Planning application
15 St Leonard's Terrace, London, SW3 4QG
Works: Extension Windows or glazing
Relates to PP/25/05025
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
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
Application record
- Reference
- NMA/26/02335
- Type
- Non-Material Amendments
- Status
- Decided
- Decision
- Accept Non-Material Amendment(s)
- Received
- 22 Apr 2026
- Decided
- 29 Jun 2026
- Ward
- Royal Hospital
- Parish
- 16
- Postcode
- SW3 4QG
Site history
Applications at this address on the Kensington and Chelsea register
This site has had 4 applications since 2025: 3 approved, 0 refused.
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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.
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CON/25/05064 Granted
15 St Leonard's Terrace, London, SW3 4QG
Discharge part b) of condition 3 of LB/25/03887 on the basis that the details were already discharged under CON/24/05804 (approved 22/10/24). These details were also annotated on the approved drawings for LB/25/03887 `as approved'. i.e., `Dekton solid porcelain cladding to extension roof form and facade Colour: Domoos [Black] As approved.' Please refer to the previous approval for the rear extension material details
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PP/25/05025 Granted
15 St Leonard's Terrace, London, SW3 4QG
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.
Timeline
Dates from the published record
-
22 Apr 2026
Received by Kensington and Chelsea
-
29 Jun 2026
Decision issued: Accept Non-Material Amendment(s)
-
1 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
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PP/25/05025 Granted
15 St Leonard's Terrace, London, SW3 4QG
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.
Documents
Plans, drawings, consultee responses and the officer's report
10 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 documentsAfter the decision
Kensington and Chelsea has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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
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24 St Leonard's Terrace, London, SW3 4QG
96% historically approved · decision due ~16 Sep
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
Awaiting decision Heritage and listed buildings Extension 11 docs -
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
Granted Heritage and listed buildings Extension Loft or dormer +1 49 docs -
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
Granted Full applications Extension Loft or dormer +1 52 docs -
29 St Leonard's Terrace, London, SW3 4QG
Prune 1 x Magnolia (front) and 1 x Ginkgo/Maidenhair (rear)
Granted Trees 7 docs -
19 St Leonard's Terrace, London, SW3 4QG
Details required by Condition 3 (Submission of details) of Listed Building Consent LB/20/00855 (Construction of full width rear extension at basement level. Removal of metalwork stair and balcony. Window alterations on rear elevation. Addition of mansard roof extension. Alterations to interior layout. Retention of internal panelled doors, stair and balustrade)
Granted Conditions Extension Loft or dormer +1 11 docs -
Other amendment 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