The Dilly 21 Piccadilly London W1J 0BH

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

• 26/05378/FULL Awaiting decision

  The Dilly 21 Piccadilly London W1J 0BH

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05379/LBC)

  Submitted 7 Aug 2026 Full applications
• 26/05379/LBC Awaiting decision

  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
• 26/02997/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. 25 Jun 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. 11 Sep 2026

   Status changed to Decided

   Previously Pending.

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.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• The Dilly 21 Piccadilly London W1J 0BH

  26/05378/FULL Submitted 7 Aug 2026 50 yards away

  87% historically approved · decision due ~2 Oct

  External repair and conservation works to existing facades, pitched and flat roofs, dormers and chimneys (linked with 26/05379/LBC)

  Awaiting decision Full applications Loft or dormer

• 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).

  Awaiting decision Heritage and listed buildings Loft or dormer

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

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

  84% 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

  90% 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

  87% 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

• 26/04878/LBC Decided

  34 Grosvenor Street London W1K 4QU

  Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

  Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
• 26/06299/LBC Awaiting decision

  Apartment 33 24 Park Crescent London W1B 1AA

  Alterations to internal partitions, door openings, doors and floor finishes.

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/06305/LBC Awaiting decision

  33A Dean Street London W1D 4PP

  Installation of new concrete slab with drainage channels at basement level and new fire surround in B.01.

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/06318/LBC Awaiting decision

  124 Hamilton Terrace London NW8 9UT

  Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06317/FULL)

  Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
• 26/04141/LBC Decided

  80E Randolph Avenue London W9 1BG

  Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

  Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings