Planning application
1 Chiltern Street London W1U 7PA
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Removal of areas of fire and water damaged plasterwork internally. Temporary removal of laths at third floor level.
As published by the council, reference 26/01760/LBC
Application record
- Reference
- 26/01760/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 18 Mar 2026
- Validated
- 18 Mar 2026
- Ward
- Marylebone
- Postcode
- W1U 7PA
Site history
Applications at this address on the Westminster register
This site has had 8 applications since 2025: 1 approved, 0 refused.
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26/05544/FULL Awaiting decision
1 Chiltern Street London W1U 7PA
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to roof and installation of a pressurised stair system. (Linked with 26/05545/LBC)
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26/05545/LBC Awaiting decision
1 Chiltern Street London W1U 7PA
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to roof (maintenance use) and installation of a pressurised stair system. (Linked with 26/05544/FULL)
-
26/05485/LBC Decided
1 Chiltern Street London W1U 7PA
Infill of arrow slit window in north gable; conversion of existing fanlight to louvres; modifications to doors; internal alterations to amalgamate bedrooms 17 & 18 and to relocate function room to north-east corner of basement.
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26/05305/NMA Decided
1 Chiltern Street London W1U 7PA
Amendments to planning permission dated 28th February 2025 (RN: 23/02315/FULL) for, "Use of the fire station as a 26 bed hotel (Class C1). Demolition of part of the existing building at the rear, including demolition of enclosures in the ground floor and basement courtyards and demolition of the steel practice tower. Erection of a part three and five-storey wing to main building. Excavation of courtyard to create basement level accommodation, including plant room. Rear extensions to main building. External and internal alterations"; Namely, infill of existing arrow slit window in north gable, new dishwasher extract/louvres onto Broadstone Place, new internal floorplans to reflect enlarged doorways and escape routes and the reversing of a doorway onto Chiltern Street for service access, amendments to description of development to state up to 26 bedrooms and alterations to basement layout and use to include relocation of ground floor function room.
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26/05300/LBC Decided
1 Chiltern Street London W1U 7PA
Minor internal structural repairs to cracked walls at First Floor (Level 1) and Second Floor (Level 2).
-
26/03972/LBC Decided
1 Chiltern Street London W1U 7PA
Alterations to steelwork at fourth floor level.
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25/05136/LBC Granted
1 Chiltern Street London W1U 7PA
Reinstatement of roof structure, roof finishes and plant following fire on 14.02.25
Timeline
Dates from the published record
-
18 Mar 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 13 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 65 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Donald Insall Associates Ltd Agent, registered in London
Active · incorporated 1981 · London
185 applications on PlanIndex · across 40 councils · 98% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
13 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 94 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
1 Chiltern Street London W1U 7PA
93% historically approved · decision due ~7 Oct
Amendments to planning permission dated 28th February 2025 (RN: 23/02315/FULL) for, "Use of the fire station as a 26 bed hotel (Class C1). Demolition of part of the existing building at the rear, including demolition of enclosures in the ground floor and basement courtyards and demolition of the steel practice tower. Erection of a part three and five-storey wing to main building. Excavation of courtyard to create basement level accommodation, including plant room. Rear extensions to main building. External and internal alterations"; Namely, infill of existing arrow slit window in north gable, new dishwasher extract/louvres onto Broadstone Place, new internal floorplans to reflect enlarged doorways and escape routes and the reversing of a doorway onto Chiltern Street for service access, amendments to description of development to state up to 26 bedrooms and alterations to basement layout and use to include relocation of ground floor function room.
Decided Amendments Extension Demolition +1 -
1 Chiltern Street London W1U 7PA
87% historically approved · decision due ~9 Oct
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to roof and installation of a pressurised stair system. (Linked with 26/05545/LBC)
Awaiting decision Full applications -
1 Chiltern Street London W1U 7PA
90% historically approved · decision due ~9 Oct
Replacement of rooftop plant and associated screening, switched kitchen extract/supplies, new access hatch to roof (maintenance use) and installation of a pressurised stair system. (Linked with 26/05544/FULL)
Awaiting decision Heritage and listed buildings -
1 Chiltern Street London W1U 7PA
90% historically approved · decision due ~7 Oct
Infill of arrow slit window in north gable; conversion of existing fanlight to louvres; modifications to doors; internal alterations to amalgamate bedrooms 17 & 18 and to relocate function room to north-east corner of basement.
Decided Heritage and listed buildings Extension Windows or glazing -
1 Chiltern Street London W1U 7PA
90% historically approved · decision due ~11 Aug
Alterations to steelwork at fourth floor level.
Decided Heritage and listed buildings -
1 Chiltern Street London W1U 7PA
90% historically approved · decision due ~6 Oct
Minor internal structural repairs to cracked walls at First Floor (Level 1) and Second Floor (Level 2).
Decided Heritage and listed buildings
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Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)
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26/06230/LBC Awaiting decision
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26/06250/LBC Awaiting decision
53 Wimpole Street London W1G 8YH
Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06249/FULL)
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26/06203/LBC Awaiting decision
106 Blandford Street London W1U 8AG
Installation of two roof-mounted anchor posts. (Linked to 26/06202/FULL)