13 - 16 Carlton House Terrace London SW1Y 5AH Data via plota.co.uk
Proposal
The introduction of new security upgrades to the lightwells to 13-16 Carlton House Terrace, including metal window bars and gates. (Linked to 26/04946/LBC) Data via plota.co.uk
Application progress
Approved on 4 Sept 2026 · Delegated Decision · Last checked 5 Sept 2026
Documents 28
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 18
Application forms 1
Consultation & comments 1
Other documents 5
Associated applications 2
- FullThe introduction of new security upgrades to the lightwells to 13-16 Carlton House Terrace…This application26/04945/FULL
Site constraints 10
Show the other 26 with distances
- 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
- 68 mDuke of York Column and StepsGrade I
- 72 mStatue of Sir Colin Campbell, Lord ClydeGrade II
- 88 mThe Royal Marines MemorialGrade II
- 89 mStatue of Captain Robert Falcon ScottGrade II
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- 95 mStatue of King Edward ViiGrade II
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- 102 m18 Lamp Posts Numbered 1 to 18 (Consecutive)Grade II
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- 105 mInstitute of DirectorsGrade I
- 108 mStatue of Captain CookGrade II
- 109 m120, Pall Mall Sw1Grade II
- 109 mThe Two Chairmen Public HouseGrade II
- 110 m121-123, Pall Mall Sw1Grade II
- 113 mRoyal Artillery Memorial of the South African WarGrade II*
- 117 m14-16, Cockspur Street Sw1Grade II
- 118 m17-19, Cockspur Street Sw1Grade II
- 119 m125, Pall Mall Sw1Grade II
- 119 mThe CitadelGrade II
- 123 m20, Cockspur Street Sw1Grade II
- 139 mThe AthenaeumGrade I
- 148 mNumbers 1-9 Including Railings to North and EastGrade I
- 149 m2 Lampstandards Numbered 2 and 3 by George Iii StatueGrade II
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
- 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
- 4 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Donald Insall Associates
How this decision compares
Decided in 43 days from validation, 10 days faster than Westminster's median of 53 for extensions. Approved, as 87% of extensions here are.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
28 neighbours consulted · Last counted 5 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15106340
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
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.
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13 - 16 Carlton House Terrace London SW1Y 5AH
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