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Planning application

11 - 13 Cavendish Square London W1G 0AN

Decided Westminster 26/04387/FULL Full applications

Works: Roofing Windows or glazing

Relates to 26/04388/LBC

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Replacement roof lantern and roof tiles. (Linked with 26/04388/LBC)

As published by the council, reference 26/04387/FULL

Application record

Reference
26/04387/FULL
Category
Full applications
Status
Decided
Received
2 Jul 2026
Validated
9 Jul 2026
Ward
Marylebone
Postcode
W1G 0AN

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2026.

  • 26/04388/LBC Decided

    11 - 13 Cavendish Square London W1G 0AN

    Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

    Submitted 2 Jul 2026 Heritage and listed buildings
  • 26/04318/FULL Awaiting decision

    11 - 13 Cavendish Square London W1G 0AN

    Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

    Submitted 30 Jun 2026 Full applications
  • 26/04319/LBC Awaiting decision

    11 - 13 Cavendish Square London W1G 0AN

    Replacement flue to accompany new boiler. (Linked with 26/04318/FULL)

    Submitted 30 Jun 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 2 Jul 2026

    Received by Westminster

  2. 9 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. 11 Sep 2026

    Status changed to Decided

    Previously Pending.

Cases linked to this one on the register

  • 26/04388/LBC Decided

    11 - 13 Cavendish Square London W1G 0AN

    Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

    Submitted 2 Jul 2026 Heritage and listed buildings

1 later application on the register refers to this one:

  • 26/04388/LBC Decided

    11 - 13 Cavendish Square London W1G 0AN

    Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

    Submitted 2 Jul 2026 Heritage and listed buildings

Documents

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

9 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

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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 - 13 Cavendish Square London W1G 0AN

    26/04388/LBC Submitted 2 Jul 2026 50 yards away

    90% historically approved · decision due ~3 Sep

    Replacement roof lantern and roof tiles. (Linked with 26/04387/FULL)

    Decided Heritage and listed buildings Roofing Windows or glazing 9 docs

  • 11 - 13 Cavendish Square London W1G 0AN

    26/04318/FULL Submitted 30 Jun 2026 50 yards away

    88% historically approved · decision due ~27 Aug

    Replacement flue to accompany new boiler. (Linked with 26/04319/LBC)

    Awaiting decision Full applications

  • 11 - 13 Cavendish Square London W1G 0AN

    26/04319/LBC Submitted 30 Jun 2026 50 yards away

    90% historically approved · decision due ~27 Aug

    Replacement flue to accompany new boiler. (Linked with 26/04318/FULL)

    Awaiting decision Heritage and listed buildings

  • 9 Cavendish Square London W1G 9DF

    26/06413/FULL Submitted 18 Sep 2026 50 yards away

    88% historically approved · decision due ~13 Nov

    Installation of louvre grille in place of existing above-door glass panels on the lower ground floor.

    Awaiting decision Full applications

  • 9 Cavendish Square London W1G 9DF

    06/04103/ADFULL Submitted 26 May 2006 50 yards away

    Detailed drawings of windows and dormer windows pursuant to Conditions 11(i) and (v) of planning permission dated 16 September 2004 (RN 04/02391).

    Refused Full applications Loft or dormer Windows or glazing 7 docs

  • 9 Cavendish Square London W1G 9DF

    06/03701/ADFULL Submitted 12 May 2006 50 yards away

    Details of facing materials pursuant to Condition 9 of planning permission dated 16 September 2004 (RN 04/02391).

    Granted Full applications 3 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