Duncan House Dolphin Square London SW1V 3PW

1. 20 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 15 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 90 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.

• Dolphin Square London

  26/04103/ADFULL Submitted 22 Jun 2026 50 yards away

  88% historically approved · decision due ~17 Aug

  Details of louvred and brick enclosures to the ASHPs at roof level pursuant to condition 10 of planning permission dated 08 March 2023 (RN: 23/00458/FULL)

  Awaiting decision Full applications 4 docs

• 46 Claverton Street London SW1V 3AU

  10/06649/NMA Submitted 2 Aug 2010 50 yards away

  Amendments to planning permission dated 11 August 2009 (RN: 09/03084), namely to add a dormer window to the rear.

  Granted Amendments Loft or dormer Windows or glazing 5 docs

• Third And Fourth Floor Maisonette 44 Claverton Street London SW1V 3AU

  08/04814/FULL Submitted 30 May 2008 50 yards away

  Installation of replacement timber windows at third and fourth floors.

  Granted Full applications Windows or glazing 8 docs

• 42 Claverton Street London SW1V 3AU

  04/05907/FULL Submitted 28 Jul 2004 50 yards away

  Erection of two-storey rear extension at basement and ground floor levels with balcony at rear ground floor level.

  Granted Full applications Extension 11 docs

• 50 Claverton Street London SW1V 3AU

  07/07102/FULL Submitted 10 Aug 2007 50 yards away

  Installation of mansard roof extension to provide additional living accommodation to top floor flat.

  Granted Full applications Extension Loft or dormer 8 docs

• Trees On Dolphin Square London SW1V 3LX

  25/08433/TCA Submitted 18 Nov 2025 50 yards away

  1 x willow: prune back from property to give clearance of approximately 0.8m, pruning back to the mid-point line of the two structural branches as annotated in the photo below i.e. removing the right-hand branch and retaining the left-hand branch. Reduce remaining crown by up to 1m to shape and tidy. 1 x hawthorn: prune back from property to give clearance of approximately 1.0m

  Granted Trees 4 docs

• 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
• 26/07403/FULL Awaiting decision

  Basement Floor And Ground Floor Queen Annes House 34 Queen Anne's Gate London SW1H 9AB

  Refurbishment and enhancement of the building to facilitate its continued use as offices with ancillary residential accommodation, together with associated conservation, restoration, accessibility improvements, building services upgrades, landscaping and ancillary works. Internal and external alterations associated with the repair. (Linked with 26/07404/LBC)

  Received 30 Oct, published by the council 3 Nov 2026 Full applications
• 26/07415/FULL Awaiting decision

  39 Montagu Square London W1H 2LL

  Amalgamation of Flats 3 and 4 (Use Class C3) to form one single dwelling (Use Class C3) including associated internal reconfiguration and refurbishments, alterations to access arrangements and improvements to the existing terrace and private amenity spaces, new plant and other associated works. (Linked with 26/07416/LBC)

  Received 30 Oct, published by the council 3 Nov 2026 Full applications
• 26/07397/FULL Awaiting decision

  8 Mortimer Street London W1T 3JJ

  External alterations at level six including the installation of a screen, additional access doors and revised lighting. 2 Fitzroy Place (8 Mortimer Street)

  Received 29 Oct, published by the council 3 Nov 2026 Full applications
• 26/07401/FULL Awaiting decision

  82 Jermyn Street London SW1Y 6JD

  Use of the ground floor unit as a drinking establishment (Sui Generis).

  Received 29 Oct, published by the council 3 Nov 2026 Full applications