Planning application
CL/26/01546
15 Chelsea Square, London, SW3 6LF
Proposal
Replacement of six existing windows and door on ground floor side elevation with a pair of French doors with side-lights and bay window;in white painted hardwood (Certificate of Lawful Proposed Use/Development)
As published by the council, reference CL/26/01546
Timeline
Dates from the published record
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26 Feb 2026
Received by Kensington and Chelsea
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5 Jun 2026
Decision issued: Grant Planning Permission/Consent
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20 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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PP/24/05884 Granted
15 Chelsea Square, London, SW3 6LF
Installation of five air conditioning units within a louvered acoustic enclosure at rear of second floor roof terrace
-
PP/26/01705 Granted
15 Chelsea Square, London, SW3 6LF
Construction of a single-storey basement extension, reconfiguration of the open space/garden at the rear of the property at both basement and ground floor levels, replacement of the L-shaped external concrete staircase with a steel spiral staircase, realignment of the rear wall of the main basement accommodation outwards by 1.5 metres into the paved external area, proposed extension of the ground floor rear terrace by approx. 0.7m over the top of the extended basement accommodation and window fenestration alterations to cinema room.
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ARB/26/01031 Granted
23 Chelsea Square, London, SW3 6LF
FELL 1x Gleditsia at rear
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CON/26/00449 Granted
15 Chelsea Square, London, SW3 6LF
Details required by condition 7 (Contamination - Verification Report) of planning permission 23/02435 (Construction of single-storey basement extension below footprint of property; demolition of rear single-storey flat roof structure; replacement windows at courtyard elevation; replacement of 4 windows and door with French doors; replacement of railings on parapet wall around second floor roof terrace).
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CON/26/01382 Granted
14 Chelsea Square, London, SW3 6LF
Details required by Condition 3 (timber screening) of planning permission PP/25/02407 (Installation of air conditioning units, and retention of timber screen fence and doors with sidelights on second floor roof terrace)
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CON/25/04789 Withdrawn
15 Chelsea Square, London, SW3 6LF
Details required by condition 7 (Contamination - Verification report) of planning permission 23/02435 (Construction of single-storey basement extension below footprint of property; demolition of rear single storey flat roof structure; replacement windows at courtyard elevation; replacement of 4 windows and door with French doors; replacement of railings on parapet wall around second floor roof terrace)
Other lawful development applications
In Kensington and Chelsea
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CL/26/01267 Granted
1 Bray Place, London, SW3 3LL
Confirmation that the existing structure at no. 27 Coulson Street / 1 Bray Place was built in the early 1970s as a single development over three floors (basement to first floor) after the demolition of a previous infill building in 1971 (Certificate of Lawful Existing Use)
-
CL/26/02700 Granted
27 Lansdowne Road, London, W11 3AG
Provision of lead flashing to parapet/cornice lines and painting of windows and existing painted areas of the building in soft white (Certificate of Proposed Use/Development).
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CL/26/02515 Granted
Flats A and C, 61 Holland Park, London, W11 3SJ
Reconfiguration of the accommodation at Flat A and Flat C to create one four-bed dwelling and one one-bed dwelling (Certificate of Lawful Proposed Development / Use)
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CL/26/03998 Awaiting decision
87 Addison Road, London, W14 8ED
Confirmation that the existing A/C Units & Screening to the north and south sides on the flat roofs at ground and first floor levels are lawful (Certificate of Lawful Existing Use/Development)
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CL/26/04000 Awaiting decision
191 Freston Road, London, W10 6TH
Confirmation that the use of the property as Class F1(a) (Education) is lawful (Certificate of Lawful Existing Use/Development)