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

26/03376/ADFULLApproval of Details (Full PP)Permitted

Discharge / amendments

Proposal

Detailed completed Appendix A checklist from the Code of Construction Practice, signed by the applicant and approved by the Council's Environmental Sciences Team pursuant to condition 3 of planning permission dated 4th April 2025 (RN:22/08200).

Received: 21 May 2026
Decided: 8 June 2026
Council: City of Westminster
Ward: Marylebone

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.

ReceivedSubmitted21 May
ValidatedValidated21 May
Consult.Consultation
TargetTarget Date16 Jul
DecidedDecided8 Jun

Decided in 18 days (council typically 49)

7 weeks typical decision time in Westminster92% of conditions applications approved

This is an application to discharge conditions at Development Site At 38-70 Baker Street, 64-66 Blandford Street And 43-45 Dorset Street London. Westminster has handled 3,063 applications of this type and approves 92% of them, typically deciding them in 37 days. This one was decided in 18 days, 3 weeks quicker than Westminster's median. The site is in 6 listed buildings nearby. There have been 11 other applications at this address. In the past year there have been 196 applications across Marylebone.

Application Details

Reference

26/03376/ADFULL

Address

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

Local Authority

Westminster

Application Type

Approval of Details (Full PP)

Scale / Size

Small

Decision Status

Permitted

Current Status

Pending

Ward

Marylebone

Applicant & Agent

Agent

Newmark

Agent Address

One Fitzroy, 6 Mortimer Street, London W1T 3JJ United Kingdom

Planning Application Dates

Date Received

21 May 2026

Target Decision Date

16 July 2026

Date Decided

8 June 2026

Date Validated

21 May 2026

Date Submitted

21 May 2026

Planning Decision

Statutory Period

56 days

Publicity

Appeal

Additional Information

Planning Portal ID

PP-14863463

Comments

Documents

Coordinates

51.518850, -0.155765

Enriching application data

2/3

Council recordsAppealsFlood risk

Source: Westminster

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

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Planning history at this site

16 other applications at this property, newest first.

Planning constraints

Designations that overlap or adjoin the site outline.

Conservation area: Portman EstatePart of the site
Listed building: Grade II: 67, BLANDFORD STREET (See details for further address information)On or next to this site · +5 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.

© 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.

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