Fourth And Fifth Floor Flat, 50 Cadogan Square, London, SW1X 0JW
Proposal
A fifth-floor rear extension including aluminium framed double glazed sliding doors with concealed external shutters; installation of air source heat pump; replacement windows and glazing; re-paving of fourth and fifth floor level roof terraces; replacement railings; addition of timber screening; installation of roof insulation and replacement roof covering; associated internal and external alterations at fourth and fifth floor levels including new finishes and custom fitted joinery
- Received
- 11 September 2026
- Target decision date
- 4 November 2026
- Ward
- Brompton and Hans Town
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.
- ReceivedSubmitted11 Sep
- ValidatedValidated2 Oct
- Consult.Consultation2 Oct
- TargetTarget Date4 Nov
- DecidedDecided
This is a planning application for a rear extension at Fourth And Fifth Floor Flat, 50 Cadogan Square, London, SW1X 0JW. Kensington has handled 16,719 applications of this type and approves 90% of them, typically deciding them in 56 days. It was submitted on 11 September 2026 and is still awaiting a decision. The site is in a conservation area, with 12 listed buildings nearby. There has been 1 other application at this address. We hold 1,157 applications in total for the SW1X 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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Associated applications
- 202611 Sep
A fifth-floor rear extension including aluminium framed double glazed sliding doors with concealed external…
PendingApplicationFiled alongsideLB/26/04657 - 202611 Sep
A fifth-floor rear extension including aluminium framed double glazed sliding doors with concealed external…
This applicationPendingApplicationPP/26/04656
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Hans Town
- 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.
Before the decision
You may need a heritage statement. Heritage & archaeology consultants near this site
A listed building is on or next to this site.
- 1.4 miLondonRTPI
- 1.5 miLondonRTPIRICS Regulated
- 1.8 miLONDONRTPI
Nearest first, within 25 miles of the site. Every firm is listed free.
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