Harmont House 20 Harley Street London W1G 9PH

1. 10 Jul 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. 24 Aug 2026

   Decision issued

4. 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.

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.

• Harmont House 20 - 22 Harley Street London W1G 9PH

  05/04133/CAC Submitted 26 May 2005 50 yards away

  Removal of existing roof structures.

  Decided Heritage and listed buildings 2 docs

• Harmont House 20 - 22 Harley Street London W1G 9PH

  05/04134/FULL Submitted 26 May 2005 50 yards away

  Alterations and extensions to existing roof structure to provide three residential flats.

  Refused Full applications New dwelling Extension 14 docs

• Harmont House 20-22 Harley Street London W1G 9PH

  12/06790/FULL Submitted 3 Jul 2012 50 yards away

  Installation of air conditioning condenser and compressor at fifth floor level.

  Granted Full applications 7 docs

• 37 Harley Street London W1G 8QG

  26/05434/LBC Submitted 10 Aug 2026 50 yards away

  Installation of secondary glazing to the arched window at ground floor level.

  Decided Heritage and listed buildings Windows or glazing

• 37 Harley Street London W1G 8QG

  26/06417/ADLBC Submitted 18 Sep 2026 50 yards away

  89% historically approved · decision due ~13 Nov

  Detailed of the proposed fan coil units and service drawing plans and a method statement in relation to the installation of the intenal and external units pursuant to conditions 3 and 4 of listed building consent dated 18th August 2026 (RN: 26/03518/LBC).

  Decided

• 23 Queen Anne Street London W1G 9HN

  26/00460/FULL Submitted 27 Jan 2026 50 yards away

  88% historically approved · decision due ~24 Mar

  Installation of photovoltaic panels (PV) at main roof level.

  Awaiting decision Full applications 14 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