House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA Data via plota.co.uk
26/03091/FULL - Full Planning Permission Application
Approved
Proposal
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) Data via plota.co.uk
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View original council record ↗Last checked
Application progress
✓
Received
11 May 2026
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Consultation
14 May 2026
✓
Approved
21 Jul 2026
Approved on 21 Jul 2026 · Delegated Decision · Last checked 22 Jul 2026
Documents 6
Decision & officer reports 1
Consultation & comments 1
Associated applications 4
Site constraints 11
Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
World heritage site: Palace of Westminster, Westminster Abbey and St. Margaret's Church
Nationally designated heritage. Its significance and setting carry great weight.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Westminster Abbey And Parliament Square conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area: City of Westminster APA 1.1
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Westminster AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
6 listed buildings within 150 m
Nearest: Houses of Parliament and The Palace of Westminster, Grade I, 41 m away · 3 Grade I, 3 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 6 with distances
- 41 mHouses of Parliament and The Palace of WestminsterGrade I
- 83 mStatue of Oliver Cromwell in Front of Westminster HallGrade II
- 99 mStatue of Richard IGrade II
- 120 m14 Lampstandards Flanking Carriage Drive in New Palace Yard, Houses of ParliamentGrade II
- 121 mGates, Railings, Gate Piers to New Palace Yard, Houses of ParliamentGrade I
- 143 mChurch of St Margaret, WestminsterGrade I
Also on the record
Scheduled monument 169 m away: The Jewel Tower; Inside the City of Westminster built-up area.
Not affected
Not green belt
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1A 0AA
- Received
- 11 May 2026
- Validated
- 11 May 2026
- Ward
- St James's
- Case officer
- Show
- Target decision
- 6 Jul 2026
- Decision
- Application Permitted
- Decision date
- 21 Jul 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- House of Commons
How this decision compares
Decided in 71 days from validation, 16 days slower than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.
This one71d
Council55d
UK55d
56%decided within 8 weeks
88%approved
1,672decided in the last year
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Consultation & key dates
- Alt. reference
- PP-14880083
- Site or press notice
- 14 May 2026
- Env. assessment
- No
Historical activity at this location
50 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Alterations and refurbishment at roof level.
2025
Installation of glazing and railing to Colonnade Apertures.
2025
Approved
1 x Indian bean tree (T3606): Reduce laterally over exit road by 2m and crown lift to cle…
2025
Installation of overhead door automation assets.
2025
Installation of door access controls and door automation devices.
2025
Approved
Installation of CCTV cameras, door access controls and door automation devices
2025
Approved
1 x Mulberry: Prune back fractured stub on north-west side to just above the point of fra…
2025
Installation of electrical equipment Victoria Tower.
2025
Variation of condition 3 of listed building consent dated 11 July 2022 13 May 2022 (RN: 2…
2025
Siting of a fence above the River wall in Black Rod Gardens for a temporary period of 10…
2025
Installation of cabin in Black Rod's garden and altered access through Victoria Tower Gar…
2025
Installation of electrical equipment
2024
Ground investigation works
2024
Installation of waterproofing membrane and sump pump and associated pipework.
2024
Internal alterations including installation of electrical equipment
2024
Refurbishment of 3 lifts.
2024
Approved
Refurbishment / replacement of lifts.
2024
Installation of a door access control.
2024
Approved
Kitchen refurbishment
2024
Siting of boundary fence for a temporary period of 10 years.
2019
Approved
Alterations to New Palace Yard, changes to access and other arrangements and changes to r…
2019
Approved
Installation of a new floor-spring with self-closing device.
2019
Approved
Request for a scoping opinion under Regulation 15 of The Town and Country Planning (Envir…
2018
Approved
Upgrading of doors in public area.
2018
Approved
Fitting-out works for the provision of office space and welfare facilities within the for…
Within ~100m
Nearby activity
2025
Palace Of Westminster St Margaret Street London SW1P 3JX
Structural monitoring survey to inform the Restoration and Renewal Programme for the Pala…
2024
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Archaeological Evaluation, comprising trial pits and geoarchaeological boreholes, to info…
2023
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Ground investigations survey comprising 3no. boreholes at the Palace of Westminster to in…
2022
Approved
New Palace Yard London
2 x Indian bean trees (T7, T8 New Palace Yard): Prune roots with diameters of less than 2…
2022
Approved
New Palace Yard London
15 x pleached lime trees located on south western edge of the central lawn area: sever ro…
2022
Approved
Open Space Parliament Square London SW1A 0AA
Use of an area of land to the rear of Westminster Station Underground entrance/exit on th…
2022
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Ground investigations survey including 18 boreholes
2021
Approved
Open Space Parliament Square London SW1A 0AA
Use of an area of land to the rear of Westminster Station Underground entrance/exit on th…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2020
Approved
Open Space Parliament Square London SW1A 0AA
London Plane (T1)- Crown lift away from traffic lights and statue (by 2m) London Plane (T…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2016
Approved
House Of Commons Palace Of Westminster Parliament Square London SW1A 0RS
External alterations to visitor waiting area including the removal of flat glass roof fro…
2016
Approved
House Of Commons Palace Of Westminster Parliament Square London SW1A 0RS
External alterations to visitor waiting area including the removal of flat glass roof fro…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2020
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Painting of railings and metal work throughout the Palace of Westminster site.
2020
Withdrawn
Palace Of Westminster St Margaret Street London SW1P 3JX
The painting of railings and metalwork throughout the Palace of Westminster.
2019
Withdrawn
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and access control devices to existing doors in various loca…
2019
Approved
Palace Of Westminster St Margaret Street London SW1P 3JX
Installation of CCTV cameras and associated cabling within the Palace of Westminster - Ph…
2018
Approved
House Of Lords Palace Of Westminster Parliament Square London SW1A 0PW
Creation of an extract plenum above the ceiling of the chamber of the House of Lords and…
2017
Approved
Open Space Parliament Square London SW1A 0AA
Erection of a A Women's Suffrage memorial in the form of a bronze statue of non-militant…
2016
Approved
House Of Commons Palace Of Westminster Parliament Square London SW1A 0RS
Alterations to Cromwell Green and Speakers Green railings.
2016
Approved
House Of Commons Palace Of Westminster Parliament Square London SW1A 0RS
Alterations to Cromwell Green and Speakers Green railings.
2016
Approved
House Of Commons Palace Of Westminster Parliament Square London SW1A 0RS
Alterations associated with fire safety improvement works
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application.
View full council performance
Westminster decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026
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House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
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