18-20 Huntsworth Mews London NW1 6DD
Proposal
Use of second floor as residential flat (Class C3) and associated external alterations.
- Received
- 2 December 2023
- Decided
- 15 March 2024 · Application Permitted
- Decision level
- Delegated (officer decision)
- Council
- City of Westminster
- Ward
- Regent's Park
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.
- ReceivedSubmitted2 Dec
- ValidatedValidated2 Dec
- Consult.Consultation
- TargetTarget Date27 Jan
- DecidedDecided15 Mar
Decided in 104 days (council typically 49)
This is a full planning application at 18-20 Huntsworth Mews London NW1 6DD. Westminster has handled 4,496 applications of this type and approves 85% of them, typically deciding them in 74 days. This one was decided in 104 days, 4 weeks longer than Westminster's median. The site is in the Dorset Square conservation area, with 18 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 141 applications across Regent's Park. We hold 3,114 applications in total for the NW1 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202417 Jul
Amendments to planing permission dated 15 March 2024 (RN:23/08343/FULL
PendingNon-material amendmentAmendment24/04857/NMA - 20232 Dec
Use of second floor as residential flat (Class C3) and associated external alterations.
This applicationApprovedFull23/08343/FULL
Planning history at this site
3 other applications at this property, newest first.
- 202417 Jul
Details of arrangements to secure measures to mitigate the potential increased demand for on-street residents…
PendingDischarge of conditions24/04855/ADFULL - 202417 Jul
Amendments to planning permission dated 21 June 2024 (RN: 24/02832/FULL
PendingNon-material amendment24/04858/NMA - 202430 Apr
Use of first floor as residential flat (Class C3) and associated external alterations.
ApprovedFull Planning Permission Application24/02832/FULL
Planning constraints
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 (21)
flood storage areas, 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 2026-10-09. 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.
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