3 St James's Street London SW1A 1EG

1. 21 Aug 2025

   Received by Westminster

2. 8 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 3 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 66 days over the applications it decided in the last year.

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 94 days. More in our guide to how long planning decisions take.

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.

• 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

• 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

• 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

• 20 Crown Passage London SW1Y 6PP

  26/01245/FULL Submitted 4 Feb 2026 50 yards away

  Installation of two air conditioning units to rear elevation. Installation air vent cover at ground floor level to Crown Passage side elevation.

  Granted Full applications 20 docs

• 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

• 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