21 St James's Square London SW1Y 4JZ Data via plota.co.uk

25/05146/AD7 - Advert Application-Regulat. 7 Area (AD7) Approved

Proposal

Display for a temporary period of six months of a non-illuminated 'to let' board attached to the scaffold in front of the building at street level and measuring 0.6m x 0.45m. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Jul 2025
✓
Approved
29 Aug 2025

Approved on 29 Aug 2025 · Delegated Decision · Last checked 30 Oct 2026

Documents 7

Decision & officer reports 2

PDF GRANT OF ADVERT 7 CONSENT [PE] Decision Notice · 29 Aug 2025 View ↗ PDF DELEGATED REPORT Report · 29 Aug 2025 View ↗

Plans & drawings 1

IMG 20 LOCATION Drawing · 24 Jul 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 24 Jul 2025 View ↗

Other documents 3

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 27 Aug 2025 View ↗ PDF RECEIPT OF APPLICATION Other · 30 Jul 2025 View ↗ IMG ON RAILINGS 20 Background Papers · 24 Jul 2025 View ↗

All documents on the council site ↗

Site constraints 14

Grade I listed: 20 and 21, St James's Square Sw1
List entry 1264890 · The pin is inside its outline · 34 more listed buildings within 150 m (5 Grade I, 8 Grade II*, 21 Grade II)
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 the other 34 with distances
Historic England ↗
St James's 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.
Council document ↗
2 Article 4 directions
Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.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 2.5
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.
Council record ↗
Town centre: West End
A designated centre in the London Plan.
Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.
National infrastructure project 352 m away: Thames Tideway Tunnel
The site is 352 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 155 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Registered park or garden 29 m away: St James's Square
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
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.
Also on the record
Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Priority habitat 31 m away: Deciduous woodland; Tree preservation order 29 m away: W22_A1.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 1 November 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Building

Floor area7,895 m² (84,981 sq ft)
Energy ratingB (asset rating 34)
UseB1 Offices and Workshop businesses
HeatingAir Conditioning

From the energy performance certificate lodged in May 2018, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Westminster
Application type
Advert Application-Regulat. 7 Area (AD7)
Postcode
SW1Y 4JZ
Received
24 Jul 2025
Validated
24 Jul 2025
Ward
St James's
Case officer
Show
Target decision
18 Sept 2025
Decision
Application Permitted
Decision date
29 Aug 2025
Decision level
Delegated Decision
Applicant
Show
Freehold owner
Show

How this decision compares

Decided in 36 days from validation, about the council's usual 38 days. Approved, as 83% of advertisement consent here are.

70%decided within 8 weeks
83%approved
1,025decided in the last year

Plota live figures for advertisement consent decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 30 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14202010
Planning Portal ref
PP-14202010
Env. assessment
No

Historical activity at this location

36 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Internal alterations at third and fourth floor levels comprising installation of glazed p…
25/04468/LBC
2024 Approved
Removal of internal partitions on third and fourth floors in association with reconfigura…
24/02439/LBC
2023 Approved
Removal of internal partitions on 2F-5F in association with reconfiguration of office lay…
23/03853/LBC
2022 Approved
Installation of small 30cm antenna to provide the site with internet connectivity.
22/01104/LBC
2022 Approved
Replacement of four existing vault doors with new doors within front lightwell.
22/03538/FULL
2022
Replacement of four wooden vault doors.
22/01893/LBC
2019 Approved
Installation of new internal staircase between lower ground and ground floors.
19/05506/LBC
2019 Approved
Internal office fit out to ground and lower ground floors.
19/05485/LBC
2019 Approved
Internal alterations including installation of a new staircase: removal and addition of p…
19/04908/LBC
2017 Approved
Installation of replacement CCTV fixture and replacement of windows at third and fourth f…
17/08384/FULL
2017 Approved
Removal of redundant CCTV fixture from the St James's Square elevation and installation o…
17/08385/LBC
Within ~100m

Nearby activity

2025
83 Pall Mall London SW1Y 5ES
Internal refurbishment and office fit-out of the fifth floor level.
25/06807/LBC
2025 Refused
89 - 91 Pall Mall London SW1Y 5HS
Alterations to six windows to the front ground floor elevation.
25/04059/LBC
2025 Approved
20 St James's Square London SW1Y 4JH
Replacement of damask fabric in first and second drawing rooms at the first floor and ass…
25/04821/LBC
2025 Approved
31 King Street Covent Garden London WC2E 8JD
Display of non-illuminated vinyls to windows.
25/03815/LBC
2025 Approved
Almack House 28 King Street St James's London SW1Y 6QW
Installation of new condenser units to roof of building.
25/01797/FULL
2025 Refused
26 St James's Square London SW1Y 4JH
Display of two non illuminated brass name plates to either side of the entrance doors, ea…
25/03761/ADV
2025 Approved
27 Pall Mall London SW1Y 5LP
Installation of a fire curtain at ground floor level; replacement of a previously approve…
25/03164/LBC
2025
Almack House 28 King Street St James's London SW1Y 6QW
Installation of new condenser units to roof of building.
25/03418/FULL
2025
24 St James's Square London SW1Y 4JH
Display of one non illuminated 3D lettering signage measuring 0.42m x 1.4m. Linked with 2…
25/01455/ADV
2025
24 St James's Square London SW1Y 4JH
Installation of 3D lettering sign on the central glass transom of the ground floor facade…
25/01453/LBC
2025
89 - 91 Pall Mall London SW1Y 5HS
Internal and external alterations.
25/01371/LBC
2025
83 Pall Mall London SW1Y 5ES
External and internal alterations to the fifth floor of 83 Pall Mall, comprising the inst…
25/01340/LBC
2025
83 Pall Mall London SW1Y 5ES
External and internal alterations to the fifth floor of 83 Pall Mall, comprising the inst…
25/01339/FULL
2025
Sixth Floor 83 Pall Mall London SW1Y 5ES
Internal alterations including the removal and addition of partitions at 6th floor level.
25/01263/LBC
2025
89 - 91 Pall Mall London SW1Y 5HS
Removal of existing exterior lighting and installation of new exterior LED lighting to th…
25/00889/LBC
2025
89 - 91 Pall Mall London SW1Y 5HS
Removal of existing exterior lighting and installation of new exterior LED lighting to th…
25/00888/FULL
2024
36 - 39 Pall Mall London SW1Y 5JN
Installation of a temporary wheelchair access ramp at the main entrance on St James's Squ…
24/08336/FULL
2024
36 - 39 Pall Mall London SW1Y 5JN
Installation of a permanent wheelchair access ramp to replace a portion of existing steps…
24/08335/FULL
2024
Almack House 28 King Street St James's London SW1Y 6QW
Installation of plant equipment within existing lightwell along the western building boun…
24/07404/FULL
2024
89 - 91 Pall Mall London SW1Y 5HS
Repairs and facade cleaning to front elevation facing Pall Mall.
24/07311/LBC
2019 Approved
26 St James's Square London SW1Y 4JH
External alterations to the St James's Square and Pall Mall facades, including alteration…
19/06149/FULL
2019 Withdrawn
36 - 39 Pall Mall London SW1Y 5JN
Replacement of 3 existing antennas, 1 dish and 1 cabinet with 6 new antennas, 1 dish and…
19/05082/FULL
2019 Approved
St James's Square London
Display of a non- illuminated sign measuring 1.6m x 0.8m on a Royal Mail post box located…
19/06033/ADV
2019 Approved
19 St James's Square London SW1Y 4JE
Alterations to the front entrance including replacement door, paving and column cladding…
19/04025/FULL
2018 Approved
20 St James's Square London SW1Y 4JH
Use from office (B1a) to a single, residential family dwelling (C3) including external wo…
18/04767/FULL
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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
Source: MHCLG planning statistics · See full council rankings

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.

Freehold owner and leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.