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Planning application

13 Mason's Yard London SW1Y 6BU

Awaiting decision Westminster 26/00842/FULL Full Planning Permission Application

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

Proposal

Installation of four condenser units at roof level.

As published by the council, reference 26/00842/FULL

Application record

Reference
26/00842/FULL
Type
Full Planning Permission Application
Status
Pending
Received
11 Feb 2026
Validated
10 Apr 2026
Ward
St James's
Postcode
SW1Y 6BU

Timeline

Dates from the published record

  1. 11 Feb 2026

    Received by Westminster

  2. 10 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 5 June 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 66 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Bidwells LLP Agent, registered in Cambridge

Active · incorporated 2009 · Cambridge

799 applications on PlanIndex · across 90 councils · 91% 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

Documents

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

13 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 91 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

  • 11 - 12 St James's Square London SW1Y 4LB

    25/09401/LBC Submitted 22 Dec 2025 50 yards away

    90% historically approved · decision due ~16 Feb

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  • 11 - 12 St James's Square London SW1Y 4LB

    25/09400/FULL Submitted 22 Dec 2025 50 yards away

    87% historically approved · decision due ~16 Feb

    External and internal alterations, including the partial removal of non-heritage additions and the remodelling of the 1980s rear extension, provision of terraces and roof garden and associated works. (Linked to 25/09401/LBC)

    Awaiting decision Full applications Extension 128 docs
  • 14 St James's Square London SW1Y 4LG

    25/07098/ADLBC Submitted 2 Oct 2025 50 yards away

    Details of the new lourve to lower ground floor level within the front lightwell, pursuant to condition 3 of listed building consent dated 18 December 2024 (RN: 24/06486/LBC).

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    25/06988/ADFULL Submitted 29 Sep 2025 50 yards away

    Details of the new louvre to lower ground floor level within the front lightwell, pursuant to condition 4 of planning permission dated 18 December 2024 (RN: 24/06485/FULL).

    Granted Full applications 11 docs
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    26/01037/ADFULL Submitted 18 Feb 2026 50 yards away

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  • 14 St James's Square London SW1Y 4LG

    26/01737/ADLBC Submitted 18 Feb 2026 50 yards away

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In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

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    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
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    Received 14 Sep, published by the council 22 Sep 2026 Full applications
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    Variation of conditions 1 and removal of condition 6 of planning permission dated 12th November 2019 (RN 19/07202/FULL) for the Variation of condition 12 of planning permission dated 21 June 2013 (RN: 13/01330/FULL) for the: Demolition of single storey block to north east elevation of main hospital building. Erection of three storey building (plus basement level) with link to existing hospital fronting onto Grove End Road and erection of two storey extension to the main entrance building, both to provide additional hospital accommodation (Class D1). Installation of mechanical plant and associated external alterations. NAMELY, to include amended phase 2 drawings and condition 6 to be removed as the as approved 11 car parking space are no longer proposed and the car lift is no longer shown on the amended plans.

    Received 14 Sep, published by the council 22 Sep 2026 Full applications