Palace Of Westminster St Margaret Street London SW1P 3JX

This site has had 3 applications since 2021: 2 approved, 0 refused.

• 22/03502/FULL Granted

  Palace Of Westminster St Margaret Street London SW1P 3JX

  Ground investigations survey including 18 boreholes

  Decided 27 Jul 2022 Full applications
• 21/05872/ADLBC Granted

  Palace Of Westminster St Margaret Street London SW1P 3JX

  Details of written scheme of investigation for a programme of archaeological work pursuant to condition 2 of listed building consent dated 13th August 2020 (RN 20/03208/LBC)

  Decided 31 Aug 2022 Conditions

1. 14 May 2026

   Received by Westminster

2. 21 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 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 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's median decision took 66 days. More in our guide to how long planning decisions take.

The published feed does not state which type of application this is; the register entry on Westminster's portal will say. Our guide explains the common types.

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

  26/03092/LBC Submitted 11 May 2026 50 yards away

  90% historically approved · decision due ~6 Jul

  Alterations to the underground car park fire escape route, including installation of an external stair, glazed safety screen and associated works. (Linked with 26/03091/FULL)

  Awaiting decision Heritage and listed buildings Windows or glazing 3 docs

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

  26/03091/FULL Submitted 11 May 2026 50 yards away

  87% historically approved · decision due ~6 Jul

  Alterations to the underground car park fire escape route, including installation of an external stair, glazed safety screen and associated works. (Linked with 26/03092/LBC)

  Awaiting decision Full applications Windows or glazing 5 docs

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

  25/08863/LBC Submitted 5 Dec 2025 50 yards away

  Installation of one overhead door automation system at principal floor level

  Granted Heritage and listed buildings 5 docs

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

  26/04239/LBC Submitted 26 Jun 2026 50 yards away

  90% historically approved · decision due ~31 Aug

  Alterations to roof level structures including raising of parapet walls and associated works

  Awaiting decision Heritage and listed buildings 5 docs

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

  25/07770/LBC Submitted 27 Oct 2025 50 yards away

  Alterations and refurbishment at roof level.

  Granted Heritage and listed buildings 7 docs

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

  26/04240/LBC Submitted 26 Jun 2026 50 yards away

  90% historically approved · decision due ~31 Aug

  Installation of an enclosure at roof level to house existing building services and associated works

  Awaiting decision Heritage and listed buildings 5 docs