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Stone House 9 Weymouth Street London W1W 6DB

26/01145/P3JPAPrior Approval Class E to Dwellings (MA)Approved
Outline / PiP

Approved on 17 April 2026

Council decision: Prior Approval ApprovedDelegated (officer decision)

Site boundary (council red line)

Proposal

Change of use of ground floor of 9 Weymouth Street, a Commercial, Business, Services (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).

Received
24 February 2026
Decision level
Delegated (officer decision)
Public comments
1
Ward
West End
  1. Received24 Feb
  2. Validated24 Feb
  3. Consult.
  4. Target20 Apr
  5. Decided17 Apr

Decided in 52 days (council typically 49)

About this application

This is an outline application for a change of use at Stone House 9 Weymouth Street London W1W 6DB. Westminster has handled 218 applications of this type. This one was decided in 52 days, 3 days longer than Westminster's typical decision time. The site is in the Harley Street conservation area, with 7 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 478 applications across West End. We hold 251 applications in total for the W1W postcode area.

82% of outline 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
W1W 6DB
Application type
Prior Approval Class E to Dwellings (MA)
Scale / size
Small

Planning application dates

Date validated
24 February 2026
Consultation expiry
1 April 2026
Target decision date
20 April 2026

Applicant and agent

Agent
Savills
Agent address
33 Margaret Street London W1G 0JD United Kingdom

Planning decision

Statutory period
55 days

Publicity

Last advertised
11 March 2026
Advertisement expiry
1 April 2026
Site notice start
28 February 2026
Site notice end
21 March 2026

Additional information

Planning Portal ID
PP-14697410
Documents
20

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Harley Street
  • 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.

Source: Westminster

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

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