Basement And Ground Floor Maisonette 15 Guildhouse Street London SW1V 1JB

1. 7 Sep 2026

   Received by Westminster

2. 14 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 November 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.

• 1 Charlotte Place London SW1V 1DP

  26/03172/FULL Submitted 14 May 2026 50 yards away

  88% historically approved · decision due ~14 Jul

  Replacement of metal garage doors with timber part glazed.

  Awaiting decision Full applications Windows or glazing 9 docs

• 36 Longmoore Street London SW1V 1JF

  25/08211/FULL Submitted 7 Nov 2025 50 yards away

  Installation of new door and fire escape ladder within front basement lightwell; alterations to front boundary railings to form a gate; creation of new door opening with Juliette balcony at rear ground floor level and installation of tri-fold doors at rear basement level.

  Granted Full applications 20 docs

• 93 - 94 Wilton Road London SW1V 1DW

  26/03447/ADV Submitted 26 May 2026 50 yards away

  82% historically approved · decision due ~27 Jul

  Display of a non-illuminated projecting sign measuring 0.5m x 0.4m; a non-illuminated fascia sign measuring 0.75m x 3.79m; and an internally illuminated menu case measuring 0.99m x 0.4m.

  Awaiting decision Advertising 8 docs

• 93 - 94 Wilton Road London SW1V 1DW

  26/02985/ADFULL Submitted 6 May 2026 50 yards away

  88% historically approved · decision due ~1 Jul

  Detailed drawings of the acoustic enclosure (specifying materials and finish) pursuant to partial discharge of condition 7 (part i) of planning permission dated 6th march 2026 (RN: 25/08307/FULL).

  Awaiting decision Full applications 5 docs

• 93 - 94 Wilton Road London SW1V 1DW

  26/02843/ADFULL Submitted 29 Apr 2026 50 yards away

  88% historically approved · decision due ~24 Jun

  Details of acoustic enclosure pursuant to partial discharge of condition 7 (i) of planning permission dated 6th March 2026 (RN: 25/08307/FULL).

  Awaiting decision Full applications 4 docs

• 93 - 94 Wilton Road London SW1V 1DW

  25/08307/FULL Submitted 13 Nov 2025 50 yards away

  Installation of replacement external plant, including supply and extract ducts and a condenser unit on rear first floor flat roof area.

  Granted Full applications 21 docs

• 26/07528/FULL Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

  Received 5 Nov, published by the council 6 Nov 2026 Full applications
• 26/05200/FULL Decided

  1 The Court House 165 Seymour Place London W1H 4PU

  Installation of waterproofing system to the existing lead flat roofs

  Received 3 Aug, published by the council 28 Aug 2026 Full applications
• 26/07521/FULL Awaiting decision

  Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

  Installation of one external condenser unit

  Received 4 Nov, published by the council 6 Nov 2026 Full applications
• 26/07508/FULL Awaiting decision

  Buckingham Palace The Mall London SW1A 1AA

  Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

  Received 4 Nov, published by the council 5 Nov 2026 Full applications
• 26/07472/FULL Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

  Received 3 Nov, published by the council 6 Nov 2026 Full applications