Flat 49 2 Mansfield Street London W1G 9NF

1. 25 Feb 2026

   Received by Westminster

2. 3 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. 3 Nov 2026

   Status changed to Decided

   Previously Pending.

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

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.

• Flat 10 2 Mansfield Street London W1G 9NF

  26/01152/LBC Submitted 24 Feb 2026 50 yards away

  90% historically approved · decision due ~8 Jun

  Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

  Withdrawn Heritage and listed buildings 14 docs

• Flat 45 2 Mansfield Street London W1G 9NF

  26/02045/LBC Submitted 27 Mar 2026 50 yards away

  90% historically approved · decision due ~22 May

  Roof extension to the existing mansard roof with associated elevational alterations on the Duchess Street and Rear Elevation, alterations to the existing mansard roof on the Mansfield Street Elevation including a new dormer window and the replacement of the existing external doors, two new rooflights at main roof level, installation of two external air conditioning (AC) condensers at main roof level, replacement of existing rooflights and windows, installation of new external cupboard at terrace level and internal reconfigurations throughout. (Linked with 26/02044/FULL)

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 1 doc

• Flat 45 2 Mansfield Street London W1G 9NF

  26/02044/FULL Submitted 27 Mar 2026 50 yards away

  88% historically approved · decision due ~22 May

  Roof extension to the existing mansard roof with associated elevational alterations on the Duchess Street and Rear Elevation, alterations to the existing mansard roof on the Mansfield Street Elevation including a new dormer window and the replacement of the existing external doors, two new rooflights at main roof level, installation of two external air conditioning (AC) condensers at main roof level, replacement of existing rooflights and windows, installation of new external cupboard at terrace level and internal reconfigurations throughout. (Linked with 26/02045/LBC)

  Awaiting decision Full applications Extension Loft or dormer +1 12 docs

• Flat 16 2 Mansfield Street London W1G 9NF

  22/01316/LBC Submitted 24 Feb 2022 50 yards away

  Replacement windows and door to the rear elevation.

  Granted Heritage and listed buildings Windows or glazing 12 docs

• Flat 43 2 Mansfield Street London W1G 9NF

  26/00589/FULL Submitted 2 Feb 2026 50 yards away

  88% historically approved · decision due ~12 May

  Installation of external air conditioning unit at roof level and associated cabling and pipework. (Linked with 26/00590/LBC)

  Awaiting decision Full applications 22 docs

• Flat 43 2 Mansfield Street London W1G 9NF

  26/00590/LBC Submitted 2 Feb 2026 50 yards away

  90% historically approved · decision due ~12 May

  Installation of external air conditioning unit at roof level and associated cabling and pipework. (Linked with 26/00589/FULL)

  Awaiting decision Heritage and listed buildings 2 docs

• 26/07529/LBC Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

  Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07509/LBC Awaiting decision

  Buckingham Palace The Mall London SW1A 1AA

  Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07508/FULL)

  Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07473/LBC Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

  Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
• 26/07471/LBC Awaiting decision

  12 Queen Anne's Gate London SW1H 9AA

  Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
• 26/07461/LBC Awaiting decision

  1 Savile Row London W1S 3JR

  Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

  Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings