Planning application
NMA/26/02335
15 St Leonard's Terrace, London, SW3 4QG
Proposal
Non-material amendment to planning permission PP/25/05025 (Variation of Condition 2 (Compliance with approved drawings) of planning permission PP/21/05028 (Alterations at rear including extension at lower ground level; extension at ground floor level; creation of green wall; replacement of window with door at first floor level, alterations at front including installation of glazed fanlight and glazing bar, entrance light, house number and replacement of railings and gate with spear heads. Internal alterations including lowering at lower ground floor level and reconfiguration of layout) for alterations to consented scheme in response to changes required following design and interior design input) to incorporate alterations to lower ground floor, addition of new ground floor doorbell following relocation of w/c.
As published by the council, reference NMA/26/02335
Timeline
Dates from the published record
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22 Apr 2026
Received by Kensington and Chelsea
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29 Jun 2026
Decision issued: Accept Non-Material Amendment(s)
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1 Aug 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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LB/26/03994 Awaiting decision
24 St Leonard's Terrace, London, SW3 4QG
Lowering floor level within storage space, formation of opening between vault and storage space to provide internal access, extension of entrance step at ground floor level
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LB/24/05775 Granted
16 St Leonard's Terrace, London, SW3 4QG
Replacement windows and doors, remodelling of rear extension to form garden room with projecting bay and bifold doors, creation of glazed connection to garden room, new glazed rooflight and removal of perimeter roof lights and railings, creation of spiral wine cellar and external electric charging point
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PP/24/05774 Granted
16 St Leonard's Terrace, London, SW3 4QG
Replacement windows and doors, remodelling of rear extension to form garden room with projecting bay and bifold doors, creation of glazed connection to garden room, new glazed rooflight and removal of perimeter roof lights and railings, creation of spiral wine cellar and external electric charging point
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ARB/24/06731 Granted
29 St Leonard's Terrace, London, SW3 4QG
Prune 1 x Magnolia (front) and 1 x Ginkgo/Maidenhair (rear)
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ARB/26/01020 Granted
25 St Leonard's Terrace, London, SW3 4QG
Prune 1 x Horse Chestnut (front)
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LB/26/02161 Granted
15 St Leonard's Terrace, London, SW3 4QG
Listed building consent for internal and minor external alterations including revisions to the laundry and W/C layout at lower ground floor, new cable route for doorbell installation at ground floor, new W/C and steps within the closet wing with removal of brickwork nib and installation of a wall-mounted LED light at first floor, and change of use of a consented bathroom to a study at second floor level.
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