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Planning application

55 Baker Street London W1U 8EW

Awaiting decision Westminster 26/05934/FULL Full applications

Works: Extension Demolition

Relates to 25/04398/FULL

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Variation of Condition 1 of planning permission dated 11 August 2026 (Ref: 25/04398/FULL) for, 'Refurbishment of the building including partial demolition and extension of upper levels to enlarge an existing mixed-use building comprising office (Class E(g)), gymnasium (Class E(d)) and retail/food and beverage (Class E(a)-(b)) with soft and hard landscaping, pedestrian and vehicle access, cycle parking, public realm, plant and other works associated with the development'; Namely, to allow design amendments, including demolition and replacement of levels 7 and 8 and omission of approved level 8 gallery, infill extensions into the rear courtyard and internal atria, replacement of the atria roofs, relocation of rooftop plant, addition of green walls along firefighting cores, associated alterations to the upper level elevations, roofscape and terraces, reconfiguration of landscaping at ground floor and minor internal layout changes. (Application under Section 73 of the Act)

As published by the council, reference 26/05934/FULL

Application record

Reference
26/05934/FULL
Category
Full applications
Status
Pending
Received
1 Sep 2026
Validated
8 Oct 2026
Ward
Marylebone
Postcode
W1U 8EW

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 1 approved, 0 refused.

  • 25/09005/FULL Awaiting decision

    55 Baker Street London W1U 8EW

    Installation of a deployment of a BT Street Hub 3 unit (Linked to 25/09006/ADV)

    Submitted 11 Dec 2025 Full applications
  • 25/09006/ADV Awaiting decision

    55 Baker Street London W1U 8EW

    Display of internally illuminated other sign measuring 0.95m X 1.67m (Linked to 25/09005/FULL)

    Submitted 11 Dec 2025 Advertising
  • 25/04398/FULL Granted

    55 Baker Street London W1U 8EW

    Refurbishment of the building including partial demolition and extension of upper levels to enlarge an existing mixed-use building comprising office (Class E(g)), gymnasium (Class E(d)) and retail/food and beverage (Class E(a)-(b)) with soft and hard landscaping, pedestrian and vehicle access, cycle parking, public realm, plant and other works associated with the development.

    Decided 11 Aug 2026 Full applications

Timeline

Dates from the published record

  1. 1 Sep 2026

    Received by Westminster

  2. 8 Oct 2026

    Validated

    Checked as complete and ready for consideration.

  3. 8 Oct 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 3 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 86 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 25/04398/FULL Granted

    55 Baker Street London W1U 8EW

    Refurbishment of the building including partial demolition and extension of upper levels to enlarge an existing mixed-use building comprising office (Class E(g)), gymnasium (Class E(d)) and retail/food and beverage (Class E(a)-(b)) with soft and hard landscaping, pedestrian and vehicle access, cycle parking, public realm, plant and other works associated with the development.

    Decided 11 Aug 2026 Full applications

Who's behind it

Company information only, from the register and Companies House

DP9 Ltd Agent

Active · incorporated 2004

2,601 applications on PlanIndex · across 36 councils · 98% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 55 Baker Street London W1U 8EW

    25/09006/ADV Submitted 11 Dec 2025 50 yards away

    82% historically approved · decision due ~5 Feb

    Display of internally illuminated other sign measuring 0.95m X 1.67m (Linked to 25/09005/FULL)

    Awaiting decision Advertising 2 docs

  • 55 Baker Street London W1U 8EW

    25/09005/FULL Submitted 11 Dec 2025 50 yards away

    88% historically approved · decision due ~5 Feb

    Installation of a deployment of a BT Street Hub 3 unit (Linked to 25/09006/ADV)

    Awaiting decision Full applications 20 docs
    Several homes

  • 55 Baker Street London W1U 8EW

    25/04398/FULL Submitted 26 Jun 2025 50 yards away

    Refurbishment of the building including partial demolition and extension of upper levels to enlarge an existing mixed-use building comprising office (Class E(g)), gymnasium (Class E(d)) and retail/food and beverage (Class E(a)-(b)) with soft and hard landscaping, pedestrian and vehicle access, cycle parking, public realm, plant and other works associated with the development.

    Granted Full applications Extension Demolition 85 docs

  • 15 Rodmarton Street London W1U 8BL

    26/06940/ADFULL Submitted 12 Oct 2026 50 yards away

    89% historically approved · decision due ~7 Dec

    Details of all new windows and external doors pursuant to condition 4 of planning permission dated 05 May 2026 (RN: 26/00539/FULL)

    Decided Windows or glazing

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

    25/07925/ADFULL Submitted 31 Oct 2025 50 yards away

    Detailed site investigation pursuant to Condition 24 (Phases 2 & 3) of planning permission dated 4th April 2025 (RN: 22/08200/FULL)

    Granted Full applications 14 docs

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

    25/05167/NMA Submitted 24 Jul 2025 50 yards away

    93% historically approved · decision due ~18 Sep

    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 approved drawings to reflect façade amendments and internal reconfiguration.

    Awaiting decision Amendments Demolition 35 docs

In Westminster

  • 26/05984/FULL Decided

    41 Sutherland Street London SW1V 4JX

    Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

    Received 2 Sep, published by the council 11 Sep 2026 Full applications
  • 26/06134/FULL Decided

    Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

    Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

    Received 8 Sep, published by the council 15 Sep 2026 Full applications
  • 26/07258/FULL Awaiting decision

    16A Croxley Road London W9 3HL

    Installation of air to air heat pumps to offices and bedrooms.

    Received 22 Oct, published by the council 23 Oct 2026 Full applications
  • 26/07193/FULL Awaiting decision

    98 Victoria Street London SW1E 5JL

    Shopfront alterations. (Linked with 26/07194/ADV)

    Received 21 Oct, published by the council 22 Oct 2026 Full applications
  • 26/07187/FULL Awaiting decision

    Ground Floor Flat 151 Portnall Road London W9 3BN

    Erection of a single storey rear extension.

    Received 21 Oct, published by the council 22 Oct 2026 Full applications