1 Chiltern Street London W1U 7PA
Approved on 3 June 2026
Proposal
Removal of areas of fire and water damaged plasterwork internally. Temporary removal of laths at third floor level.
- Received
- 18 March 2026
- Council
- City of Westminster
- Ward
- Marylebone
- Agent
- Donald Insall Associates
- ReceivedReceived18 Mar
- ValidatedValidated18 Mar
- Consult.Consultation
- TargetTarget Date13 May
- DecidedDecided3 Jun
Decided in 77 days (council typically 49)
About this application
This is a heritage application at 1 Chiltern Street London W1U 7PA. Westminster has handled 2,677 applications of this type. This one was decided in 77 days, 4 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 13 listed buildings nearby. There have been 6 other applications at this address. In the past year there have been 171 applications across Marylebone. We hold 1,070 applications in total for the W1U postcode area.
93% of heritage 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
- W1U 7PA
- Application type
- Listed Building Consent Application
- Scale / size
- Small
Planning application dates
- Date validated
- 18 March 2026
- Target decision date
- 13 May 2026
Applicant and agent
- Agent
- Donald Insall Associates
- Architect profile
- DONALD INSALL ASSOCIATES LIMITED
- Agent address
- 12 Devonshire Street London W1G7AB United Kingdom
Planning decision
- Statutory period
- 56 days
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Portman Estate
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- 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 2026-11-03. 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.
Planning history at this site
9 other applications at this property, newest first.
- 202616 Oct
Minor internal alterations
PendingListed building consent26/07114/LBC - 202614 Aug
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to…
PendingListed building consent26/05545/LBC - 202614 Aug
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to…
PendingApplication26/05544/FULL - 202612 Aug
Infill of arrow slit window in north gable; conversion of existing fanlight to louvres; modifications to…
ApprovedListed building consent26/05485/LBC - 202612 Aug
Amendments to planning permission dated 28th February 2025 (RN: 23/02315/FULL
ApprovedNon-material amendment26/05305/NMA - 202611 Aug
Minor internal structural repairs to cracked walls at First Floor (Level 1) and Second Floor (Level 2).
ApprovedListed building consent26/05300/LBC - 202616 Jun
Alterations to steelwork at fourth floor level.
ApprovedListed building consent26/03972/LBC - 202523 Jul
Reinstatement of roof structure, roof finishes and plant following fire on 14.02.25
ApprovedListed building consent25/05136/LBC - 202510 Jul
Removal and replacement of all remaining pugging to 1st and 2nd floor soffits to facilitate the drying out of…
ApprovedListed building consent25/04762/LBC
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 41 Manchester Street London W1U 7LN26/01813/ADLBC · ConditionsRefused0.0 mi
- 41 Manchester Street London W1U 7LN26/01966/ADLBC · ConditionsRefused0.0 mi
- Ground Floor 32 Chiltern Street London W1U 7QQ26/00867/ADV · AdvertisingApproved0.0 mi
- 44 Manchester Street London W1U 7LR24/04921/LBC · HeritageAwaiting decision0.0 mi
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For applicants and trades
Contractors near this project
Find contractors for demolition near this site- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman0.7 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing0.9 mi
- Orient Construction Consultancy LimitedVerifiedLondon4.1 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering5.6 mi
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