1 Chiltern Street London W1U 7PA

This site has had 9 applications since 2025: 1 approved, 0 refused.

• 26/07114/LBC Awaiting decision

  1 Chiltern Street London W1U 7PA

  Minor internal alterations

  Submitted 16 Oct 2026 Heritage and listed buildings
• 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)

  Submitted 14 Aug 2026 Heritage and listed buildings
• 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.

  Submitted 12 Aug 2026 Heritage and listed buildings
• 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.

  Submitted 5 Aug 2026 Amendments
• 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).

  Submitted 5 Aug 2026 Heritage and listed buildings
• 26/03972/LBC Decided

  1 Chiltern Street London W1U 7PA

  Alterations to steelwork at fourth floor level.

  Submitted 16 Jun 2026 Heritage and listed buildings
• 26/01760/LBC Awaiting decision

  1 Chiltern Street London W1U 7PA

  Removal of areas of fire and water damaged plasterwork internally. Temporary removal of laths at third floor level.

  Submitted 18 Mar 2026 Heritage and listed buildings
• 25/05136/LBC Granted

  1 Chiltern Street London W1U 7PA

  Reinstatement of roof structure, roof finishes and plant following fire on 14.02.25

  Decided 4 Sep 2025 Heritage and listed buildings

1. 14 Aug 2026

   Received by Westminster

2. 22 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 October 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 86 days over the applications it decided in the last year.

• 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)

  Submitted 14 Aug 2026 Heritage and listed buildings

1 later application on the register refers to this one:

• 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)

  Submitted 14 Aug 2026 Heritage and listed buildings

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 1 Chiltern Street London W1U 7PA

  26/05305/NMA Submitted 5 Aug 2026 50 yards away

  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

  26/05545/LBC Submitted 14 Aug 2026 50 yards away

  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

  26/05485/LBC Submitted 12 Aug 2026 50 yards away

  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

  26/07114/LBC Submitted 16 Oct 2026 50 yards away

  90% historically approved · decision due ~11 Dec

  Minor internal alterations

  Awaiting decision Heritage and listed buildings

• 1 Chiltern Street London W1U 7PA

  26/03972/LBC Submitted 16 Jun 2026 50 yards away

  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

  26/05300/LBC Submitted 5 Aug 2026 50 yards away

  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

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications