13 - 16 Carlton House Terrace London SW1Y 5AH Data via plota.co.uk
26/04946/LBC - Listed Building Consent Application
Approved
Proposal
The introduction of new security upgrades to the lightwells to 13-16 Carlton House Terrace, including metal window bars and gates. (Linked to 26/04945/FULL) Data via plota.co.uk
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View original council record ↗Last checked
Application progress
✓
Received
23 Jul 2026
✓
Approved
3 Sept 2026
Approved on 3 Sept 2026 · Delegated Decision · Last checked 3 Sept 2026
Documents 27
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 18
PDF
LOCATION PLAN
Location Plan · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 02 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 02 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 03 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 03 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 04 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 04 AS EXISTING
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 01 AS PROPOSED
Drawing · 23 Jul 2026
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ENTRANCE SECURITY LIGHTWELL 02 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 02 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 03 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 03 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 04 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 04 AS PROPOSED
Drawing · 23 Jul 2026
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PDF
PROPOSED WINDOW SECURITY BARS GENERIC DETAIL
Drawing · 23 Jul 2026
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PDF
PROPOSED SECURITY RAILINGS AND GATE GENERIC DETAIL
Drawing · 23 Jul 2026
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PROPOSED SECURITY RAILINGS AND GATE GENERIC DETAIL
Drawing · 23 Jul 2026
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PDF
ENTRANCE SECURITY LIGHTWELL 01 AS EXISTING
Drawing · 23 Jul 2026
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Application forms 1
Consultation & comments 3
Associated applications 2
- The introduction of new security upgrades to the lightwells to 13-16 Carlton House Terrace, including metal window bars…
Site constraints 13
Grade I listed: Numbers 10 to 18 (Including the Institute of Contemporary Arts) and Railings to North and West
List entry 1209794 · The pin is inside its outline · 33 more listed buildings within 150 m (7 Grade I, 1 Grade II*, 25 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 33 with distances
- 56 mDuke of York Column and StepsGrade I
- 56 m33 Lamp Standards Lining Footpaths and Ride on North SideGrade II
- 59 mStatue of Lord LawrenceGrade II
- 67 m44 Lamp Standards Lining Road and Circus in Front of PalaceGrade II
- 72 mStatue of Sir Colin Campbell, Lord ClydeGrade II
- 83 mThe CitadelGrade II
- 84 mInstitute of DirectorsGrade I
- 88 mThe Royal Marines MemorialGrade II
- 89 mStatue of Captain Robert Falcon ScottGrade II
- 89 mNumbers 1-9 Including Railings to North and EastGrade I
- 90 m120, Pall Mall Sw1Grade II
- 91 m121-123, Pall Mall Sw1Grade II
- 93 m2 Mounting Blocks on Kerbs Outside South East and South West Corners Respectively of the Athenaeum and the Institute of DirectorsGrade II
- 95 mStatue of King Edward ViiGrade II
- 95 m125, Pall Mall Sw1Grade II
- 96 mStatue of Sir John Fox BurgoyneGrade II
- 97 m14-16, Cockspur Street Sw1Grade II
- 101 mThe Two Chairmen Public HouseGrade II
- 102 m18 Lamp Posts Numbered 1 to 18 (Consecutive)Grade II
- 105 mStatue of Sir John FranklinGrade II
- 107 m17-19, Cockspur Street Sw1Grade II
- 107 mCivil Service Department Offices (Former Admiralty Offices)Grade II
- 108 mRoyal Artillery Memorial of the South African WarGrade II*
- 108 mStatue of Captain CookGrade II
- 114 m20, Cockspur Street Sw1Grade II
- 120 mAdmiralty Arch, First Sea Lord's Residence and Offices, Balustrades and StepsGrade I
- 122 mThe AthenaeumGrade I
- 140 mRoyal Opera Arcades (including No 24 Charles II Street and No 5B Pall Mall)Grade I
- 140 mNew Zealand HouseGrade II
- 141 m7-9, WATERLOO PLACE SW1 (See details for further address information)Grade II
- 141 mThe Travellers ClubGrade I
- 147 mNational Westminster BankGrade II
- 149 m2 Lampstandards Numbered 2 and 3 by George Iii StatueGrade II
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.
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.
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.
National infrastructure project 53 m away: Thames Tideway Tunnel
The site is 53 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, 40 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.
Registered park or garden 27 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.
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 63 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.
Building
Floor area639 m² (6,878 sq ft)
Energy ratingF (21 out of 100), could reach D
PropertyMid-terrace flat, 7 habitable rooms
BuiltBefore 1900
HeatingElectric underfloor heating
WallsSolid brick, as built, no insulation (assumed)
From the energy performance certificate lodged in September 2015, the latest held for this property. The building may have changed since. View the certificate
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About Plota's data serviceEvery application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- SW1Y 5AH
- Received
- 23 Jul 2026
- Validated
- 23 Jul 2026
- Ward
- St James's
- Case officer
- Show
- Target decision
- 17 Sept 2026
- Decision
- Application Permitted
- Decision date
- 3 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Donald Insall Associates
How this decision compares
Decided in 42 days from validation, 13 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.
This one42d
Council55d
UK55d
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 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15106340
- Planning Portal ref
- PP-15106340
- Comments by
- 2 Sept 2026
- Site or press notice
- 12 Aug 2026
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
Within ~100m
Nearby activity
2025
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2025
20 Carlton House Terrace London SW1Y 5AN
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Approved
20 Carlton House Terrace London SW1Y 5AN
Amendments to the glazed pavilion at tenth floor terrace level.
2025
Waterloo Gardens East Of Waterloo Place Carlton House Terrace London
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2025
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14 - 16 Cockspur Street London SW1Y 5BL
Continued use of the building as an Embassy including the provision of a consular/visa se…
2025
20 Carlton House Terrace London SW1Y 5AN
Installation of pergola structure at L8 terrace, new bi-fold doors at L8 terrace and new…
2025
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10 Spring Gardens London SW1A 2BN
Display of advertisements on hoardings including a living wall measuring 13.4m x 3.47m; 1…
2025
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Sabadell House 120 Pall Mall London SW1Y 5LU
Internal reconfiguration of first floor.
2024
Approved
Waterloo Gardens East Of Waterloo Place Carlton House Terrace London
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2024
Sabadell House 120 Pall Mall London SW1Y 5LU
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10 Spring Gardens London SW1A 2BN
Display of advertisements on hoardings measuring 2.44m x 46.82m, 2.44m x 13.29m, 2.44m 19…
2024
Approved
10 Carlton House Terrace London SW1Y 5AH
Replacement of lightwell lights and electrical accessories (security cameras, emergency e…
2024
Approved
10 Carlton House Terrace London SW1Y 5AH
Replacement of lightwell lights and electrical accessories (security cameras, emergency e…
2023
Approved
20 Carlton House Terrace London SW1Y 5AN
Installation of six doors to facilitate access onto the existing level 02 south terrace a…
2024
20 Carlton House Terrace London SW1Y 5AN
Installation of new external lighting to the Level 01 podium, Cockspur Court public realm…
2024
Sabadell House 120 Pall Mall London SW1Y 5LU
Use of ground and mezzanine floors as a Club (Class E).
2023
Approved
12 Carlton House Terrace London SW1Y 5AH
Removal of non-load-bearing internal partitions, plywood steps, a platform lift and fixed…
2023
Approved
Waterloo Gardens East Of Waterloo Place Carlton House Terrace London
T430 - Platanus x hispanica (London Plane): prune back from lamp column to give clearance…
2016
Approved
116-119 Pall Mall London SW1Y 5ED
Reinstatement of a lift, installation of a new car lift, alterations to third floor layou…
2016
Approved
116-119 Pall Mall London SW1Y 5ED
Reinstatement of a lift, installation of a new car lift, alterations to third floor layou…
2016
Approved
24 Carlton House Terrace London SW1Y 5AP
Demolition of the existing mansard roof and construction of two floors to create a duplex…
2016
Refused
17 Carlton House Terrace London SW1Y 5BD
The temporary installation of a bronze sculpture of a horse by the British sculptor Hamis…
2016
Withdrawn
10 Spring Gardens London SW1A 2BN
Installation of a pavilion in conjunction with the City Nomads exhibition at 10 Spring Ga…
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
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.
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13 - 16 Carlton House Terrace London SW1Y 5AH
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