6 - 9 Carlton House Terrace London SW1Y 5AG Data via plota.co.uk

26/05675/LBC - Listed Building Consent Application Approved
Extensions & alterationsListed buildings

Proposal

Replacement of existing modern glazed double door in existing opening between Marble Hall in No. 6 and corridor in No. 7 at ground floor level with glazed fire double doors and installatoin of fire rated secondary glazing to inside of fanlight above entrance door to Executive Directors flat at second floor level in No. 7. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
19 Aug 2026
✓
Approved
2 Oct 2026

Approved on 2 Oct 2026 · Delegated Decision · Last checked 3 Oct 2026

Documents 30

Decision & officer reports 2

PDF DELEGATED REPORT Report · 2 Oct 2026 View ↗ PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 2 Oct 2026 View ↗

Statements & assessments 2

PDF HERITAGE STATEMENT Heritage Statement · 19 Aug 2026 View ↗ PDF DESIGN & ACCESS STATEMENT Design and Access Statement · 19 Aug 2026 View ↗

Plans & drawings 19

PDF LOCATION PLAN Location Plan · 19 Aug 2026 View ↗ PDF EXISTING MARBLE HALL ELEVATION & SECTION Drawing · 19 Aug 2026 View ↗ PDF EXISTING DOOR L2 EXTERIOR ELEVATION Drawing · 19 Aug 2026 View ↗ PDF EXISTING DOOR L2 FLOOR PLAN & SECTION Drawing · 19 Aug 2026 View ↗ PDF EXISTING FANLIGHT L2 PLAN & SECTION Drawing · 19 Aug 2026 View ↗ PDF EXISTING DOOR L2 INTERNAL ELEVATION Drawing · 19 Aug 2026 View ↗ PDF EXISTING CORRIDOR THRESHOLD ELEVATION & SECTION Drawing · 19 Aug 2026 View ↗ PDF EXISTING MARBLE HALL DOOR FLOOR PLAN & DETAIL PLAN Drawing · 19 Aug 2026 View ↗ PDF EXISTING GROUND FLOOR PLAN Drawing · 19 Aug 2026 View ↗ PDF EXISTING SECOND FLOOR PLAN Drawing · 19 Aug 2026 View ↗ PDF PROPOSED FANLIGHT L2 PLAN & SECTION Drawing · 19 Aug 2026 View ↗ PDF PROPOSED DOOR L2 INTERNAL ELEVATION Drawing · 19 Aug 2026 View ↗ PDF PROPOSED DOOR L2 EXTERIOR ELEVATION Drawing · 19 Aug 2026 View ↗ PDF PROPOSED DOOR L2 FLOOR PLAN & SECTION Drawing · 19 Aug 2026 View ↗ PDF PROPOSED SECOND FLOOR PLAN Drawing · 19 Aug 2026 View ↗ PDF PROPOSED GROUND FLOOR PLAN Drawing · 19 Aug 2026 View ↗ PDF PROPOSED MARBLE HALL DOOR FLOOR PLAN & DETAIL PLAN Drawing · 19 Aug 2026 View ↗ PDF PROPOSED MARBLE HALL ELEVATION & SECTION Drawing · 19 Aug 2026 View ↗ PDF PROPOSED CORRIDOR THRESHOLD ELEVATION & SECTION Drawing · 19 Aug 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 19 Aug 2026 View ↗

Consultation & comments 2

PDF HISTORIC ENGLAND COMMENT Consultee Comment · 14 Sept 2026 View ↗ PDF CNSLT-CONSULTEE CLOUD STD Background Papers · 2 Sept 2026 View ↗

Other documents 4

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 2 Sept 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 2 Sept 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 26 Aug 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 19 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 13

Grade I listed: Numbers 1-9 Including Railings to North and East
List entry 1209780 · The pin is inside its outline · 28 more listed buildings within 150 m (6 Grade I, 5 Grade II*, 17 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 28 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: 4A.2 Primrose 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.
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 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 ↗
National infrastructure project 112 m away: Thames Tideway Tunnel
The site is 112 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, 39 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 34 m away: St James's Park
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; Metropolitan Open Land 59 m away.
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
Listed Building Consent Application
Postcode
SW1Y 5AG
Received
19 Aug 2026
Validated
19 Aug 2026
Ward
St James's
Case officer
Show
Target decision
14 Oct 2026
Decision
Application Permitted
Decision date
2 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Philip Meadowcroft Architects

How this decision compares

Decided in 44 days from validation, 11 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.

Last counted 3 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15148349
Planning Portal ref
PP-15148349
Comments by
30 Sept 2026
Site or press notice
9 Sept 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2024
Alteration to the existing male and female washrooms at second floor level to include a w…
24/08582/LBC
Within ~100m

Nearby activity

2025 Approved
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T414 - Platanus x hispanica: reduce back from building and balcony to give 2.5m clearance.
25/07296/TCA
2025
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T404 - Platanus x hispanica (London Plane) Lift low canopy - Specified extent to 5.2 m ov…
25/06858/TCA
2025
1 Carlton House Terrace London SW1Y 5AF
External alterations and internal alterations, including re-location of a bin store and i…
25/04929/LBC
2025 Approved
Flat At 2 Carlton House Terrace London SW1Y 5AF
Internal alterations including core drill into the lightwell and fibre/cabling works. New…
25/04384/CLLB
2025 Approved
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T408 - Platanus x hispanica (London Plane): Remove 2 x Massaria infected branches, Branch…
25/03665/TCA
2025 Approved
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T410 - Platanus x hispanica (London plane): reduce the primary limb at approx. 19 m to th…
25/03041/TCA
2025
1 Carlton House Terrace London SW1Y 5AF
Installation of bin lift (Linked with 25/00124/LBC)
25/00123/FULL
2025
1 Carlton House Terrace London SW1Y 5AF
Installation of bin lift (Linked with 25/00123/FULL)
25/00124/LBC
2024
4 Carlton Gardens London SW1Y 5AA
Installation of new condenser unit to roof of building (replacement of existing units)
24/08779/FULL
2024 Approved
10 Carlton House Terrace London SW1Y 5AH
Replacement of lightwell lights and electrical accessories (security cameras, emergency e…
24/02485/LBC
2024
5 - 7 Carlton Gardens London SW1Y 5AD
Erection of four antennae on a single wall bracket at roof level.
24/03648/FULL
2023 Approved
1 - 9 Carlton House Terrace London
External works to the podium of 1-9 Carlton House Terrace comprising the replacement of t…
23/04688/LBC
2023 Approved
6-9 Carlton House Terrace London SW1Y 5AG
Upgrade of existing AV installations, the removal and replacement of an AV cabinet, the r…
23/07086/LBC
2023 Approved
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T401 - Platanus x hispanica (London Plane): prune to clear lamp column by 1m. Lift to 5.5…
23/06970/TCA
2023 Approved
3 Carlton Gardens London SW1Y 5AA
1 x Lime tree (T1): Remove epicormic at base. Lightly reduce one lowest lateral to South…
23/04259/TPO
2022 Approved
Waterloo Gardens West Of Waterloo Place Carlton House Terrace London
T414 - Platanus x hispanica (London Plane): reduce extended heavy limb to south, southeas…
22/06670/TCA
2022 Approved
9 Carlton House Terrace London SW1Y 5AG
Installation of an O2 Motion device and associated works on the building facade.
22/04293/LBC
2022 Approved
5 - 7 Carlton Gardens London SW1Y 5AD
Replacement of existing windows with doors and door replacement on fifth floor level, new…
22/03015/FULL
2022 Approved
Club 106 Pall Mall London SW1Y 5EP
External works of repair and redecoration and installation of roof safety harness system…
22/03807/LBC
2022 Approved
Club 106 Pall Mall London SW1Y 5EP
External works of repair and redecoration and installation of roof safety harness system…
22/03806/FULL
2016 Approved
Peter Runge House 3-4 Carlton House Terrace London SW1Y 5DG
Variation of Condition 1 of listed building consent dated 21 October 2015 (RN: 15/07271/L…
16/04676/LBC
2016 Approved
The Royal College Of Pathologists 2 Carlton House Terrace London SW1Y 5AF
Variation of Condition 1 of listed building consent dated 22 December 2015 (RN: 15/05366/…
16/04060/LBC
2016 Approved
The Royal College Of Pathologists 2 Carlton House Terrace London SW1Y 5AF
Display of non-illuminated signage measuring 1214mm x 2517mm and 585mm x 15775mm on scaff…
16/01141/ADV
2016 Approved
The Royal College Of Pathologists 2 Carlton House Terrace London SW1Y 5AF
Display of non-illuminated signage measuring 1214mm x 2517mm and 585mm x 15775mm on scaff…
16/02222/LBC
2016 Approved
106 Pall Mall London SW1Y 5EP
Internal alterations including the subdivision of double-height basement kitchen space by…
16/00143/LBC
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