94 The Quadrangle Sussex Gardens London W2 2RR

1. 3 Jun 2026

   Received by Westminster

2. 10 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 5 August 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.

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.

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.

• 122 Devonport 23 Southwick Street London W2 2QH

  07/02874/FULL Submitted 29 Mar 2007 50 yards away

  Extension of garden room at roof level onto the existing terrace.

  Granted Full applications Extension 11 docs

• 127 Devonport 23 Southwick Street London W2 2QH

  04/05718/FULL Submitted 22 Jul 2004 50 yards away

  Erection of an extension on the roof terrace at sixth floor level to provide additional living space.

  Granted Full applications Extension 14 docs

• 127 Devonport 23 Southwick Street London W2 2QH

  05/04866/FULL Submitted 20 Jun 2005 50 yards away

  Construction of extension at roof terrace level to provide additional space as a kitchen/dining room space.

  Withdrawn Full applications Extension 8 docs

• 115 Devonport 23 Southwick Street London W2 2QH

  12/01790/CAC Submitted 17 Feb 2012 50 yards away

  Rear extension at top floor flat to create a new conservatory.

  Decided Heritage and listed buildings Extension

• 3 Southwick Street London W2 2PR

  26/02243/CLOPUD Submitted 2 Apr 2026 50 yards away

  84% historically approved · decision due ~28 May

  Proposed use of the Property as an HMO comprising six bedsitting rooms for up to six occupants (Use Class C4).

  Awaiting decision Lawful development 7 docs

• 1 To 16 The Quadrangle Sussex Gardens London

  26/00204/TCA Submitted 14 Jan 2026 100 yards away

  T228 1 x silver birch: crown lift to 2.5m over footpath and road. T482, 483, 484, 485, 486, 487, 488 7 x Himalayan birch: crown lift to 3m over road/parking/footpath.

  Granted Trees 7 docs

• 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