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3 - 9 Huntsworth Mews London NW1 6DE

21/02855/P3JPAPrior Approval Offices to Dwellings(OTR)Approved
Outline / PiP

Approved on 22 June 2021

Council decision: Prior Approval ApprovedDelegated (officer decision)

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

Notification for prior approval of the change of use of ground floor from offices (Class B1(a)) to 1x2 bedroom residential unit (Class C3) under The Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) - Schedule 2, Part 3, Class O.

Received
29 April 2021
Decision level
Delegated (officer decision)
Ward
Bryanston And Dorset Square
Agent
Forward Planning and Development Ltd
  1. Received29 Apr
  2. Validated29 Apr
  3. Consult.
  4. Target23 Jun
  5. Decided22 Jun

Decided in 54 days (council typically 49)

About this application

This is an outline application for a change of use at 3 - 9 Huntsworth Mews London NW1 6DE. Westminster has handled 218 applications of this type. This one was decided in 54 days, 5 days longer than Westminster's typical decision time. The site is in the Dorset Square conservation area, with 7 listed buildings nearby. There has been 1 other application at this address. We hold 3,181 applications in total for the NW1 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
NW1 6DE
Application type
Prior Approval Offices to Dwellings(OTR)
Scale / size
Small

Planning application dates

Date validated
29 April 2021
Consultation expiry
2 June 2021
Target decision date
23 June 2021

Applicant and agent

Agent
Forward Planning and Development Ltd
Agent address
The Studio@The Old Farmhouse 29 Banbury Road Chacombe OX17 2JN

Planning decision

Statutory period
55 days

Publicity

Last advertised
12 May 2021
Advertisement expiry
2 June 2021

Additional information

Planning Portal ID
PP-09786599
Comments
0
Documents
18

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Dorset Square
  • 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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