NMA/26/02020

1. 1 Apr 2026

   Received by Kensington and Chelsea

2. 20 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

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.

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

• ARB/23/01319 Granted

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

  Prune 1 x Lime Tree in rear garden.

  23 Feb 2023 0m away
• 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)

  23 Jan 2026 0m away 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).?

  23 Jan 2026 0m away 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).

  23 Jan 2026 0m away Conditions
• LB/26/02270 Awaiting decision

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

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

  17 Apr 2026 0m away Heritage and listed buildings
• 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)

  9 Jan 2026 0m away Conditions

• NMA/26/04056 Awaiting decision

  10 Kensington Palace Gardens, London, W8 4QP

  Non-material amendment to planning permission PP/24/07201 to allow the reintroduction of an internal swimming pool to the lower ground/ undercroft of the main house, including associated works to internal servicing arrangements and spatial arrangement (including the omission of modern piers put forward under the Second Section 73 Application)

  24 Jul 2026 Amendments
• NMA/26/04001 Awaiting decision

  Land adjoining 2 Horbury Crescent, London, W11 3NF

  Non-material amendment to planning permission PP/23/08263 (Construction of a two-bedroom residential dwelling across ground and basement levels.) relocation of stairs and internal partitions. Changes to rooflights and terrace areas.

  23 Jul 2026 Amendments
• NMA/26/03986 Awaiting decision

  30 Brompton Square, London, SW3 2AE

  Non material amendment to planning permission 26/00660 (Variation of condition 2 (compliance with approved drawings) of planning permission 13/05535 (Redevelopment of lower ground floor in garden, excavation of two basement levels, replacement of glass pavilion, re-landscaping of rear garden and associated alterations) to allow for internal and external alterations to the approved scheme including reconfigured layouts, depths, and floor areas at basement levels 1,2, and 3, alterations to lightwells and introduction of a new lightwell; removal of the secondary staircase in the garden pavilion and the bridge over the rear lightwell and introduction of new york stone stairs at ground floor level; and changes to the lightwell and removal of the bridge at first floor level.) to remove the word 'glass' from the description above; i.e. (Variation of condition 2 (compliance with approved drawings) of planning permission 13/05535 (Redevelopment of lower ground floor in garden, excavation of two basement levels, replacement of pavilion, re-landscaping of rear garden and associated alterations) to allow for internal and external alterations to the approved scheme including reconfigured layouts, depths, and floor areas at basement levels 1,2, and 3, alterations to lightwells and introduction of a new lightwell; removal of the secondary staircase in the garden pavilion and the bridge over the rear lightwell and introduction of new york stone stairs at ground floor level; and changes to the lightwell and removal of the bridge at first floor level.)

  22 Jul 2026 Amendments
• NMA/26/02562 Decided

  Treadgold House, 25 Bomore Road, London, W11 4HD

  Non-material amendment to planning permission PP/23/02367 dated 22 November 2022 (Alterations to existing facades including: installation of new external insulation system, replacement of all existing windows, works to balconies including addition of louvred shading, installation of new ground floor communal external doors and canopy; Alterations at roof level including:removal and replacement of roof system and guarding, construction of new parapet upstand, installation of photovoltaic panels; Replacement of all rainwater goods (amended description).) to allow the addition of a 2100 mm Width x 800 mm Deep x 1600 mm Height GRP white enclosure located to the South Elevation at Ground Floor Level; addition of No3 satellite grey dishes 775mm x 775mm with non-penetrating roof mount 1200mm x 1200mm located on the roof; revised ASHP pipework arrangement; and addition of No3 maintenance access step units (galvanised non-combustible stairs.

  8 May 2026 Amendments
• NMA/26/02178 Withdrawn

  17-19 Cottesmore Gardens, London, W8 5PR

  Non-material amendment to planning permission PP/24/01317 to allow design updates, including revisions to the demolition drawings, removal of planters from non-accessible terraces and modifications to skylights and dry riser inlets

  13 Apr 2026 Amendments