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97-99 Walton Street, London, SW3 2HP

PP/26/01216Planning PermissionApproved
Full

Approved on 23 June 2026

Council decision: Grant Planning Permission/Consent3 conditions

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

Creation of a rear roof terrace; installation of replacement external access stair; together with associated alterations.

Received
9 January 2026
Ward
Brompton and Hans Town
  1. Received9 Jan
  2. Validated4 Feb
  3. Consult.19 Jun
  4. Target1 Apr
  5. Decided23 Jun

Decided in 139 days (council typically 56)

About this application

This is a full planning application at 97-99 Walton Street, London, SW3 2HP. Kensington has handled 5,404 applications of this type. This one was decided in 165 days, 16 weeks longer than Kensington's typical decision time. The site is in the Chelsea conservation area, with 1 listed building nearby. There have been 2 other applications at this address. In the past year there have been 364 applications across Brompton and Hans Town. We hold 1,788 applications in total for the SW3 postcode area.

92% of full applications at Royal Borough of Kensington and Chelsea were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
SW3 2HP
Application type
Planning Permission
Scale / size
Medium
Parish
02
District
Chelsea

Planning application dates

Date validated
4 February 2026
Consultation expiry
1 May 2026
Consultation end
19 June 2026
Target decision date
1 April 2026

Planning decision

Case officer
Daniel Ambrose
Statutory period
82 days

Additional information

Documents
12

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Chelsea
  • Article 4 direction: Article 4 - No 100+1 more
  • Tree Preservation OrderCovers the site
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, listed buildings, 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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