12 St James's Gardens, London, W11 4RD

This site has had 2 applications since 2026.

• PP/26/01552 Awaiting decision

  12 St James's Gardens, London, W11 4RD

  Installation of single-storey lower ground floor rear extension and closet wing rooflight; replacement front lightwell staircase; reinstatement of ground floor partition; replacement windows, cornices, doors and floor finishes; installation of kitchen, two bathrooms and building services throughout.

  Submitted 27 Feb 2026 Full applications

1. 27 Feb 2026

   Received by Kensington and Chelsea

2. 1 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Kensington and Chelsea took a median of 84 days over the applications it decided in the last year.

This application is with Kensington and Chelsea for determination, against a statutory target of eight weeks. Over the last year Kensington and Chelsea decided heritage and listed building applications in a median of 120 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.

• 12 St James's Gardens, London, W11 4RD

  PP/26/01552 Submitted 27 Feb 2026 0.1 miles away

  94% historically approved · decision due ~24 Apr

  Installation of single-storey lower ground floor rear extension and closet wing rooflight; replacement front lightwell staircase; reinstatement of ground floor partition; replacement windows, cornices, doors and floor finishes; installation of kitchen, two bathrooms and building services throughout.

  Awaiting decision Full applications Extension Loft or dormer +1 49 docs
  Small domestic

• 1 Darnley Terrace, London, W11 4RL

  LB/23/07170 Submitted 1 Nov 2023 0.1 miles away

  Underpinning of closet wing extension and adjacent boundary wall in connection with approved development granted under PP/23/05366 and LB/23/05367

  Granted Heritage and listed buildings Extension 40 docs
  Small domestic

• 2 St James's Gardens, London, W11 4RB

  LB/23/00787 Submitted 1 Feb 2023 0.1 miles away

  Construction of full-width extension at rear lower ground floor level, with flush roof lights and extension of balcony above with metal railings. Internal alterations and installation of condensers in garden. ***WITHDRAWN***

  Withdrawn Heritage and listed buildings Extension Loft or dormer 17 docs

• 2 St James's Gardens, London, W11 4RB

  PP/23/00786 Submitted 1 Feb 2023 0.1 miles away

  Construction of full-width extension at rear lower ground floor level, with flush roof lights and extension of balcony above with metal railings. Internal alterations and installation of condensers in garden. ***WITHDRAWN***

  Withdrawn Full applications Extension Loft or dormer 16 docs

• 7 Darnley Terrace, London, W11 4RL

  CL/25/05809 Submitted 25 Sep 2025 0.1 miles away

  Erection of a garden studio in place of a roofed, pergola structure (Certificate of Proposed Development/Use)

  Granted Lawful development 14 docs

• 24 St Ann's Road, London, W11 4SR

  PP/26/01712 Submitted 9 Mar 2026 0.1 miles away

  Roof extension

  Granted Full applications Extension 21 docs

• LB/26/03098 Granted

  14 Holland Street, London, W8 4LT

  Removal on non-original furniture, fixtures and fittings. Installation of new coffee shop to include new floor finish over existing screed floor (floor boards retained), new light fittings, new coffee counter, plumbing and services. Limited refurbishment to shop front such as painting and new sign in place of existing.

  Received 10 Jun, published by the council 20 Jul 2026 Heritage and listed buildings
• LB/26/02918 Granted

  220 and 222 Earl's Court Road, London, SW5 9QA

  Proposed installation of roof top plant and internal alterations

  Received 2 Jun, published by the council 20 Jul 2026 Heritage and listed buildings
• LB/26/02796 Granted

  Flat 8, 89 Onslow Square, London, SW7 3LT

  Strip out entire property for a full refurbishment to include blocking up one entrance into the sitting room, supply and fit new kitchen and appliances, plumb in 2x new bathrooms, supply and fit new radiators where necessary, re-decorate entire property; supply and lay wooden floor in hallway with acoustic insulation.

  Received 26 May, published by the council 1 Aug 2026 Heritage and listed buildings
• LB/26/02366 Withdrawn

  10 Palace Gate, London, W8 5NF

  Replacement of exsiting defective internal rainwater downpipe.(Retrospective Application)

  Received 27 Apr, published by the council 20 Jul 2026 Heritage and listed buildings
• LB/26/02248 Withdrawn

  41 Halsey Street, London, SW3 2PT

  Refinements to lower ground floor conservatory and basement extension through removal of low external wall, installation of full height sliding doors, and reinstatement of larger external steps. Replace glazed flat roof at ground floor level with glass-box extension incorporating solid floor structure and internal walk on rooflight. Installation of glazed sliding doors out to a Juliet balcony with metal railings balustrade. Create access from living room by lowering sill of window to form archway; Single-storey extension to closet wing, aligning depth with No.?40 Halsey Street. New timber-framed glazed doors to the rear of extended wing. Widening opening to half-level study within partition to accommodate new double doors. Sunroom will include full-height sliding doors and Juliet balcony with painted or PPC metal balustrades.

  Received 20 Apr, published by the council 20 Jul 2026 Heritage and listed buildings