Development Site At 38-70 Baker Street, 64-66 Blandford Street And 43-45 Dorset Street London

25/07926/NMANon-material amendmentsApproved

Discharge / amendments

Approved on 13 May 2026

Site boundary (council red line)

Proposal

Amendments to planning permission dated 4th April 2025 (RN:22/08200/FULL) for, 'Demolition of the existing buildings and redevelopment above a retained basement to create a mixed-use scheme providing Class E commercial space (retail, restaurants, offices), a community space, and 17 residential units within a new building consisting of ground plus 7 storeys plus rooftop amenity for the commercial, and ground plus 7 storeys for the residential element, improvements to the public realm and pedestrian routes around the perimeter of the Site and along Broadstone Place, consolidated servicing, ancillary plant and storage, cycle parking, and other associated works'; Namely, to amend the wording of Condition 34 (Circular Economy).

Received: 31 October 2025
Council: City of Westminster
Ward: Marylebone

ReceivedReceived31 Oct
ValidatedValidated31 Oct
Consult.Consultation
TargetTarget Date28 Nov
DecidedDecided13 May

Decided in 194 days (council typically 49)

About this application

This is an application to amend a permission at Development Site At 38-70 Baker Street, 64-66 Blandford Street And 43-45 Dorset Street London. Westminster has handled 604 applications of this type. This one was decided in 194 days, 21 weeks longer than Westminster's typical decision time. The site is in 6 listed buildings nearby. There have been 11 other applications at this address. In the past year there have been 171 applications across Marylebone.

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

Application type: Non-material amendments
Scale / size: Medium
Number of dwellings: 17

Planning application dates

Date validated: 31 October 2025
Target decision date: 28 November 2025

Applicant and agent

Agent: Newmark
Agent address: One Fitzroy, 6 Mortimer Street, London W1T 3JJ United Kingdom

Planning decision

Statutory period: 28 days

Additional information

Planning Portal ID: PP-14335253
Comments: 0
Documents: 6

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Portman EstatePart of the site
Listed building: Grade II: Fire StationOn or next to this site · +3 more
Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (21)

flood storage areas, 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.

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

2025
31 Oct
Detailed site investigation pursuant to condition 24 (phase 2 & 3) of planning permission dated 4th April…
ApprovedDischarge of conditionsFiled alongside25/07925/ADFULL
2025
31 Oct
Amendments to planning permission dated 4th April 2025 (RN:22/08200/FULL
This applicationApprovedNon-material amendment25/07926/NMA

Planning history at this site

15 other applications at this property, newest first.

Source: Westminster

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

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