10 Buckingham Gate London SW1E 6LA

This site has had 2 applications since 2026.

• 26/06921/FULL Awaiting decision

  10 Buckingham Gate London SW1E 6LA

  Replacement of window with door, installation of external platform lift and associated entrance alterations; alterations to windows and doors; installation of air source heat pumps, photovoltaic panels and associated plant at roof level; installation of ventilation equipment; and associated works. (Linked with 26/06922/LBC)

  Submitted 9 Oct 2026 Full applications

1. 9 Oct 2026

   Received by Westminster

2. 13 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 4 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.

• 26/06921/FULL Awaiting decision

  10 Buckingham Gate London SW1E 6LA

  Replacement of window with door, installation of external platform lift and associated entrance alterations; alterations to windows and doors; installation of air source heat pumps, photovoltaic panels and associated plant at roof level; installation of ventilation equipment; and associated works. (Linked with 26/06922/LBC)

  Submitted 9 Oct 2026 Full applications

1 later application on the register refers to this one:

• 26/06921/FULL Awaiting decision

  10 Buckingham Gate London SW1E 6LA

  Replacement of window with door, installation of external platform lift and associated entrance alterations; alterations to windows and doors; installation of air source heat pumps, photovoltaic panels and associated plant at roof level; installation of ventilation equipment; and associated works. (Linked with 26/06922/LBC)

  Submitted 9 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.

• 10 Buckingham Gate London SW1E 6LA

  26/06921/FULL Submitted 9 Oct 2026 50 yards away

  88% historically approved · decision due ~4 Dec

  Replacement of window with door, installation of external platform lift and associated entrance alterations; alterations to windows and doors; installation of air source heat pumps, photovoltaic panels and associated plant at roof level; installation of ventilation equipment; and associated works. (Linked with 26/06922/LBC)

  Awaiting decision Full applications Windows or glazing

• 3 Buckingham Mews London SW1E 6NR

  26/00159/CLOPUD Submitted 13 Jan 2026 50 yards away

  Installation of solar panels to existing loft roof.

  Withdrawn Lawful development 12 docs

• 6 Buckingham Mews London SW1E 6NR

  23/03588/NMA Submitted 28 May 2023 50 yards away

  Amendments to planning permission dated 12th December 2022 (RN:22/03987/FULL) for the conversion of ground floor garage to habitable accommodation and erection of mansard extension for use in connection with the existing first floor flat (Unit 8); and extension to the rear first floor to existing flat, Unit 2 [Site includes rear of 25-27 Catherine Place] namely; to extend the width of the flat roof to the edge of the building.

  Refused Amendments Extension Loft or dormer 15 docs

• 3 Buckingham Mews London SW1E 6NR

  26/02298/PASPV Submitted 7 Apr 2026 50 yards away

  89% historically approved · decision due ~2 Jun

  Installation of solar panels to existing loft roof.

  Awaiting decision 15 docs

• 4 Buckingham Mews London SW1E 6NR

  26/05833/FULL Submitted 25 Aug 2026 50 yards away

  88% historically approved · decision due ~30 Oct

  Erection of a mansard roof extension.

  Decided Full applications Extension Loft or dormer 16 docs

• 5 Buckingham Mews London SW1E 6NR

  26/02964/FULL Submitted 6 May 2026 50 yards away

  88% historically approved · decision due ~7 Jul

  Erection of mansard roof extension, external alterations, replacement windows, and conversion of garage to study room.

  Awaiting decision Full applications Extension Loft or dormer +1 17 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