NMA/26/00894

1. 9 Mar 2026

   Received by Kensington and Chelsea

2. 3 Apr 2026

   Decision issued: Reject Non-Material Amendment(s)

3. 20 Jul 2026

   Added to PlanIndex

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.

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

• PP/26/02663 Granted

  41-43 Cornwall Crescent, London, W11 1PJ

  Replacement of single-glazed timber windows throughout with new double glazed timber sliding sash and rear door to match the style, profile, character, and aesthetic of the existing

  13 May 2026 0m away Full applications
• NMA/26/02410 Decided

  55 Cornwall Crescent, London, W11 1PJ

  Non-material amendment to planning permission PP/24/04763 (Single storey rear extension, bike store and planter to the frontage and other associated works) to reduce the depth of the rear extension and replacement of 2x roof lights with glazing to the roof.

  26 Apr 2026 0m away Amendments
• ARB/21/04082 Granted

  67 Cornwall Crescent, London, W11 1PJ

  FELL 1x Poplar at rear

  21 Jun 2021 0m away
• PP/24/04763 Granted

  55 Cornwall Crescent, London, W11 1PJ

  Single storey rear extension, bike store and planter to the frontage and other associated works.

  11 Jul 2024 0m away Full applications
• PP/26/02800 Awaiting decision

  55 Cornwall Crescent, London, W11 1PJ

  Existing ground floor window to rear elevation to be removed and opening enlarged and new window installed to match existing

  26 May 2026 0m away Full applications
• PP/26/02081 Granted

  Basement Flat, 57 Cornwall Crescent, London, W11 1PJ

  Partial retention of, and alterations to lower ground floor rear extension.

  7 Apr 2026 0m away Full applications

• 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