Planning application
NMA/26/01011
30 Pembridge Crescent and 3 Portobello Mews, London, W11 3DS
Proposal
Non-material amendment to planning permission Ref. PP/22/01420 dated 09th September 2022 [Variation of condition 2 (compliance with approved drawings) of planning permission ref. PP/14/07745 to allow retention of east flank wall utilising blind windows; to allow use of mechanical ventilation louvres to front entrance roof and east elevation; to allow a revised mews facade, addition of basement level 1 mezzanine and second floor mezzanine with revised roof plan, and revised internal layout including feature stair] to allow internal layout alterations: simplification of the design, including removal of mezzanine floors (reducing the proposed GIA by 59 sqm - back to the size of the original July 2014 permission) and introduction of a more traditional main staircase arrangement; revised ground floor level for the central section; and rearrangement of internal partitions
As published by the council, reference NMA/26/01011
Timeline
Dates from the published record
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30 Mar 2026
Received by Kensington and Chelsea
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6 May 2026
Decision issued: Accept Non-Material Amendment(s)
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20 Jul 2026
Added to PlanIndex
After the decision
The process from here
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.
About amendments applications
How this application type works
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.
Nearby applications
Within 500 metres
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PP/26/01968 Granted
Flat 3, 22 Pembridge Crescent, London, W11 3DS
Widening of the existing rear third floor opening, replacement of two existing French door sets with three traditionally detailed painted timber door sets, and installation of an extract grille to the side elevation.
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ARB/25/06206 Granted
24 Pembridge Crescent, London
Prune 3 x Lime (front)
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PP/25/06751 Granted
Flat 3, 23 Pembridge Crescent, London, W11 3DS
Installation of 2no. air conditioning condensers on the flat roof above Flat 3 basement floor, within the gap between Nos 23 and 22
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PP/25/05488 Granted
34 Portobello Road, London, W11 3DH
Replacement of two rear windows
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PP/26/02662 Granted
2A-2E Pembridge Crescent, London, W11 3DT
Wholesale replacement of existing windows and rear door throughout the property. The existing timber single-glazed window units are to be replaced with new heritage style timber double-glazed sash window units and timber double-glazed casement window units. The single-glazed timber rear door is to be renewed in timber with double-glazed viewing pane
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PP/25/06179 Granted
Flat E, 8 Pembridge Crescent, London, W11 3DT
Installation of an air conditioning unit to the roof terrace and all associated works
Other amendments applications
In Kensington and Chelsea
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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)
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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.
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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.)
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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.
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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