Planning application
LB/25/06500
12 Kensington Square, London, W8 5HE
Proposal
Variation of condition 2 (compliance with approved drawings) of listed building consent ref. LB/23/03486 dated 8th August 2023, to allow: removal of one rooflight and enlargement of other; change from the use of York stone to Portland stone; retention of original raised section at end of rear garden; retention of original fountain and replacement of original semi-circular pool with a rectangular one; change from Planting zone to raised bed with built-in seating (Retrospective).
As published by the council, reference LB/25/06500
Timeline
Dates from the published record
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31 Oct 2025
Received by Kensington and Chelsea
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10 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 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/25/06499 Refused
12 Kensington Square, London, W8 5HE
Variation of condition 2 (compliance with approved drawings) of planning permission Ref. PP/23/03485 (Extensions to existing building including basement extension under garden area, lightwell infill extension and other internal and external alterations) dated 08th August 2023, to allow: removal of one rooflight and enlargement of other; change from the use of York stone to Portland stone; retention of original raised section at end of rear garden; retention of original fountain and replacement of original semi-circular pool with a rectangular one; change from Planting zone to raised bed with built-in seating (Retrospective).
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CON/25/06504 Refused
12 Kensington Square, London, W8 5HE
Details required by condition nos. 4d (basement rooflight), 4f (external paving), and 9 (landscaping) of planning permission ref. PP/23/03485 dated 08th August 2023 (Extensions to existing building including basement extension under garden area, lightwell infill extension and other internal and external alterations).
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CON/25/06505 Refused
12 Kensington Square, London, W8 5HE
Details required by condition nos. 3d (basement rooflight), 3f (external paving) and 9 (landscaping) of listed building consent ref. LB/23/03486 dated 08th August 2023 (Extensions to existing building including basement extension under garden area, lightwell infill extension and other internal and external alterations).
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CON/26/00741 Granted
12 Kensington Square, London, W8 5HE
Details required by Condition 4A (glazing of rear LGF level infill extension) attached to planning permission Ref. PP/23/03485 dated 08th August 2023 (Extensions to existing building including basement extension under part of rear garden area with roof lights, light well and glazed infill extension and other internal and external alterations).
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CON/26/00545 Granted
12 Kensington Square, London, W8 5HE
Details required by Condition 3a (Glazing of rear LGF infill extension) attached to Listed Building consent Ref. LB/23/03486 dated 08th August 2023 (Extensions to existing building including basement extension under part of rear garden area with roof lights, light well and glazed infill extension and other internal and external alterations).
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LB/25/06106 Withdrawn
St James House, 13 Kensington Square, London, W8 5HD
Re-building of leaning front garden wall in reinforced concrete with a painted rendered finish to match existing appearance.
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.