward
Marylebone High Street
Agent
Stanway Little Associates
  1. Received8 Mar
  2. Validated16 Jun
  3. Consult.
  4. Target11 Aug
  5. Decided29 Sep

Decided in 105 days (council typically 49)

About this application

This is a full planning application for an extension at 79 Baker Street London W1U 6RG. Westminster has handled 4,484 applications of this type. This one was decided in 205 days, 22 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 2 listed buildings nearby. There has been 1 other application at this address. 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.See what's approved near your address

Application details

Postcode
W1U 6RG
Application type
Application for full Planning Permission
Scale / size
Small

Planning application dates

Date validated
16 June 2010
Consultation expiry
23 July 2010
Target decision date
11 August 2010
Committee meeting
29 September 2010

Applicant and agent

Agent
Stanway Little Associates
Agent address
The Studios 72 Ruskin Walk London SE24 9LZ

Planning decision

Statutory period
56 days

Publicity

Last advertised
2 July 2010
Advertisement expiry
23 July 2010
Site notice start
22 June 2010
Site notice end
13 July 2010

Additional information

Planning Portal ID
PP-00996773
Documents
9

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • 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.

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

Discuss this application on r/PlanningPermissionUK

For applicants and trades

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report