The Dilly 21 Piccadilly London W1J 0BH

This site has had 12 applications since 2025: 5 approved, 0 refused.

• 26/05379/LBC Decided

  The Dilly 21 Piccadilly London W1J 0BH

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05378/FULL).

  Submitted 7 Aug 2026 Heritage and listed buildings
• 26/04200/LBC Decided

  The Dilly 21 Piccadilly London W1J 0BH

  Retrospective strip-out of retail units at 23-26 Piccadilly and basements at 5A Air Street / 67 Regent Street to shell condition, removing modern fit-out, services, plant and shopfront elements, with associated making good and damp proofing.

  Submitted 25 Jun 2026 Heritage and listed buildings
• 26/02997/ADLBC Awaiting decision

  The Dilly 21 Piccadilly London W1J 0BH

  Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment works, proposed windows, and proposed secondary glazing for each of the following window types: 1, 2, 3, 4, 5(a+b), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 pursuant to condition 3 of listed building dated 5th July 2023 (RN:22/04551/LBC) (Linked to 26/02953/ADFULL)

  Submitted 5 May 2026 Conditions
• 26/02953/ADFULL Awaiting decision

  The Dilly 21 Piccadilly London W1J 0BH

  Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment works, proposed windows, and proposed secondary glazing for each of the following window types: 1, 2, 3, 4, 5(a+b), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 pursuant to condition 4 of planning permission dated 5th July 2023 (RN:22/04550/FULL) (Linked to 26/02997/ADLBC)

  Submitted 5 May 2026 Full applications
• 26/02808/LBC Awaiting decision

  The Dilly 21 Piccadilly London W1J 0BH

  Retrospective application for internal refurbishment of Level 2 lift lobby.

  Submitted 28 Apr 2026 Heritage and listed buildings
• 26/00445/LBC Awaiting decision

  The Dilly 21 Piccadilly London W1J 0BH

  Internal refurbishment and redecoration of 283 guest rooms and corridors, floor levels 1 to 9.

  Submitted 26 Jan 2026 Heritage and listed buildings
• 25/09142/LBC Granted

  The Dilly 21 Piccadilly London W1J 0BH

  Internal works to refurbish the existing ground floor entrance bar and restaurant area

  Decided 5 May 2026 Heritage and listed buildings
• 25/08948/FULL Granted

  The Dilly 21 Piccadilly London W1J 0BH

  New external roof top plant and new ventilation ductwork to rear elevation. (Linked to 25/08949/LBC)

  Decided 20 Jul 2026 Full applications
• 25/08949/LBC Granted

  The Dilly 21 Piccadilly London W1J 0BH

  New external roof top plant and new ventilation ductwork to rear elevation. (Linked to 25/08948/FULL)

  Decided 20 Jul 2026 Heritage and listed buildings
• 25/08908/LBC Granted

  The Dilly 21 Piccadilly London W1J 0BH

  Repair works to existing plaster ceiling in hotel restaurant kitchen.

  Decided 28 Apr 2026 Heritage and listed buildings

1. 7 Aug 2026

   Received by Westminster

2. 12 Aug 2026

   Added to PlanIndex

3. 29 Sep 2026

   Status changed to Decided

   Previously Pending.

• 26/05379/LBC Decided

  The Dilly 21 Piccadilly London W1J 0BH

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05378/FULL).

  Submitted 7 Aug 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 26/05379/LBC Decided

  The Dilly 21 Piccadilly London W1J 0BH

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05378/FULL).

  Submitted 7 Aug 2026 Heritage and listed buildings

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.

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.

• The Dilly 21 Piccadilly London W1J 0BH

  26/05379/LBC Submitted 7 Aug 2026 50 yards away

  90% historically approved · decision due ~2 Oct

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05378/FULL).

  Decided Heritage and listed buildings Loft or dormer

• The Dilly 21 Piccadilly London W1J 0BH

  26/04200/LBC Submitted 25 Jun 2026 50 yards away

  90% historically approved · decision due ~20 Aug

  Retrospective strip-out of retail units at 23-26 Piccadilly and basements at 5A Air Street / 67 Regent Street to shell condition, removing modern fit-out, services, plant and shopfront elements, with associated making good and damp proofing.

  Decided Heritage and listed buildings Windows or glazing

• Ground Floor And Mezzanine Floor 69 Regent Street London W1B 4ED

  26/01306/ADV Submitted 2 Mar 2026 50 yards away

  82% historically approved · decision due ~27 Apr

  Display of flag measuring 2.35m x 1.2m on angled flag pole.

  Awaiting decision Advertising 5 docs

• The Dilly 21 Piccadilly London W1J 0BH

  26/02997/ADLBC Submitted 5 May 2026 50 yards away

  89% historically approved · decision due ~30 Jun

  Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment works, proposed windows, and proposed secondary glazing for each of the following window types: 1, 2, 3, 4, 5(a+b), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 pursuant to condition 3 of listed building dated 5th July 2023 (RN:22/04551/LBC) (Linked to 26/02953/ADFULL)

  Awaiting decision Conditions Windows or glazing 9 docs

• The Dilly 21 Piccadilly London W1J 0BH

  26/02953/ADFULL Submitted 5 May 2026 50 yards away

  88% historically approved · decision due ~30 Jun

  Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment works, proposed windows, and proposed secondary glazing for each of the following window types: 1, 2, 3, 4, 5(a+b), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 pursuant to condition 4 of planning permission dated 5th July 2023 (RN:22/04550/FULL) (Linked to 26/02997/ADLBC)

  Awaiting decision Full applications Windows or glazing 9 docs

• The Dilly 21 Piccadilly London W1J 0BH

  26/02808/LBC Submitted 28 Apr 2026 50 yards away

  90% historically approved · decision due ~30 Jun

  Retrospective application for internal refurbishment of Level 2 lift lobby.

  Awaiting decision Heritage and listed buildings 12 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