1 Parliament Street London SW1A 2NE

This site has had 2 applications since 2026.

• 26/06875/FULL Awaiting decision

  1 Parliament Street London SW1A 2NE

  Alterations to the existing Colonnade at 1 Parliament Street, including installation of infill structures within the Colonnade arches, relocation of the frontage to the Colonnade line, associated internal alterations, stone repair and cleaning works, and associated ancillary works. (Linked with 26/06876/LBC)

  Submitted 8 Oct 2026 Full applications

1. 8 Oct 2026

   Received by Westminster

2. 12 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 3 December 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.

1 later application on the register refers to this one:

• 26/06875/FULL Awaiting decision

  1 Parliament Street London SW1A 2NE

  Alterations to the existing Colonnade at 1 Parliament Street, including installation of infill structures within the Colonnade arches, relocation of the frontage to the Colonnade line, associated internal alterations, stone repair and cleaning works, and associated ancillary works. (Linked with 26/06876/LBC)

  Submitted 8 Oct 2026 Full applications

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 119 days. More in our guide to how long planning decisions take.

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.

• Parliamentary Estate Parliament Street London SW1A 2NU

  26/05113/NMA Submitted 29 Jul 2026 50 yards away

  93% historically approved · decision due ~23 Sep

  Amendments to planning permission dated 17 July 2026 (RN: 26/03093/FULL) for excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03094/LBC); NAMELY, to reposition and alter six trial trenches.

  Decided Amendments

• 1 Parliament Street London SW1A 2NE

  26/06875/FULL Submitted 8 Oct 2026 50 yards away

  88% historically approved · decision due ~3 Dec

  Alterations to the existing Colonnade at 1 Parliament Street, including installation of infill structures within the Colonnade arches, relocation of the frontage to the Colonnade line, associated internal alterations, stone repair and cleaning works, and associated ancillary works. (Linked with 26/06876/LBC)

  Awaiting decision Full applications Extension

• Parliamentary Estate Parliament Street London SW1A 2NU

  26/02699/FULL Submitted 23 Apr 2026 50 yards away

  88% historically approved · decision due ~18 Jun

  Installation of a borehole and associated works, including plant and pipework, with internal basement alterations and temporary works (Linked to 26/02700/LBC)

  Awaiting decision Full applications 1 doc

• Parliamentary Estate Parliament Street London SW1A 2NU

  26/02700/LBC Submitted 23 Apr 2026 50 yards away

  90% historically approved · decision due ~18 Jun

  Installation of a borehole and associated works, including plant and pipework, with internal basement alterations and temporary works (Linked to 26/02699/FULL)

  Awaiting decision Heritage and listed buildings 1 doc

• Parliamentary Estate Parliament Street London SW1A 2NU

  26/03093/FULL Submitted 11 May 2026 50 yards away

  88% historically approved · decision due ~6 Jul

  Excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03094/LBC)

  Awaiting decision Full applications 5 docs

• Parliamentary Estate Parliament Street London SW1A 2NU

  26/03094/LBC Submitted 11 May 2026 50 yards away

  90% historically approved · decision due ~6 Jul

  Excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03093/FULL)

  Awaiting decision Heritage and listed buildings 3 docs

• 26/07202/LBC Awaiting decision

  Basement East And Ground Floor And First Floor 33 Weymouth Street London W1G 7BY

  Replacement of 13 doorsets with fire doors.

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
• 26/07183/LBC Awaiting decision

  306 - 308 Regent Street London W1B 3AT

  Installation of a manually operated retractable fabric awning to the existing shopfront at 308 Regent Street, comprising an orange fabric canopy with discreet printed lettering to the front valance, together with associated supporting framework, mounting brackets and fixings to the existing fa?ade.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
• 26/07191/LBC Awaiting decision

  6 Wilton Place London SW1X 8RH

  Layout alterations and replacement of internal doors.

  Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
• 26/07199/LBC Awaiting decision

  49 Queen's Gardens London W2 3AA

  Erection of a mansard roof extension incorporating rooflights and a rear balcony; installation of Juliet balconies at ground and first floor levels to the rear; demolition of the existing courtyard extension and erection of a single-storey infill extension; extension of the rear wing at first floor (mezzanine) and second floor levels; fenestration alterations including the installation of new windows; stucco repairs and partial rebuilding of the rear extensions; and associated internal alterations at all levels. (Linked to 26/07198/FULL)

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
• 26/07192/LBC Awaiting decision

  119 Warwick Way London SW1V 4HS

  Conversion and internal alterations to the ground floor flat (Retrospective)

  Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings