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Planning application

55 Cornwall Crescent, London, W11 1PJ

Refused Kensington and Chelsea NMA/26/00894 Non-Material Amendments

Works: Extension Loft or dormer Windows or glazing

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Non-material amendment to planning permission 24/04763 to allow reduction to the extent of the lower ground floor rear extension; remove two rooflights and replace with glazing to edge of roof; removal of non-original window, enlarge opening and replace with new timber sash window to match

As published by the council, reference NMA/26/00894

Application record

Reference
NMA/26/00894
Type
Non-Material Amendments
Status
Decided
Decision
Reject Non-Material Amendment(s)
Received
9 Mar 2026
Decided
3 Apr 2026
Ward
Norland
Parish
11
Postcode
W11 1PJ

Site history

Applications at this address on the Kensington and Chelsea register

This site has had 4 applications since 2024: 1 approved, 1 refused.

  • 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

    Submitted 26 May 2026 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.

    Decided 1 Jul 2026 Amendments
  • 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.

    Decided 1 Nov 2024 Full applications

Timeline

Dates from the published record

  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

Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What this refusal means

Kensington and Chelsea refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About amendment applications

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 41-43 Cornwall Crescent, London, W11 1PJ

    PP/26/02663 Submitted 13 May 2026 0m away

    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

    Granted Full applications Windows or glazing 30 docs
  • 55 Cornwall Crescent, London, W11 1PJ

    NMA/26/02410 Submitted 26 Apr 2026 0m away

    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.

    Decided Amendments Extension Loft or dormer +1 9 docs
    Small domestic
  • 67 Cornwall Crescent, London, W11 1PJ

    ARB/21/04082 Submitted 21 Jun 2021 0m away

    FELL 1x Poplar at rear

    Granted 11 docs
  • 55 Cornwall Crescent, London, W11 1PJ

    PP/24/04763 Submitted 11 Jul 2024 0m away

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

    Granted Full applications Extension 20 docs
    Small domestic
  • 55 Cornwall Crescent, London, W11 1PJ

    PP/26/02800 Submitted 26 May 2026 0m away

    94% historically approved · decision due ~21 Jul

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

    Awaiting decision Full applications Windows or glazing 15 docs
  • Basement Flat, 57 Cornwall Crescent, London, W11 1PJ

    PP/26/02081 Submitted 7 Apr 2026 0m away

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

    Granted Full applications Extension 34 docs

In Kensington and Chelsea

  • 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