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51 Cadogan Square, LONDON, SW1X 0HY and 150 Pavilion Road, LONDON, SW1X 0AX

CON/25/00128Approval of details reserved by a condition (discharge)Awaiting decision
Discharge / amendments
Approximate site (title boundary)
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.

Proposal

Details required by Conditions 11 (Sound insulation), 15 (Contamination - preliminary risk assessment report and proposed site investigation), 16 (Contamination - Quantitative risk assessment and remediation strategy) and 19 (Flood Risk Assessment and Sustainable Drainage Systems Strategy) of planning permission PP/24/03995 (Internal refurbishment and reconfiguration works including a new lift and extension to fourth floor plus associated alterations at 51 Cadogan Square; construction of single storey basement extension, installation of 2no. new rooflights and modification to the mansard roof at 150 Pavilion Road with associated fenestration works)

Submitted
7 January 2025
  1. Received7 Jan
  2. Validated
  3. Consult.
  4. Target
  5. Decided

About this application

This is a planning application for an extension at 51 Cadogan Square, LONDON, SW1X 0HY and 150 Pavilion Road, LONDON, SW1X 0AX. Kensington has handled 673 applications of this type. It has been with the council since 7 January 2025 and is still awaiting a decision. The site is in a conservation area, with 4 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 362 applications across Brompton and Hans Town.

98% of approval of details reserved by a condition (discharge) applications at Royal Borough of Kensington and Chelsea were approved. Across all application types, the council typically decides in about 8 weeks (median).

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Application details

Application type
Approval of details reserved by a condition (discharge)

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Hans Town
  • Listed building: Grade II: 3-57, Cadogan Square Sw1On or next to this site
  • 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 2026-11-03. 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.

Source: Kensington

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Before the decision

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