26 Seymour Street London W1H 7JA

1. 17 Aug 2026

   Received by Westminster

2. 22 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 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 61 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 heritage and listed building applications in a median of 87 days. More in our guide to how long planning decisions take.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• 21 New Quebec Street London W1H 7SA

  26/04622/FULL Submitted 10 Jul 2026 24m away

  87% historically approved · decision due ~4 Sep

  Formation of new openings in the structural party walls between Nos. 21 and 22 at basement and ground floor levels to create a continuous retail unit. New dumwaiter to 22. Reinstatement of historic nibs and downstands. No. 21, Replacement of stair balustrades. Plastering and decoration of exposed brickwork in 22 basement. Refurbishment of existing timber floor boards. No. 21 and 22: Installation of new more efficient mechanical and electrical services. Removal of non-original partitions and finishes. Repair and redecoration of existing suspended ceilings at ground floor level. Refurbishment of existing timber sash and casement windows with addition of internal security bars and internal shopfront security barriers. Works to vaults to allow dry storage. Installation of security and fire safety systems to allow safe operation across all three properties. [Linked to 26/04623/LBC] [SITE INCLUDES 20 AND 22 NEW QUEBEC STREET]

  Awaiting decision Full applications Windows or glazing 53 docs

• 34 Seymour Street London W1H 7JE

  20/04235/AD7 Submitted 7 Jul 2020 29m away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the railings at street level and measuring 0.9m x 0.6m.

  Granted Advertising 7 docs

• 34 Seymour Street London W1H 7JE

  20/00212/AD7 Submitted 14 Jan 2020 29m away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the railings at street level and measuring 0.9m x 0.6m.

  Granted Advertising 6 docs

• 34 Seymour Street London W1H 7JE

  19/05347/AD7 Submitted 9 Jul 2019 29m away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the railings at street level and measuring 0.9m x 0.6m.

  Granted Advertising 8 docs

• 34 Seymour Street London W1H 7JE

  11/08633/ADLBC Submitted 9 Sep 2011 29m away

  Approval of details pursuant to Condition 3 of planning permission dated 20 June 2011 (RN:11/05262) namely details of the proposed chimney pieces.

  Granted Conditions 5 docs

• 34 Seymour Street London W1H 7JE

  08/06226/AD7 Submitted 17 Jul 2008 29m away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the railings at street level and measuring 0.45m x 0.6m.

  Granted Advertising 3 docs

• 26/06025/LBC Awaiting decision

  House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

  Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06024/FULL)

  3 Sep 2026 Heritage and listed buildings
• 26/05971/LBC Awaiting decision

  House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

  Automation of door at principal floor level.

  1 Sep 2026 Heritage and listed buildings
• 26/05962/LBC Awaiting decision

  Royal Albert Hall Kensington Gore London SW7 2AP

  Variation of condition 2 of listed building consent dated 26 March 2024 (RN: 24/00820/LBC) for the: Erect temporary access scaffolding platform at high level in the auditorium to inspect the condition of the plaster ceilings and main cornices. NAMELY, to allow the gantry to remain in place until December 2028.

  1 Sep 2026 Heritage and listed buildings
• 26/05970/LBC Awaiting decision

  Norman Shaw Building South Victoria Embankment London SW1A 2HZ

  Replacement and installation of 16 electronic access control systems to Norman Shaw South

  1 Sep 2026 Heritage and listed buildings
• 26/05943/LBC Awaiting decision

  1 Barton Street London SW1P 3NG

  Use of the building as F1(a) Education, along with associated internal and external alterations. (Linked with 26/05942/FULL)

  1 Sep 2026 Heritage and listed buildings