Planning application
PP/25/05262
The Penthouse, Lansdowne Court, 42 Lansdowne Crescent, London, W11 2NW
Proposal
Removal of roof addition (penthouse flat) and its replacement with new roof addition to include a roof terrace with a fixed planter and fixed low-level table, photovoltaic panels and an Air Source Heat Pump (ASHP). (Development is the same as that approved under PP/23/00994 save for the addition of a 600mm high fixed planter and a 300mm high fixed table on the approved roof terrace).
As published by the council, reference PP/25/05262
Timeline
Dates from the published record
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4 Sep 2025
Received by Kensington and Chelsea
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17 Oct 2025
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 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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PC/25/04578 Granted
44 Lansdowne Road, London, W11 2LU
Provision of a pavement crossover
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CON/26/01105 Granted
44 Lansdowne Road, London, W11 2LU
Details required by Condition 6 (Submission of details - Trellis. Before the relevant part of the works are begun, detailed section and elevation drawings (scale 1:10) of the approved trellis shall be submitted to and approved in writing by the local planning authority and the development shall not be completed otherwise than in accordance with the details so approved) of planning permission PP/25/02313 (Removal of one non-original front boundary pillar; replacement of pedestrian gate; installation of combined car and secondary bin gate and bin store; new lowered paving and landscaping to front garden; installation of gate and railings to lightwell; reconfiguration of stepped access to side of house; replacement of timber trellis along side boundary wall; modification to existing pavement crossover.)
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PP/26/01261 Granted
5 Lansdowne Crescent, London, W11 2NH
Variation of Condition 2 (Compliance with approved drawings) of planning permission ref. PP/24/06164 dated 30th December 2024 (Rear side infill and roof extensions; lowering of lower ground floor level; construction of front basement plant room; provision of a/c and enhancement of front and rear facades and fenestration) for alterations to bike store and removal of door behind front lower ground level; fenestration to rear extension at lower ground floor to incorporate French doors; design of main entrance door; alteration to rear first floor window sill; lengthening one and widening another first floor side window; alterations to rooflights; rear garden hard and soft landscaped areas and landscaping details.
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PP/26/00419 Granted
9 Lansdowne Crescent, London, W11 2NH
Installation of Crittall-style glazed doors within an enlarged rear opening, enhancing access, natural light, and the visual connection to the garden.Painting the front door to a dark blue.Like-for-like replacement of the front bay window door, preserving its proportions, detailing, and its contribution to the architectural character of the property.Replacement of the existing skylight with a new unit of similar size and position, providing improved thermal performance while preserving the appearance of the rear roofscape(AMENDED DESCRIPTION)
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PP/26/02003 Granted
14 Lansdowne Crescent, London, W11 2NJ
Extension to basement under main footprint of house and under part of rear garden. Extension of existing lightwell to front, installation of new skylights to rear, external alterations to fenestration at rear ground and lower ground floor level. Installation of replacement plant, and associated works to garden landscaping. Installation of internal lift and other associated works.
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PP/26/02657 Granted
44 Lansdowne Crescent, London, W11 2NN
Replacement of timber windows with slim line double glazed timber sash & casement units to all elevations; the rear door to be renewed with hardwood timber door
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.