NMA/25/05520

1. 10 Sep 2025

   Received by Kensington and Chelsea

2. 9 Oct 2025

   Decision issued: Accept Non-Material Amendment(s)

3. 20 Jul 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• CON/23/00894 Refused

  4 Princes Gate Mews, London, SW7 2PS

  Details required by condition 13 (small-scale ground gas and vapour condition) of planning permission 21/06281 (Construction of basement storey. Redesign of loft conversion with enclosed sunken terrace at rear)

  3 Feb 2023 30m away Conditions
• PP/26/01689 Granted

  14 Princes Gate Mews, London, SW7 2PS

  Conversion of existing ground floor garage to habitable accommodation, replacement of all uPVC windows and doors to painted double glazed timber units, addition of three new rooflights, insertion of two new windows to the rear elevation at first floor level and enlargement of existing windows on the rear elevation

  5 Mar 2026 30m away Full applications
• PP/26/01540 Withdrawn

  14 Princes Gate Mews, London, SW7 2PS

  Removal of two air conditioning units from the second floor front terrace and replacement with two new units on the roof within an acoustic enclosure

  4 Mar 2026 30m away Full applications
• PP/26/00775 Granted

  6 Princes Gate Mews, London, SW7 2PS

  Retrospective application for the installation of a rear window at second floor level

  15 Dec 2025 30m away Full applications
• PP/26/02924 Granted

  14 Princes Gate Mews, London, SW7 2PS

  Removal of two air conditioning units from second floor front terrace and replacement with two new units on the roof within an acoustic enclosure

  2 Jun 2026 30m away Full applications
• PP/26/02517 Granted

  23 Princes Gate Mews, London, SW7 2PS

  Installation of one air source heat pump unit at roof level, positioned behind the existing parapet

  6 May 2026 30m 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