Planning application
LB/26/01308
Flat 1, 6 Onslow Gardens, London, SW7 3LY
Proposal
Installation of new sash windows to front elevation ground and lower ground floors and new French doors and fanlight to rear elevation ground and lower ground floors
As published by the council, reference LB/26/01308
Timeline
Dates from the published record
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21 Jan 2026
Received by Kensington and Chelsea
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20 Jul 2026
Added to PlanIndex
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1 Aug 2026
Status changed to Pre-Determination Stage
Previously Validated and Registered.
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Kensington and Chelsea for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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PP/26/01306 Awaiting decision
Flat 1, 6 Onslow Gardens, London, SW7 3LY
Installation of new sash windows to front elevation ground and lower ground floors and new French doors and fanlight to rear elevation ground and lower ground floors
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LB/26/01271 Awaiting decision
Flat 1, 6 Onslow Gardens, London, SW7 3LY
Internal structural alterations to lower ground floor and ground floor.??
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CON/21/02684 Split decision
6, 7 & 8 Onslow Gardens, London, SW7 3LY
Details required by condition 2 (submission of details) and 4 (samples) of listed building consent 20/06324 (Roof replacement and repair, masonry repair and redecoration, joinery repair and redecoration, and tanking of electrical pavement vault)
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LB/26/01309 Withdrawn
Flat 1/2, 21 Onslow Gardens, London, SW7 3AL
Internal alterations at ground floor and lower ground floor levels; alterations to internal lightwell; alterations to fenestration to restore original character of rear elevation at lower ground floor level and installation of AC units
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PP/26/01299 Withdrawn
Flat 1/2, 21 Onslow Gardens, London, SW7 3AL
Internal alterations at ground floor and lower ground floor levels; alterations to internal lightwell; alterations to fenestration to restore original character of rear elevation at lower ground floor level and installation of AC units
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LB/26/01992 Granted
12 Foulis Terrace, London, SW7 3LZ
Installation of 16 microgeneration solar photovoltaic panels at roof level
Other heritage and listed buildings applications
In Kensington and Chelsea
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LB/26/02796 Granted
Flat 8, 89 Onslow Square, London, SW7 3LT
Strip out entire property for a full refurbishment to include blocking up one entrance into the sitting room, supply and fit new kitchen and appliances, plumb in 2x new bathrooms, supply and fit new radiators where necessary, re-decorate entire property; supply and lay wooden floor in hallway with acoustic insulation.
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LB/26/02366 Withdrawn
10 Palace Gate, London, W8 5NF
Replacement of exsiting defective internal rainwater downpipe.(Retrospective Application)
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LB/26/02248 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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LB/25/05122 Granted
Flat 58, Lincoln House, Basil Street, London, SW3 1AW
Replacement of windows to match existing at 5th floor rear elevation
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LB/26/02461 Granted
11 Whitehead's Grove, London, SW3 3HB
Internal and external works including: full redecoration; replacement kitchen units and rearrangement; new lighting and full electrical rewiring with new consumer unit; replacement radiators and heated towel rails; new sanitaryware in first floor and second floor bathrooms including new vanity unit with Carrara marble top; bespoke joinery including bookshelves, wardrobes and jib doors to bedrooms and hallway; reduction of doorway to sitting room with new door; new fireplace surround to master bedroom; sanding and refinishing of timber floors; new floor tiles to kitchen and bathrooms; new carpet to stairwell and landings; installation of washer/dryer to second floor landing cupboard. External works including rehanging of kitchen stable door to open outwards; installation of secondary glazing; replacement of second floor dormer window to match original design; repointing of brickwork; repainting/varnishing of front door.