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14 Wilton Street London SW1X 7AF

25/07927/FULLFull Planning Permission ApplicationApproved
Full

Approved on 11 February 2026

Site boundary (council red line)

Proposal

Alterations including infill extensions at basement and ground floor to the rear of premises and glazed rooflight above ground floor extension.

Received
31 October 2025
Ward
Knightsbridge & Belgravia
Agent
AHA - Alexander Hobbs Associates
  1. Received31 Oct
  2. Validated31 Oct
  3. Consult.
  4. Target26 Dec
  5. Decided11 Feb

Decided in 103 days (council typically 49)

About this application

This is a full planning application for an extension at 14 Wilton Street London SW1X 7AF. Westminster has handled 4,484 applications of this type. This one was decided in 103 days, 8 weeks longer than Westminster's typical decision time. The site is in the Belgravia conservation area, with 11 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 383 applications across Knightsbridge & Belgravia. We hold 1,285 applications in total for the SW1X postcode area.

86% of full applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
SW1X 7AF
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
31 October 2025
Target decision date
26 December 2025

Applicant and agent

Agent
AHA - Alexander Hobbs Associates
Agent address
4 Heads Mews London W11 2QL United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14454728
Comments
0
Documents
14

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Belgravia
  • Listed building: 4-15 WILTON STREET London SW1X 7AFOn or next to this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, listed buildings, tree preservation orders, 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.

Associated applications

  1. 2025
    31 Oct

    Alterations including infill extensions at basement and ground floor to the rear of premises and glazed…

    This applicationApprovedFull25/07927/FULL
  2. 2025
    31 Oct

    Alterations including infill extensions at basement and ground floor to the rear of premises and glazed…

    ApprovedListed building consentFiled alongside25/07928/LBC

Source: Westminster

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

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