20 Crown Passage London SW1Y 6PP

This site has had 2 applications since 2026: 1 approved, 0 refused.

• 26/02827/CLLB Awaiting decision

  20 Crown Passage London SW1Y 6PP

  Air conditioning condenser unit on the back wall of the property, at intermediate 2nd- 3rd floor level. 3 air conditioning condenser units provide the heating system for the upper 3 floors of the property. They are partially or fully hidden from the view of the properties opposite. 2 units have been present for more than 10 years, the 3rd unit for more than 4 years.

  Submitted 24 Apr 2026

1. 4 Feb 2026

   Received by Westminster

2. 1 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Jun 2026

   Decision issued: Application Permitted

4. 21 Jul 2026

   Added to PlanIndex

Westminster granted permission on 23 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• 20 Crown Passage London SW1Y 6PP

  26/02827/CLLB Submitted 24 Apr 2026 50 yards away

  89% historically approved · decision due ~19 Jun

  Air conditioning condenser unit on the back wall of the property, at intermediate 2nd- 3rd floor level. 3 air conditioning condenser units provide the heating system for the upper 3 floors of the property. They are partially or fully hidden from the view of the properties opposite. 2 units have been present for more than 10 years, the 3rd unit for more than 4 years.

  Awaiting decision 2 docs
  Several homes

• 19 Crown Passage London SW1Y 6PP

  22/04746/LBC Submitted 15 Jul 2022 50 yards away

  Internal alterations at basement level.

  Granted Heritage and listed buildings 16 docs

• Byron House 7 - 9 St James's Street London SW1A 1EE

  26/05166/FULL Submitted 31 Jul 2026 50 yards away

  88% historically approved · decision due ~25 Sep

  Variation of conditions 4 and 5 of planning permission dated 16 June 2025 (RN: 25/03133/FULL) for the: Remodelling of existing seventh floor roof extension including enlarged window openings, timber louvres to existing plant area and creation of roof terrace with metal balustrade and planter boxes. NAMELY, to allow extending the hours of operation; making it available for third party use; and allowing for the playing of music.

  Awaiting decision Full applications Extension Windows or glazing

• 1 Pickering Place London SW1A 1EA

  25/05973/COLBC Submitted 21 Aug 2025 50 yards away

  90% historically approved · decision due ~3 Nov

  Installation of original gas lantern (1 - 4 Pickering Place)

  Awaiting decision Heritage and listed buildings 24 docs

• 3 St James's Street London SW1A 1EG

  25/05974/COLBC Submitted 21 Aug 2025 50 yards away

  90% historically approved · decision due ~3 Nov

  Installation of original gas lantern.

  Awaiting decision Heritage and listed buildings 25 docs

• 20 King Street St James's London SW1Y 6QY

  23/03379/CLLB Submitted 22 May 2023 50 yards away

  Works at third floor level in relation to office fit-out.

  Granted 9 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