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Planning application

11 Chesterfield Street London W1J 5JN

Awaiting decision Westminster 26/03679/ADFULL Approval of Details (Full PP)

Works: Extension

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

Proposal

Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 7 of planning permission dated 01 June 2026 (RN: 25/09329/FULL) [Linked to 26/03731/ADLBC]

As published by the council, reference 26/03679/ADFULL

Application record

Reference
26/03679/ADFULL
Type
Approval of Details (Full PP)
Status
Pending
Received
5 Jun 2026
Validated
5 Jun 2026
Ward
West End
Postcode
W1J 5JN

Site history

Applications at this address on the Westminster register

This site has had 5 applications since 2025: 2 approved, 0 refused.

  • 26/03731/ADLBC Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 6 of listed building consent dated 01 June 2026 (RN: 25/09330/LBC) [Linked to 26/03679/ADFULL]

    Submitted 5 Jun 2026 Conditions
  • 26/02482/LBC Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Removal and replacement of existing stair case from Lower Ground floor to Fifth Floor.

    Submitted 15 Apr 2026 Heritage and listed buildings
  • 25/09329/FULL Granted

    11 Chesterfield Street London W1J 5JN

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09330/LBC]

    Decided 1 Jun 2026 Full applications
  • 25/09330/LBC Granted

    11 Chesterfield Street London W1J 5JN

    Rear extension at ground and lower ground floor, rear outrigger extension from ground to second floor, roof alterations and internal alterations and new plant. [Linked to 25/09329/FULL]

    Decided 1 Jun 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 5 Jun 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 31 July 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 91 days over the applications it decided in the last year.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/03731/ADLBC Awaiting decision

    11 Chesterfield Street London W1J 5JN

    Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 6 of listed building consent dated 01 June 2026 (RN: 25/09330/LBC) [Linked to 26/03679/ADFULL]

    Submitted 5 Jun 2026 Conditions

Who's behind it

Company information only, from the register and Companies House

Holloway and Holloway Architects Agent, an architecture practice registered in Maidenhead

Active · incorporated 2021 · Maidenhead

6 applications on PlanIndex · across 2 councils

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

Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

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

  • 12 Chesterfield Street London W1J 5JN

    25/06201/ADFULL Submitted 1 Sep 2025 50 yards away

    Drawings and details pursuant to condition 8 (extent of demolition and associated works to main roof level) of planning permission dated 21st October 2024 (RN: 24/04554/FULL)

    Granted Full applications Demolition 41 docs

  • 11 Chesterfield Street London W1J 5JN

    26/02482/LBC Submitted 15 Apr 2026 50 yards away

    90% historically approved · decision due ~10 Jun

    Removal and replacement of existing stair case from Lower Ground floor to Fifth Floor.

    Awaiting decision Heritage and listed buildings 4 docs

  • 15 Chesterfield Street London W1J 5JN

    25/05529/ADV Submitted 7 Aug 2025 50 yards away

    Display of non-illuminated projecting sign measuring 0.92m x 0.43m. (Linked with 25/05522/LBC)

    Decided Advertising 13 docs

  • 15 Chesterfield Street London W1J 5JN

    25/05522/LBC Submitted 6 Aug 2025 50 yards away

    Installation of a projecting sign on Curzon Street elevation. (Linked with 25/05529/ADV)

    Refused Heritage and listed buildings 18 docs

  • 11 Chesterfield Street London W1J 5JN

    26/03731/ADLBC Submitted 5 Jun 2026 50 yards away

    89% historically approved · decision due ~31 Jul

    Details of amended plans and elevations to show the new extension at rear ground floor level more closely integrated with the architectural character and design of the building pursuant to condition 6 of listed building consent dated 01 June 2026 (RN: 25/09330/LBC) [Linked to 26/03679/ADFULL]

    Awaiting decision Conditions Extension 8 docs

  • 12 Chesterfield Street London W1J 5JN

    26/06650/ADLBC Submitted 29 Sep 2026 50 yards away

    89% historically approved · decision due ~26 Nov

    Details of specification for brickwork recolouring/restoration and photo of sample area pursuant to condition 6 of listed building consent dated 21 October 2024 (RN: 24/04555/LBC). (Linked with 26/06466/ADFULL)

    Awaiting decision

In Westminster

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    Received 3 Aug, published by the council 28 Aug 2026 Full applications
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    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL Awaiting decision

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    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications