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Planning application

13 - 16 Carlton House Terrace London SW1Y 5AH

Awaiting decision Westminster 26/03325/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 new painted black metal vehicle gates within the entrances to the existing driveways of 16-17, Carlton House Terrace. Linked with 26/03326/LBC

As published by the council, reference 26/03325/FULL

Application record

Reference
26/03325/FULL
Type
Full Planning Permission Application
Status
Pending
Received
20 May 2026
Validated
20 May 2026
Ward
St James's
Postcode
SW1Y 5AH

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2026.

  • 26/04946/LBC Decided

    13 - 16 Carlton House Terrace London SW1Y 5AH

    Installation of metal window bars and gates to the lightwells at 13- 16 Carlton House Terrace.

    Submitted 23 Jul 2026 Heritage and listed buildings
  • 26/04945/FULL Decided

    13 - 16 Carlton House Terrace London SW1Y 5AH

    Installation of metal window bars and gates to the lightwells at 13- 16 Carlton House Terrace.

    Submitted 23 Jul 2026 Full applications
  • 26/03326/LBC Awaiting decision

    13 - 16 Carlton House Terrace London SW1Y 5AH

    Installation of new painted black metal vehicle gates within the entrances to the existing driveways of 16-17, Carlton House Terrace. Linked with 26/03325/FULL

    Submitted 20 May 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 20 May 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 15 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.

Who's behind it

Company information only, from the register and Companies House

Donald Insall Associates Ltd Agent, registered in London

Active · incorporated 1981 · London

202 applications on PlanIndex · across 43 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

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 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

  • 13 - 16 Carlton House Terrace London SW1Y 5AH

    26/03326/LBC Submitted 20 May 2026 50 yards away

    90% historically approved · decision due ~15 Jul

    Installation of new painted black metal vehicle gates within the entrances to the existing driveways of 16-17, Carlton House Terrace. Linked with 26/03325/FULL

    Awaiting decision Heritage and listed buildings 13 docs

  • 13 - 16 Carlton House Terrace London SW1Y 5AH

    26/04946/LBC Submitted 23 Jul 2026 50 yards away

    90% historically approved · decision due ~17 Sep

    Installation of metal window bars and gates to the lightwells at 13- 16 Carlton House Terrace.

    Decided Heritage and listed buildings Windows or glazing

  • 13 - 16 Carlton House Terrace London SW1Y 5AH

    26/04945/FULL Submitted 23 Jul 2026 50 yards away

    88% historically approved · decision due ~17 Sep

    Installation of metal window bars and gates to the lightwells at 13- 16 Carlton House Terrace.

    Decided Full applications Windows or glazing

  • 20 Carlton House Terrace London SW1Y 5AN

    25/06975/FULL Submitted 29 Sep 2025 50 yards away

    Installation of external lighting to the eighth and tenth floor terraces.

    Granted Full applications 16 docs

  • 20 Carlton House Terrace London SW1Y 5AN

    25/05734/FULL Submitted 14 Aug 2025 50 yards away

    Amendments to the glazed pavilion at tenth floor terrace level.

    Granted Full applications Windows or glazing 22 docs

  • 20 Carlton House Terrace London SW1Y 5AN

    25/06152/ADFULL Submitted 29 Aug 2025 50 yards away

    Details of manufacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).

    Granted Full applications 10 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

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

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    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