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

  87% 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

• 4 St James's Street London SW1A 1EF

  26/04359/LBC Submitted 1 Jul 2026 50 yards away

  90% historically approved · decision due ~26 Aug

  Alterations to the interior built fabric to improve the retail space.

  Decided Heritage and listed buildings

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06294/FULL Awaiting decision

  15 Eaton Mews South London SW1W 9HP

  Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06317/FULL 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 26/06318/LBC)

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06273/FULL Awaiting decision

  9A Grosvenor Square London W1K 5AE

  Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

  Received 14 Sep, published by the council 22 Sep 2026 Full applications