Planning application
12 Kensington Square, London, W8 5HE
Works: Extension Loft or dormer
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
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).
As published by the council, reference PP/25/06499
Application record
- Reference
- PP/25/06499
- Type
- Planning Permission
- Status
- Decided
- Decision
- Refuse Planning Permission/Consent
- Received
- 31 Oct 2025
- Decided
- 10 Jun 2026
- Ward
- Queen's Gate
- Parish
- 14
- Postcode
- W8 5HE
Site history
Applications at this address on the Kensington and Chelsea register
This site has had 6 applications since 2025: 2 approved, 4 refused.
-
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).
-
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).
-
LB/25/06500 Refused
12 Kensington Square, London, W8 5HE
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).
-
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).
-
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).
Timeline
Dates from the published record
-
31 Oct 2025
Received by Kensington and Chelsea
-
10 Jun 2026
Decision issued: Refuse Planning Permission/Consent
-
20 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
20 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this refusal means
Kensington and Chelsea refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
12 Kensington Square, London, W8 5HE
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).
Refused Heritage and listed buildings Loft or dormer 2 docs -
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).
Refused Conditions Extension Loft or dormer 10 docs -
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).
Refused Conditions Extension Loft or dormer 13 docs -
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).
Granted Conditions Extension Loft or dormer +1 12 docs -
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).
Granted Conditions Extension Loft or dormer +1 11 docs -
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.
Withdrawn Heritage and listed buildings 22 docs
Other full applications
In Kensington and Chelsea
-
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/26/03176 Granted
12 Shawfield Street, London, SW3 4BD
Replacement windows, new rooflight and replacement lower ground rear rooflights.
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PP/26/03048 Granted
24 Charles II Place, London, SW3 4NG
Removal of existing conservatory structure. Construction of a single-storey rear extension at lower ground floor level. Installation of a contemporary three-panel sliding glazed door opening onto rear garden. Internal reconfiguration at lower ground floor level.
-
PP/26/03042 Granted
Flat 7, 7 Egerton Place, London, SW3 2EF
Installation of air conditioning system including external condenser unit housed within enclosure at roof level. Replacement of roof lantern, rooflight and roof access hatch with flat glazed access hatch and rooflights. Replacement of two rear elevation uPVC windows with timber-framed slimline double-glazed sliding sash windows; and associated external alterations.
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PP/26/02897 Withdrawn
46 Evelyn Gardens, London, SW7 3BH
Positioning of two new external heat pump condensers within two separate acoustic enclosures, one on main roof of house and other on rear forth floor roof terrace.