Planning application
PP/26/01296
Flat 3, 4 Collingham Road, London, SW5 0LT
Proposal
Erection of rear extension to first floor flat
As published by the council, reference PP/26/01296
Timeline
Dates from the published record
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19 Jan 2026
Received by Kensington and Chelsea
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2 Jun 2026
Decision issued: Refuse Planning Permission/Consent
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20 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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CON/21/03159 Granted
145 Cromwell Road, London, SW7 4DW
Details required by condition 3 (Submission of details) of planning permission 19/02149 (Replacement of all single glazed windows with exact (double glazed, timber framed) replicas of original)
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CON/25/06363 Granted
156 Cromwell Road, London, SW7 4EF
Details required by Conditions 3 (Cycle storage) and 4 (Submission of details) of planning permission 25/03121 (DOCUMENTS AND DRAWINGS ARE NOT AVAILABLE ELECTRONICALLY FOR THIS APPLICATION. PLEASE CALL THE CASE OFFICER. Change of use of entire building from Office (Use Class E) to Embassy (Sui Generis), including installation of flagpole).
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CA/26/03056 Awaiting decision
152-154 Cromwell Road, London, SW7 4EF
Installation of temporary decorative scaffold shround comprising a 1:1 printed image of the building facade with an inset area for advertising and information measuring 13 x 6.75 metres (extension to the period granted by application ref:CA/25/00725).
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PP/25/06282 Granted
9 Collingham Place, London, SW5 0QE
Erection of additional mansard floor at fourth floor level to enlarge the existing flat at second and third floor levels; erection of rear extensions at basement, first and third floor levels
-
PP/26/00517 Granted
9 Collingham Place, London, SW5 0QE
Erection of an additional mansard floor at roof level and rear extensions at basement, first, second and third floor levels
-
ARB/24/06561 Granted
Flat 11, 38 Courtfield Gardens, London, SW5 0PJ
Prune 1 x London Plane (T1), 1 x Plane (T2), 1 x Holly (T3) and 1 x Lime (T4) as specified.
Other full applications applications
In Kensington and Chelsea
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PP/18/01985 Withdrawn
Flat 3, 24 Cornwall Gardens, London, SW7 4AW
Works to second floor flat including erection of rear extension, creation of external roof terrace areas above and to rear of said extension (with perimeter metal railings), together with internal alterations including removal of internal wall between kitchen and living room, and other refurbishment works
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PP/26/02078 Granted
Ruskin House, 35A Hyde Park Gate, London, SW7 5DN
Installation of 2no. roof mounted ASHPs including acoustic enclosure / screening.
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PP/26/02247 Withdrawn
41 Halsey Street, London, SW3 2PT
Refinements to lower ground floor conservatory and basement extension through removal of low external wall, installation of full height sliding doors, and reinstatement of larger external steps. Replace glazed flat roof at ground floor level with glass-box extension incorporating solid floor structure and internal walk on rooflight. Installation of glazed sliding doors out to a Juliet balcony with metal railings balustrade. Create access from living room by lowering sill of window to form archway; Single-storey extension to closet wing, aligning depth with No.?40 Halsey Street. New timber-framed glazed doors to the rear of extended wing. Widening opening to half-level study within partition to accommodate new double doors. Sunroom will include full-height sliding doors and Juliet balcony with painted or PPC metal balustrades.
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PP/26/02237 Granted
134 Brompton Road, London, SW3 1HY and 5 Cheval place, London, SW7 1EW
Change of use from Use Class E to Restaurant (Use Class E(b)), new recessed front bifolding doors, awning, and signs at front and rear, replace rooflights to double glazed hipped white UPVC/aluminium painted white, replace rear doors to match existing
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PP/26/02978 Granted
59A Palace Gardens Terrace, London, W8 4RU
Variation of Condition 2 (Compliance with approved drawings) of planning permission Ref. PP/24/07747 dated 28th February 2025, to replace proposed front and rear elevation drawings with new proposed drawings representing modest elevational changes of main building at first floor level only.