Flat 1, 6 Onslow Gardens, London, SW7 3LY

This site has had 3 applications since 2026.

• LB/26/01308 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

  Submitted 21 Jan 2026 Heritage and listed buildings
• LB/26/01271 Awaiting decision

  Flat 1, 6 Onslow Gardens, London, SW7 3LY

  Internal structural alterations to lower ground floor and ground floor.??

  Submitted 14 Jan 2026 Heritage and listed buildings

1. 21 Jan 2026

   Received by Kensington and Chelsea

2. 20 Jul 2026

   Added to PlanIndex

3. 1 Aug 2026

   Status changed to Pre-Determination Stage

   Previously Validated and Registered.

4. Decision

   Awaiting decision

   Decision expected by 18 March 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Kensington and Chelsea took a median of 84 days over the applications it decided in the last year.

This application is with Kensington and Chelsea for determination, against a statutory target of eight weeks. Over the last year Kensington and Chelsea decided full applications in a median of 111 days. More in our guide to how long planning decisions take.

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.

• Flat 1, 6 Onslow Gardens, London, SW7 3LY

  LB/26/01308 Submitted 21 Jan 2026 50 yards away

  96% historically approved · decision due ~18 Mar

  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

  Awaiting decision Heritage and listed buildings Windows or glazing 12 docs

• Flat 1, 6 Onslow Gardens, London, SW7 3LY

  LB/26/01271 Submitted 14 Jan 2026 50 yards away

  96% historically approved · decision due ~11 Mar

  Internal structural alterations to lower ground floor and ground floor.??

  Awaiting decision Heritage and listed buildings 12 docs

• 6, 7 & 8 Onslow Gardens, London, SW7 3LY

  CON/21/02684 Submitted 30 Apr 2021 50 yards away

  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)

  Split decision Conditions Roofing 24 docs

• 8A Onslow Gardens, London, SW7 3LY

  LB/20/03184 Submitted 16 Jun 2020 50 yards away

  Provision of air conditioning unit and associated pipework to lower ground floor lightwell southeast elevation.

  Refused Heritage and listed buildings 15 docs

• Flat 1/2, 21 Onslow Gardens, London, SW7 3AL

  LB/26/01309 Submitted 20 Jan 2026 100 yards away

  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

  Withdrawn Heritage and listed buildings Windows or glazing 2 docs

• Flat 1/2, 21 Onslow Gardens, London, SW7 3AL

  PP/26/01299 Submitted 20 Jan 2026 100 yards away

  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

  Withdrawn Full applications Windows or glazing 33 docs

• 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

  Received 9 Apr, published by the council 1 Aug 2026 Full applications
• PP/26/03176 Granted

  12 Shawfield Street, London, SW3 4BD

  Replacement windows, new rooflight and replacement lower ground rear rooflights.

  Received 15 Jun, published by the council 20 Jul 2026 Full applications
• 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.

  Received 9 Jun, published by the council 20 Jul 2026 Full applications
• 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.

  Received 9 Jun, published by the council 20 Jul 2026 Full applications
• 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.

  Received 1 Jun, published by the council 20 Jul 2026 Full applications