Palace Of Westminster St Margaret Street London SW1P 3JX

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

• 26/03264/CLLB Awaiting decision

  Palace Of Westminster St Margaret Street London SW1P 3JX

  Certificate of Lawfulness for proposed internal and external wall surveys and staircase surveys to inform the Restoration and Renewal Programme for the Palace of Westminster.

  Submitted 14 May 2026
• 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. 26 May 2022

   Received by Westminster

2. 27 Jul 2022

   Decision issued: Application Permitted

3. 29 Jul 2026

   Added to PlanIndex

Westminster granted permission on 27 July 2022, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

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

  25/07570/LBC Submitted 20 Oct 2025 50 yards away

  Installation of glazing and railing to Colonnade Apertures.

  Granted Heritage and listed buildings Windows or glazing 4 docs

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

  25/07503/LBC Submitted 16 Oct 2025 50 yards away

  Installation of overhead door automation assets.

  Granted Heritage and listed buildings 4 docs

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

  26/02721/LBC Submitted 23 Apr 2026 50 yards away

  90% historically approved · decision due ~18 Jun

  Erection of a low-level bund wall to the Lords roof at State Officers Court. (Linked with 26/02720/FULL)

  Awaiting decision Heritage and listed buildings 1 doc

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

  26/02720/FULL Submitted 23 Apr 2026 50 yards away

  87% historically approved · decision due ~18 Jun

  Erection of a low-level bund wall to the Lords roof at State Officers Court. (Linked with 26/02721/LBC)

  Awaiting decision Full applications 2 docs

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

  25/08548/LBC Submitted 21 Nov 2025 50 yards away

  Relocation of entrance and internal amendments to Woolsack Bar.

  Granted Heritage and listed buildings 6 docs

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

  26/03713/TCA Submitted 5 Jun 2026 50 yards away

  Targeted root pruning to up to 10 no. pollarded lime trees on the green at New Palace Yard, and 1 no. Indian bean tree to the north of the main vehicular entrance from Parliament Square for installation of infrastructure. All roots pruned to be 25mm or less in diameter.

  Granted Trees 1 doc

• 26/06331/FULL Awaiting decision

  31G Nottingham Place London W1U 5LP

  Installation of a condenser within acoustic enclosure and metal railing on the rear flat roof at third-floor level.

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06328/FULL Awaiting decision

  Athena Court 2 Finchley Road London NW8 6DP

  Installation of a multifunctional communication Hub including defibrillator outside Athena Court. (Linked with 26/06329/ADV)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06325/FULL Awaiting decision

  29 Norfolk Road London NW8 6AU

  Hard and soft landscaping works; amendment to railings style to rear garden structures (outbuilding and pergola); external lighting; boundary treatment; refuse storage; and photovoltaic panels. (Linked with 26/06326/LBC)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06340/FULL Awaiting decision

  141 Harley Street London W1G 6BQ

  Variation of Condition 1 of planning permission dated 22 December 2026 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications
• 26/06341/FULL Awaiting decision

  141 Harley Street London W1G 6BQ

  Installation of new sesame lift into existing front entrance steps. (Linked with 26/06342/LBC)

  Received 16 Sep, published by the council 23 Sep 2026 Full applications