23 Chelsea Square, London, SW3 6LF

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

Kensington and Chelsea granted permission on 24 April 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.

The published feed does not state which type of application this is; the register entry on Kensington and Chelsea's portal will say. Our guide explains the common types.

• 15 Chelsea Square, London, SW3 6LF

  PP/24/05884 Submitted 2 Sep 2024 0m away

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

  Granted Full applications 23 docs

• 15 Chelsea Square, London, SW3 6LF

  PP/26/01705 Submitted 8 Mar 2026 0m away

  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.

  Granted Full applications Extension Windows or glazing 28 docs
  Small domestic

• 13 Chelsea Square, London, SW3 6LF

  CON/22/01555 Submitted 7 Mar 2022 0m away

  Details required by condition nos. 3 (construction traffic management plan (CTMP)) and 4 (professional management of engineering works) of planning permission 21/07922 (Construction of single-storey basement extension below the footprint of the property; removal of extension attached to the flank wall of garage to rebuild the flank wall and install a new door and glazed panel; alterations to fenestration at front and rear elevations; and installation of black painted metal railings to the top of the parapet wall)

  Granted Conditions Extension Windows or glazing 8 docs
  Small domestic

• 15 Chelsea Square, London, SW3 6LF

  CON/26/00449 Submitted 12 Dec 2025 0m away

  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).

  Granted Conditions Extension Demolition +1 14 docs
  Small domestic

• 15 Chelsea Square, London, SW3 6LF

  CL/26/01546 Submitted 26 Feb 2026 0m away

  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)

  Granted Lawful development Windows or glazing 15 docs

• 14 Chelsea Square, London, SW3 6LF

  CON/26/01382 Submitted 11 Mar 2026 0m away

  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)

  Granted Conditions 8 docs
  Small domestic