Planning application
NMA/26/00931
Flat A, 32 Powis Square, London, W11 2AY
Proposal
Non-material amendment to planning permission PP/25/02606 to replace the 2.2m wide aluminium sliding doors and timber sash window to rear lower ground floor elevation with 2 sets of 1.2m wide timber French doors; add a 1.5m (L) x 1m (W) lantern rooflight to the new portion of flat roof; relocate external lightwell staircase to sit tight against finished lightwell wall on the RHS, allowing for construction of a new planter; and adjust the garden studio size (reducing the width to 5.5m externally) and design.
As published by the council, reference NMA/26/00931
Timeline
Dates from the published record
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9 Mar 2026
Received by Kensington and Chelsea
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16 Apr 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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CON/25/05080 Granted
Flat A, 32 Powis Square, London, W11 2AY
Details required by condition 6 (Flood Risk Assessment/Sustainable Drainage Systems Strategy) of planning permission 25/02606 (Lower ground floor rear infill extension & new lightwell; installation of 1no. sliding door to rear elevation; installation of 1no. window to rear elevation to match existing; installation of new external staircase to rear private garden; erection of new garden studio to the end of rear private garden; internal and external alterations and some demolition to facilitate the works).
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PP/26/01893 Granted
Flat 16A, Hedgegate Court, Powis Terrace, London, W11 1JD
The installation of replacement windows and doors to the front and rear elevations.
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PP/26/02979 Granted
4 Powis Gardens, London, W11 1JG
Replacement windows and rear door with timber slimline double-glazed sash window units, casement window units and double glazed rear door.
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PP/21/03233 Refused
4-5 Powis Mews, London, W11 1JN
Covering of existing roof terrace with a glass structure.
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CL/25/06909 Granted
Third Floor, 17 Powis Mews, London, W11 1JN
Installation of Air Source Heat Pump to replace existing electrical hot water heating system (Certificate of Lawful Proposed Development/Use).
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CL/25/06815 Awaiting decision
Third Floor, 17 Powis Mews, London, W11 1JN
Replacement of existing electrical hot water heating system for an air source heat pump. (Certificate of Proposed Development/Use)
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