6 Suffolk Street London Data via plota.co.uk

26/03151/FULL - Full Planning Permission Application Approved
Extensions & alterations

Proposal

Replacement of gates. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
13 May 2026
✓
Validated
10 Aug 2026
✓
Approved
24 Sept 2026

Approved on 24 Sept 2026 · Delegated Decision · Last checked 24 Sept 2026

Documents 15

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 24 Sept 2026 View ↗ PDF DELEGATED REPORT Report · 24 Sept 2026 View ↗

Statements & assessments 2

PDF DESIGN AND ACCESS STATEMENT Background Papers · 3 Jun 2026 View ↗ PDF HERITAGE STATEMENT Background Papers · 3 Jun 2026 View ↗

Plans & drawings 2

PDF EXISTING AND PROPOSED PLANS Drawing · 10 Aug 2026 View ↗ PDF EXISTING AND PROPOSED PLANS Superseded document · 28 May 2026 View ↗

Consultation & comments 1

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 24 Aug 2026 View ↗

Other documents 8

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 24 Aug 2026 View ↗ PDF ECNSLT-INTERNAL CONSULTS Background Papers · 24 Aug 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 24 Aug 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 24 Aug 2026 View ↗ PDF 3RD INVALID LETTER Background Papers · 12 Aug 2026 View ↗ PDF 2ND INVALID LETTER Background Papers · 9 Jul 2026 View ↗ PDF 2ND INVALID LETTER Background Papers · 15 Jun 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 13 May 2026 View ↗

All documents on the council site ↗

Site constraints 13

Grade II* listed: 6, Suffolk Street Sw1
List entry 1264250 · The pin is inside its outline · 44 more listed buildings within 150 m (8 Grade I, 9 Grade II*, 27 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 44 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.
Protected view corridor: 2A.2 Parliament Hill summit to the Palace of Westminster
Inside the landmark viewing corridor of a protected vista. A building that rises above the corridor's threshold height should be refused. How high that is depends on where along the view the site is. Also in the corridor of 2B.1 Parliament Hill oak tree to the Palace of Westminster.
The London Plan (policy HC4) designates strategic views, and the Mayor's London View Management Framework (March 2012) gives 13 of them a protected vista toward St Paul's Cathedral, the Palace of Westminster or the Tower of London. A vista has a threshold height that rises or falls with the line of sight. In the landmark viewing corridor, a building above it would harm the view and should be refused. In the wider setting consultation area around the corridor, a building above it is referred for consultation and its effect on the view is judged. The threshold changes along each view and is set out in the framework. A revised framework is out for consultation until 4 December 2026 and is not yet in force.
London View Management Framework ↗
Archaeological priority area: City of Westminster APA 1.2
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 ↗
National infrastructure project 240 m away: Thames Tideway Tunnel
The site is 240 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, 88 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 ↗
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.
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
Registered park or garden 123 m away: Trafalgar Square; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 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.

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1Y 4HG
Received
13 May 2026
Validated
10 Aug 2026
Ward
St James's
Case officer
Show
Target decision
5 Oct 2026
Decision
Application Permitted
Decision date
24 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Just Plans

How this decision compares

Decided in 45 days from validation, 10 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

56%decided within 8 weeks
88%approved
1,688decided in the last year

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

Public comments

No public comments yet.

41 neighbours consulted · Last counted 24 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
1 - 4 Suffolk Street London SW1Y 4HG
Internal works comprising; first floor level creation of new door opening and erection of…
25/04083/LBC
2025
Basement And Ground Floor 21 Whitcomb Street London WC2H 7HA
Display of non illuminated hanging sign measuring 0.65m x 0.65m
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2025
The National Gallery Trafalgar Square London WC2N 5DN
Installation of new ventilation plant on the second floor roof of the Conservation Studio…
25/06611/FULL
2025
The National Gallery Trafalgar Square London WC2N 5DN
Installation of new ventilation plant on the second floor roof of the Conservation Studio…
25/06612/LBC
2025
18 - 21 Haymarket London SW1Y 4DQ
Display of 9x shop window vinyls each measuring 4.00m x 4.30m and 1x vinyl measuring 3.60…
25/06618/ADV
2025 Approved
The National Gallery Trafalgar Square London WC2N 5DN
Internal alterations to the Lecture Theatre and Green Room to support new AV/IT equipment…
25/03998/LBC
2025 Approved
The National Gallery Trafalgar Square London WC2N 5DN
Display of floor vinyl graphics for a temporary period from 09 June 2025 to 01 September…
25/03975/ADV
2025 Approved
18 - 21 Haymarket London SW1Y 4DQ
Display of nine vinyl images measuring 4000m x 2300m and one vinyl image measuring 3600 x…
25/02771/ADV
2025
Theatre Royal 8 Haymarket London SW1Y 4HT
To provide additional female WCs to the first floor of the Theatre by converting an exist…
25/02577/LBC
2025
The National Gallery Trafalgar Square London WC2N 5DN
Removal of the blockwork partitions to the south to open up the space; new wall to former…
25/01366/LBC
2024
The National Gallery Trafalgar Square London WC2N 5DN
Display of two internally illuminated digital screen totem signs each measuring 0.781m X…
24/08876/ADV
2024 Refused
15 Whitcomb Street London WC2H 7HA
Display of internal illuminated fascia sign measuring 0.5m X 3m.
24/02936/ADV
2024 Approved
17 Whitcomb Street London WC2H 7HA
Display of externally illuminated projecting sign measuring 500 mm x 400 mm.
24/02773/ADV
2024 Approved
1 - 4 Suffolk Street London SW1Y 4HG
Installation of secondary glazing to the front, side and courtyard elevations.
24/02090/LBC
2024 Approved
17 Whitcomb Street London WC2H 7HA
Display of a non-illuminated projecting sign measuring 50cm x 50cm and a sticker on the i…
24/00201/ADV
2023
The National Gallery Trafalgar Square London WC2N 5DN
Refurbishment and improvements to the Lecture Theatre and Green Room in the basement of t…
23/08736/LBC
2022 Approved
15 Suffolk Street London SW1Y 4HG
Removal of Condition 2 of listed building consent dated 28 September 2022 (RN: 22/03891/L…
22/08595/LBC
2022 Approved
15 Suffolk Street London SW1Y 4HG
Removal of Condition 7 of planning permission dated 28 September 2022 (RN: 22/03890/FULL)…
22/08529/FULL
2022 Approved
Basement And Ground Floor 11-12 Haymarket London SW1Y 4BP
Installation of replacement ground floor windows (sliding openable windows on the Haymark…
22/08304/FULL
2022 Approved
11-12 Haymarket London SW1Y 4BP
Display of two externally illuminated fascia signs measuring 2.43m x 0.15m, two externall…
22/07044/ADV
2019 Approved
The National Gallery Trafalgar Square London WC2N 5DN
External alterations to roof, including the installation of two new rooflights.
19/03215/FULL
2019 Approved
The National Gallery Trafalgar Square London WC2N 5DN
External alterations to roof, including the installation of two new rooflights. Internal…
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2019 Approved
Kinnaird House 1 Pall Mall East London SW1Y 5BA
Use of building as hotel (Class C1) with associated ancillary facilities and external alt…
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11-12 Haymarket London SW1Y 4BP
Installation of an equipment cabinet measuring 600 x 480 x 700mm and ancillary developmen…
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The National Gallery Trafalgar Square London WC2N 5DN
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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
Source: MHCLG planning statistics · See full council rankings