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25 Princes Gate London SW7 1PT

26/05136/NMAApproved

Approved on 2 October 2026

Site boundary (council red line)

Proposal

Amendments to planning permission dated 22 July 2026 (RN: 26/01459/FULL) for excavation of a basement beneath the footprint of lower ground floor, internal and external refurbishment and restoration, and associated works; NAMELY replacement of selected external doors, windows, modern concrete structures and non-original roof finishes, with associated waterproofing, drainage and minor internal layout amendments to the 3rd and 4th floor front suites.

Submitted
30 July 2026
  1. Received30 Jul
  2. Validated
  3. Consult.
  4. Target
  5. Decided2 Oct

Decided in 64 days

About this application

This is a planning application for window replacement at 25 Princes Gate London SW7 1PT. Westminster has handled 27,108 applications of this type. This one was decided in 64 days, 2 weeks longer than Westminster's typical decision time. The site is in the Knightsbridge conservation area, with 3 listed buildings nearby. There have been 3 other applications at this address. We hold 1,522 applications in total for the SW7 postcode area.

Application details

Postcode
SW7 1PT

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Knightsbridge
  • Listed building: 26-31 PRINCES GATE London SW7 1QQOn or next to this site · +1 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref W27Part of 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: Westminster

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

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