Planning application
PP/25/05975
18 Halsey Street, London, SW3 2QH
Proposal
Erection of glazed enclosure on ground floor terrace. Installation of bore hole to feed ground source heat pump; air conditioning system; black cast iron stairs from ground floor to terrace; and new fenestration.
As published by the council, reference PP/25/05975
Timeline
Dates from the published record
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6 Oct 2025
Received by Kensington and Chelsea
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27 Mar 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 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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ARB/26/03970 Granted
14 Halsey Street, London, SW3 2QH
Prune 1 x Fig (rear)
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LB/24/06909 Granted
19 Halsey Street, London, SW3 2QH
Variation of Condition 2 (compliance with drawings) of planning permission LB/23/04473 to replace new/replaced single glazed widows, with double glazed units.
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LB/21/03832 Granted
4 Halsey Street, London, SW3 2QH
Variation of condition 4 (detailed drawings or samples of material) of listed building consent 07/00233 to approval of submitted details post-completion.
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CON/22/04166 Granted
4 Halsey Street, London, SW3 2QH
Details required by condition 3 (submission of details) of listed building consent 21/06540 (Reconstruction of lower ground floor side extension and lowering non original floor finish level by approx. 250mm. Insertion of window to rear of closet wing. Replacement glazing to rear elevation. Alterations to rear garden layout . Insertion of doors and window to front lightwell. Delta membrane system and insulation to be installed. Removal of non original panelling throughout and plain plaster walls to be restored at ground floor. Erection of light-weight side-infill rear extension, accessed from landing. Replacement external stairs to rear garden. Reinstatement of fireplace. Refurbishment of front steps at 1st floor. Original door reinstated. Reinstatement of 2nd and 3rd floor fireplaces. Raise stepped-back parapet creating room with sash window above closet wing. Extension set back behind flat green roof, reducing visual impact. Insertion of openable roof light over stairs. Refurbish staircase throughout and replace non-original spiralled spindles and balustrade with square section spindles and new balustrade. New green roof to closet wing. Internal refurbishment)
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LB/25/05976 Granted
18 Halsey Street, London, SW3 2QH
Erection of glazed enclosure on ground floor terrace. Installation of bore hole to feed ground source heat pump; air conditioning system; black cast iron stairs from ground floor to terrace; and new fenestration.
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LB/26/02790 Granted
1 Halsey Street, London, SW3 2QH
Replacement non-original door with sash window at ground floor. Removal of rear railings on rear terrace. Installation of air conditioning unit in rear reception room in joinery. Remove dropped ceiling in rear reception room and restore original proportions of room. Dividing wall to be relocated to reinstate original proportions of room. Replace fireplace surround with surround in-keeping with period. Additional bathroom in closet wing at second floor. Remove external cement pointing and replace with lime mortar, all masonry paint removed from brickwork and stucco render, and rear render removed. Brick work to be cleaned. Period features to be reinstated where non existing, such as doors, skirting, architraves, cornicing. Gable wall to be internally insulated throughout, insulation fixed to wall. Works to doors on circulation spaces. Alterations to previously approved planning and listed building consent. Retrospective Approval sought for works to rebuild garden walls.
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.