12 Manchester Square London W1U 3PP

1. 7 Nov 2025

   Received by Westminster

2. 20 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 January 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 66 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 advertisement consent applications in a median of 52 days. More in our guide to how long planning decisions take.

Advertisement consent is judged on two things only: amenity and public safety, not competition or other planning considerations. More in our guide to planning application types.

• 13 Manchester Square London W1U 3PP

  26/04759/LBC Submitted 16 Jul 2026 50 yards away

  90% historically approved · decision due ~10 Sep

  Removal and replacement of the existing front entrance door with a like for like door fitted with the existing ironmongery.

  Awaiting decision Heritage and listed buildings

• 11 Seymour Mews London W1H 6BE

  06/00799/CAC Submitted 2 Feb 2006 50 yards away

  Substantial demolition behind retained facades.

  Granted Heritage and listed buildings Demolition 3 docs

• 11 Seymour Mews London W1H 6BE

  06/00798/FULL Submitted 2 Feb 2006 50 yards away

  i) External alterations in connection with use of No. 11 as a 2x bedroom house.ii) Demolition behind retained facade of Nos. 15 and 16 to be used for office purposes. (Part of a use swap with 18 and 20 Seymour Place)

  Granted Full applications Demolition 17 docs

• 6 Seymour Mews London W1H 6BE

  25/04662/ADFULL Submitted 7 Jul 2025 50 yards away

  Details of Code of Construction Practice pursuant to Condition 3 of planning permission dated 05 September 2024 (RN24/02777/FULL)

  Granted Full applications 9 docs

• 11 Seymour Mews London W1H 6BE

  05/09325/CAC Submitted 15 Nov 2005 50 yards away

  Demolition of internal partitions, internal staircases in No. 11 and internal party wall of Nos. 15 and 16. Removal of internal fabric to create large open plan area for Nos. 15-16. Refurbishment of roof structure to Nos. 15 and 16.

  Withdrawn Heritage and listed buildings Demolition 4 docs

• 11 Seymour Mews London W1H 6BE

  05/08944/FULL Submitted 2 Nov 2005 50 yards away

  External alterations to 11, 15 and 16 Seymour Mews to provide residential (1x2 bed maisonette) and office (Class B1) accommodation.

  Withdrawn Full applications 15 docs

• 26/06444/ADV Awaiting decision

  107 Long Acre London WC2E 9NT

  Display of two internally illuminated (letters only) fascia signs each measuring 0.55m x 1.21m on the Long Acre and Neal Street elevations.

  21 Sep 2026 Advertising
• 26/06296/ADV Awaiting decision

  15 Warwick Way London SW1V 1QT

  Display of Individual soft halo externally illuminated individual brass letters on fascia. Display of externally illuminated hanging sign measuring 40mm x 40mm, including Gilded vinyl decal.

  Received 15 Sep, published by the council 17 Sep 2026 Advertising
• 26/06070/ADV Granted

  36 Shepherd Market London W1J 7QR

  Display of non-illuminated screen-printed signage to the fabric and valance of retractable canvas awning.

  Received 7 Sep, published by the council 11 Sep 2026 Advertising
• 26/06304/ADV Awaiting decision

  10 Piccadilly London W1J 0DD

  Display of an externally illuminated advertising area measuring 7.4m x 10.1m and a 1:1 printed image of the building for a temporary period of 15 months.

  Received 15 Sep, published by the council 22 Sep 2026 Advertising
• 26/05573/ADV Decided

  1 The Piazza Covent Garden London WC2E 8HB

  Display of two platforms measuring 13.6m x 3.6m x 2.263m and 14.61m x 3.6m x 2.263m each featuring three internally illuminated sculptures for a temporary period from 16 October 2026 to 6 January 2027.

  Received 17 Aug, published by the council 22 Aug 2026 Advertising