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Palace Of Westminster St Margaret Street London SW1P 3JX

26/03264/CLLBCert of Law - Prposed works to LBApproved
Lawful development certificate

Approved on 25 June 2026

Site boundary (council red line)

Proposal

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.

Received
14 May 2026
Ward
St James's
  1. Received14 May
  2. Validated14 May
  3. Consult.
  4. Target25 Jun
  5. Decided25 Jun

Decided in 42 days

About this application

This is a planning application at Palace Of Westminster St Margaret Street London SW1P 3JX. Westminster has handled 27,078 applications of this type. This one was decided in 42 days, 7 days quicker than Westminster's typical decision time. The site is in the Westminster Abbey and Parliament Square conservation area, with 8 listed buildings nearby. There have been 37 other applications at this address. In the past year there have been 478 applications across St James's. We hold 1,247 applications in total for the SW1P postcode area.

Application details

Postcode
SW1P 3JX
Application type
Cert of Law - Prposed works to LB
Scale / size
Small

Planning application dates

Date validated
14 May 2026
Target decision date
25 June 2026

Applicant and agent

Agent address
6 Brewhouse Yard Clerkenwell London EC1V 4LJ

Planning decision

Statutory period
42 days

Additional information

Comments
0
Documents
3

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Also checked, none recorded (18)

flood storage areas, green belt, scheduled monuments, World Heritage Site buffer zones, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Planning history at this site

20 other applications at this property, newest first.

  1. 2025
    10 Jun

    Display of 3 lamp double sided digitally printed PVC column banners along St Margaret Street each measuring…

    WithdrawnAdvertisement consent25/03964/ADV
  2. 2025
    16 May

    Structural monitoring survey to inform the Restoration and Renewal Programme for the Palace of Westminster.

    ApprovedListed building consent25/03344/LBC
  3. 2025
    16 Jan

    Proposed ceiling and floor void surveys to inform the Restoration and Renewal Programme for the Palace of…

    ApprovedAll Other25/00274/CLLB
  4. 2024
    31 May

    Ground investigation survey comprising boreholes on the River Terrace to inform the restoration and renewal…

    PendingFull Planning Permission Application24/03619/FULL
  5. 2024
    31 May

    Ground investigation survey comprising boreholes on the River Terrace to inform the restoration and renewal…

    PendingListed building consent24/03620/LBC
  6. 2024
    14 May

    Archaeological Evaluation, comprising trial pits and geoarchaeological boreholes, to inform the Restoration…

    ApprovedFull Planning Permission Application24/03170/FULL

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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