79 Chester Square London SW1W 9DU

This site has had 7 applications since 2026.

• 26/05726/ADFULL Decided

  79 Chester Square London SW1W 9DU

  Details of a further noise report to confirm a fixed maximum noise level pursuant to condition 12 (part 3) of planning permission dated 05 January 2023 (RN: 22/05927/FULL).

  Submitted 20 Aug 2026
• 26/04198/LBC Awaiting decision

  79 Chester Square London SW1W 9DU

  Reconfiguration of the approved photovoltaic array, including changing approved array to one with a lower number of higher performing panels and changing the mounting system (Amendment of Listed Building Consent dated 11 January 2023 RN: 22/05928/LBC.) (Linked with 26/04196/NMA)

  Submitted 25 Jun 2026 Heritage and listed buildings
• 26/04197/ADFULL Decided

  79 Chester Square London SW1W 9DU

  Detailed drawings and the manufacturers specification; of the photovoltaic panels that will be used on main roof and the roof of the mews building; pursuant condition 14 of Planning Permission dated 5th January 2023 (RN 22/05927/FULL)

  Decided 21 Sep 2026
• 26/04196/NMA Decided

  79 Chester Square London SW1W 9DU

  Amendments to planning permission dated 5th January 2023 (RN:22/05927/FULL) for "Excavation of basement storey beneath main house, demolition and rebuilding of mews house at new height plus the addition of a lower ground floor storey, demolition and rebuilding of main roof plus addition of plant equipment, erection of extension for lift from basement to third floor level, demolition and replacement of interconnecting extension between main and mews house, use of roof of interconnecting extension as a roof terrace, increasing height of boundary shared with 78 Chester Square and other external alterations". NAMELY, amendment to allow the reconfiguration of the approved photovoltaic array (inlcuding changing approved array to one with a lower number of higher performing panels) and the consequent amendment to the wording of condition 10.

  Decided 24 Jul 2026 Amendments
• 26/02993/ADFULL Awaiting decision

  79 Chester Square London SW1W 9DU

  Details of new interior, which must be appropriate to the period of the building and their location; pursuant to condition 5 (part iii) of planning permission dated 5th January 2023 (RN 22/05927/FULL)

  Submitted 7 May 2026 Full applications
• 26/02994/ADLBC Awaiting decision

  79 Chester Square London SW1W 9DU

  Details of new interior, which must be appropriate to the period of the building and their location; pursuant to condition 3 (part iii) of Listed Building Consent dated 11th January 2023 (RN 22/05928/LBC)

  Submitted 7 May 2026 Conditions

1. 6 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 1 July 2026, 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 91 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 full applications in a median of 119 days. More in our guide to how long planning decisions take.

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.

• 78 Chester Square London SW1W 9DU

  26/03241/ADLBC Submitted 18 May 2026 50 yards away

  89% historically approved · decision due ~13 Jul

  detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 3) pursuant to condition 3 (A), 6 of listed building dated 17th May 2024 (RN:24/00173/LBC)

  Awaiting decision Conditions Loft or dormer Windows or glazing 9 docs

• 79 Chester Square London SW1W 9DU

  26/02994/ADLBC Submitted 7 May 2026 50 yards away

  89% historically approved · decision due ~2 Jul

  Details of new interior, which must be appropriate to the period of the building and their location; pursuant to condition 3 (part iii) of Listed Building Consent dated 11th January 2023 (RN 22/05928/LBC)

  Awaiting decision Conditions 4 docs

• 78 Chester Square London SW1W 9DU

  26/03262/ADFULL Submitted 18 May 2026 50 yards away

  88% historically approved · decision due ~13 Jul

  Detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 6) pursuant to condition 6 and 9 of planning permission dated 17th May 2024 (RN:24/00172/FULL)

  Awaiting decision Full applications Loft or dormer Windows or glazing 9 docs

• 79 Chester Square London SW1W 9DU

  26/05726/ADFULL Submitted 20 Aug 2026 50 yards away

  89% historically approved · decision due ~15 Oct

  Details of a further noise report to confirm a fixed maximum noise level pursuant to condition 12 (part 3) of planning permission dated 05 January 2023 (RN: 22/05927/FULL).

  Decided

• 79 Chester Square London SW1W 9DU

  26/04198/LBC Submitted 25 Jun 2026 50 yards away

  90% historically approved · decision due ~20 Aug

  Reconfiguration of the approved photovoltaic array, including changing approved array to one with a lower number of higher performing panels and changing the mounting system (Amendment of Listed Building Consent dated 11 January 2023 RN: 22/05928/LBC.) (Linked with 26/04196/NMA)

  Awaiting decision Heritage and listed buildings

• 79 Chester Square London SW1W 9DU

  26/04197/ADFULL Submitted 25 Jun 2026 50 yards away

  Detailed drawings and the manufacturers specification; of the photovoltaic panels that will be used on main roof and the roof of the mews building; pursuant condition 14 of Planning Permission dated 5th January 2023 (RN 22/05927/FULL)

  Decided

• 26/06234/FULL Decided

  40 Grosvenor Place London SW1X 7HJ

  Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/06015/FULL Decided

  129 Saltram Crescent London W9 3JT

  Erection of a two-storey rear extension.

  Received 3 Sep, published by the council 11 Sep 2026 Full applications
• 26/07382/FULL Awaiting decision

  90 Gloucester Place London W1U 6HS

  Use of the building as an embassy (sui generis)

  Received 28 Oct, published by the council 2 Nov 2026 Full applications
• 26/07363/FULL Awaiting decision

  36 Kilravock Street London W10 4HX

  Demolition of existing rear/side extension and construction of a new extension together with new glazing and doors, and changing the existing rooflights to the rear roof slope with new rooflights.

  Received 28 Oct, published by the council 2 Nov 2026 Full applications
• 26/07371/FULL Awaiting decision

  8A Randolph Road London W9 1AN

  Amalgamation of two residential units with internal refurbishment and reconfiguration. (Linked with 26/07372/LBC)

  Received 28 Oct, published by the council 2 Nov 2026 Full applications