Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

This site has had 8 applications since 2026: 6 approved, 0 refused.

• CON/26/01494 Awaiting decision

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Discharge of Condition (submission of details - v) section (1:20/1:10) drawings of relationship between the lowered floor slab and historic footings at lower ground floor indicating the retention of historic footings) of Listed Building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Submitted 8 Apr 2026 Conditions
• NMA/26/02020 Awaiting decision

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Non-material amendment to planning permission PP/25/02621 to allow internal layout alterations to some rooms at lower ground, ground and first floor level; and alterations to floor levels at lower ground floor level and first floor level

  Submitted 1 Apr 2026 Amendments
• CON/26/01254 Granted

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Details required by Condition 3 (submission of details - c) plan (1:10) and section (1:5) drawings of new rooflights, including curved rooflight and pavement light) of Listed Building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Decided 20 May 2026 Conditions
• CON/26/01257 Granted

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Details required by condition 3(Submission of details - w) extent and form of alterations to floor structure in G11, demonstrating retention of joists and any surviving floor surfaces) of listed building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Decided 19 May 2026 Conditions
• CON/26/01256 Granted

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Details required by Condition 3 (v) (Submission of Details) of?Listed Building Consent LB/25/02622?(Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works).?

  Decided 20 May 2026 Conditions
• CON/26/01255 Granted

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Details required by condition 3(g)(submission of details - (g) Elevation (1:5) drawings and photographs of proposed airbricks;) of listed building consent 25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works).

  Decided 20 May 2026 Conditions
• CON/26/01253 Granted

  Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  Details required by Condition 3 (submission of details - a) elevation (1:10) and section (1:5) drawings of new external doors and architraves with details of mouldings in section (1:1). New doors shall be made of solid timber and hand painted, unless otherwise specified in the approved drawings) of Listed Building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Decided 20 May 2026 Conditions

1. 1 Apr 2026

   Received by Kensington and Chelsea

2. 4 Jun 2026

   Decision issued: Grant Planning Permission/Consent

3. 20 Jul 2026

   Added to PlanIndex

Kensington and Chelsea granted permission on 4 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Flat 3, 55 Onslow Square, London, SW7 3LR

  ARB/23/01319 Submitted 23 Feb 2023 0m away

  Prune 1 x Lime Tree in rear garden.

  Granted Trees 7 docs

• Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  CON/26/01257 Submitted 23 Jan 2026 0m away

  Details required by condition 3(Submission of details - w) extent and form of alterations to floor structure in G11, demonstrating retention of joists and any surviving floor surfaces) of listed building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Granted Conditions Extension Demolition 13 docs

• Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  CON/26/01256 Submitted 23 Jan 2026 0m away

  Details required by Condition 3 (v) (Submission of Details) of?Listed Building Consent LB/25/02622?(Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works).?

  Granted Conditions Extension Demolition 14 docs

• Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  CON/26/01255 Submitted 23 Jan 2026 0m away

  Details required by condition 3(g)(submission of details - (g) Elevation (1:5) drawings and photographs of proposed airbricks;) of listed building consent 25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works).

  Granted Conditions Extension Demolition 7 docs

• Flat 4, 51 Onslow Square, London, SW7 3LR

  LB/26/02270 Submitted 17 Apr 2026 0m away

  96% historically approved · decision due ~12 Jun

  Internal alterations to existing bathrooms, creation of a laundry room and associated alterations.

  Awaiting decision Heritage and listed buildings 21 docs

• Flat 3, 55 Onslow Square and 57 Onslow Square, London, SW7 3LR

  CON/26/01253 Submitted 9 Jan 2026 0m away

  Details required by Condition 3 (submission of details - a) elevation (1:10) and section (1:5) drawings of new external doors and architraves with details of mouldings in section (1:1). New doors shall be made of solid timber and hand painted, unless otherwise specified in the approved drawings) of Listed Building consent LB/25/02622 (Part demolition to allow erection of orangery, lower ground rear extension, introduction of AC units and internal works)

  Granted Conditions Extension Demolition 13 docs

• LB/26/03098 Granted

  14 Holland Street, London, W8 4LT

  Removal on non-original furniture, fixtures and fittings. Installation of new coffee shop to include new floor finish over existing screed floor (floor boards retained), new light fittings, new coffee counter, plumbing and services. Limited refurbishment to shop front such as painting and new sign in place of existing.

  Received 10 Jun, published by the council 20 Jul 2026 Heritage and listed buildings
• LB/26/02918 Granted

  220 and 222 Earl's Court Road, London, SW5 9QA

  Proposed installation of roof top plant and internal alterations

  Received 2 Jun, published by the council 20 Jul 2026 Heritage and listed buildings
• 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.

  Received 26 May, published by the council 1 Aug 2026 Heritage and listed buildings
• LB/26/02366 Withdrawn

  10 Palace Gate, London, W8 5NF

  Replacement of exsiting defective internal rainwater downpipe.(Retrospective Application)

  Received 27 Apr, published by the council 20 Jul 2026 Heritage and listed buildings
• 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.

  Received 20 Apr, published by the council 20 Jul 2026 Heritage and listed buildings