15 St Leonard's Terrace, LONDON, SW3 4QG
Proposal
Details required by Condition 6 (Sustainable Drainage Systems Strategy) of planning permission 21/05028 (Alterations at rear including extension at lower ground level reaching to rear site boundary; extension at ground floor level; creation of green wall on rear boundary; replacement of window with door at first floor level to provide access to inset terrace. 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)
- Received
- 12 February 2025
- Decided
- 8 April 2025
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
- ReceivedSubmitted12 Feb
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided8 Apr
Decided in 55 days (council typically 56)
This is a planning application for an extension at 15 St Leonard's Terrace, LONDON, SW3 4QG. Kensington has handled 626 applications of this type and approves nearly all of them, typically deciding them in 56 days. This one was decided in 55 days. The site is in a conservation area, with 11 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 129 applications across Royal Hospital. We hold 1,475 applications in total for the SW3 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Kensington
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Planning history at this site
8 other applications at this property, newest first.
- 20266 Jul
Application to provide additional drawings for LB consent already approved (LB/26/02161
ApprovedApplicationLB/26/03654 - 202622 Apr
Non-material amendment to planning permission PP/25/05025
ApprovedNon-material amendmentNMA/26/02335 - 202614 Apr
Listed building consent for internal and minor external alterations including revisions to the laundry and…
ApprovedListed building consentLB/26/02161 - 202519 Aug
Discharge part b) of condition 3 of LB/25/03887
ApprovedDischarge of conditionsCON/25/05064 - 202514 Aug
15SLT MMA
ApprovedVariation of conditions (s73)PP/25/05025 - 202524 Jun
Non-material amendment to planning permission 21/05028
WithdrawnNon-material amendmentNMA/25/03864 - 202520 Jun
Various external and internal like-for-like replacement and repair works
ApprovedListed building consentLB/25/03887 - 202426 Aug
Details required by Condition 3b (Submission of details - external material for rear extension) of listed…
ApprovedDischarge of conditionsCON/24/05804
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Royal Hospital
- Article 4 direction: Article 4 - No 100
- Tree Preservation OrderCovers the site
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)
flood storage areas, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
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