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3 Wilton Row London SW1X 7NR

25/06783/FULLFull Planning Permission ApplicationApproved
Full

Approved on 19 February 2026

Site boundary (council red line)

Proposal

Internal enlargement of existing lower ground floor and alterations to existing lightwell

Received
22 September 2025
Ward
Knightsbridge & Belgravia
Agent
Cranbrook Basement Design and Construction Ltd
  1. Received22 Sep
  2. Validated22 Sep
  3. Consult.
  4. Target17 Nov
  5. Decided19 Feb

Decided in 150 days (council typically 49)

About this application

This is a full planning application at 3 Wilton Row London SW1X 7NR. Westminster has handled 4,484 applications of this type. This one was decided in 150 days, 14 weeks longer than Westminster's typical decision time. The site is in the Belgravia conservation area, with 8 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 380 applications across Knightsbridge & Belgravia. We hold 1,288 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.Planning something similar? See what gets approved on your street

Application details

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

Planning application dates

Date validated
22 September 2025
Consultation expiry
29 October 2025
Target decision date
17 November 2025

Applicant and agent

Agent
Cranbrook Basement Design and Construction Ltd
Agent address
732 Cranbrook Road Ilford IG6 1HU United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
8 October 2025
Advertisement expiry
29 October 2025

Additional information

Planning Portal ID
PP-14336035
Comments
0
Documents
17

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Belgravia
  • 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
    22 Sep

    Internal enlargement of existing lower ground floor and alterations to existing lightwell

    This applicationApprovedFull25/06783/FULL
  2. 2025
    22 Sep

    Variation of condition 1 of planning permission dated 01 October 2024 (RN24/03484/FULL

    ApprovedVariation of conditions (s73)Filed alongside25/06784/FULL

Source: Westminster

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

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