ARB/26/01031

1. 19 Mar 2026

   Received by Kensington and Chelsea

2. 24 Apr 2026

   Decision issued: Raise No Objection

3. 20 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

This page mirrors an entry on the statutory planning register that Kensington and Chelsea is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• PP/24/05884 Granted

  15 Chelsea Square, London, SW3 6LF

  Installation of five air conditioning units within a louvered acoustic enclosure at rear of second floor roof terrace

  2 Sep 2024 0m away Full applications
• PP/26/01705 Granted

  15 Chelsea Square, London, SW3 6LF

  Construction of a single-storey basement extension, reconfiguration of the open space/garden at the rear of the property at both basement and ground floor levels, replacement of the L-shaped external concrete staircase with a steel spiral staircase, realignment of the rear wall of the main basement accommodation outwards by 1.5 metres into the paved external area, proposed extension of the ground floor rear terrace by approx. 0.7m over the top of the extended basement accommodation and window fenestration alterations to cinema room.

  8 Mar 2026 0m away Full applications
• CON/26/00449 Granted

  15 Chelsea Square, London, SW3 6LF

  Details required by condition 7 (Contamination - Verification Report) of planning permission 23/02435 (Construction of single-storey basement extension below footprint of property; demolition of rear single-storey flat roof structure; replacement windows at courtyard elevation; replacement of 4 windows and door with French doors; replacement of railings on parapet wall around second floor roof terrace).

  12 Dec 2025 0m away Conditions
• CL/26/01546 Granted

  15 Chelsea Square, London, SW3 6LF

  Replacement of six existing windows and door on ground floor side elevation with a pair of French doors with side-lights and bay window;in white painted hardwood (Certificate of Lawful Proposed Use/Development)

  26 Feb 2026 0m away Lawful development
• CON/26/01382 Granted

  14 Chelsea Square, London, SW3 6LF

  Details required by Condition 3 (timber screening) of planning permission PP/25/02407 (Installation of air conditioning units, and retention of timber screen fence and doors with sidelights on second floor roof terrace)

  11 Mar 2026 0m away Conditions
• CON/25/04789 Withdrawn

  15 Chelsea Square, London, SW3 6LF

  Details required by condition 7 (Contamination - Verification report) of planning permission 23/02435 (Construction of single-storey basement extension below footprint of property; demolition of rear single storey flat roof structure; replacement windows at courtyard elevation; replacement of 4 windows and door with French doors; replacement of railings on parapet wall around second floor roof terrace)

  5 Aug 2025 2m away Conditions