4 Grosvenor Square London W1K 4AE

This site has had 4 applications since 2026.

• 26/05994/LBC Awaiting decision

  4 Grosvenor Square London W1K 4AE

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Submitted 2 Sep 2026 Heritage and listed buildings
• 26/05448/LBC Withdrawn

  4 Grosvenor Square London W1K 4AE

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Submitted 11 Aug 2026 Heritage and listed buildings
• 26/05449/LBC Awaiting decision

  4 Grosvenor Square London W1K 4AE

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Submitted 11 Aug 2026 Heritage and listed buildings

1. 2 Sep 2026

   Received by Westminster

2. 11 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 October 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 65 days over the applications it decided in the last year.

1 later application on the register refers to this one:

• 26/05994/LBC Awaiting decision

  4 Grosvenor Square London W1K 4AE

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Submitted 2 Sep 2026 Heritage and listed buildings

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 91 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.

• 4 Grosvenor Square London W1K 4AE

  26/05448/LBC Submitted 11 Aug 2026 50 yards away

  90% historically approved · decision due ~8 Oct

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Withdrawn Heritage and listed buildings

• 4 Grosvenor Square London W1K 4AE

  26/05449/LBC Submitted 11 Aug 2026 50 yards away

  90% historically approved · decision due ~6 Oct

  Internal alterations including the refurbishment and stabilization of the secondary service staircase, fabric conservation, and the modernization of the vertical transport lift core infrastructure.

  Awaiting decision Heritage and listed buildings

• 4 Grosvenor Square London W1K 4AE

  26/05994/LBC Submitted 2 Sep 2026 50 yards away

  90% historically approved · decision due ~28 Oct

  Limited work to maintaining and repairing the roof; building facade and enhancing the accessibility of the entrance. (Linked to 26/05993/FULL)

  Awaiting decision Heritage and listed buildings

• 14 Three Kings Yard London W1K 4EH

  26/02050/LBC Submitted 27 Mar 2026 50 yards away

  90% historically approved · decision due ~22 May

  Retrofit and refurbishment of embassy building including external alterations at ground floor level to provide step free access through the creation of an external ramp to the entrance within private mews, installation of new and replacement plant and solar panels at roof level. (LINKED 26/02050/LBC)

  Awaiting decision Heritage and listed buildings

• 14 Three Kings Yard London W1K 4EH

  26/02049/FULL Submitted 27 Mar 2026 50 yards away

  87% historically approved · decision due ~22 May

  Retrofit and refurbishment of embassy building including external alterations at ground floor level to provide step free access through the creation of an external ramp to the entrance within private mews, installation of new and replacement plant and solar panels at roof level (LINKED 26/02050/LBC)

  Awaiting decision Full applications

• Grosvenor Square Gardens Grosvenor Square London W1K 6LD

  26/03492/TCA Submitted 28 May 2026 50 yards away

  1 x London plane (T503): Reduce apical branch by 1m

  Granted Trees 8 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising repolacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06234/FULL Awaiting decision

  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
• 26/06249/FULL Awaiting decision

  53 Wimpole Street London W1G 8YH

  Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

  Received 11 Sep, published by the council 18 Sep 2026 Full applications
• 26/03576/FULL Decided

  15A Devonshire Terrace London W2 3DW

  Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

  Received 1 Jun, published by the council 11 Sep 2026 Full applications