9 Weymouth Mews London W1G 7EA

This site has had 2 applications since 2026.

• 26/07208/FULL Awaiting decision

  9 Weymouth Mews London W1G 7EA

  Conversion of part of the basement currently in office use associated with 43 Portland Place (Use Class E) to residential use to extend the existing dwellinghouse at 9 Weymouth Mews (Use Class C3), together with the formation of a new internal staircase connecting the basement to the dwelling, construction of a separating wall, alterations to the rear lightwell elevation. (Linked to 26/07209/LBC)

  Submitted 21 Oct 2026 Full applications

1. 21 Oct 2026

   Received by Westminster

2. 27 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 16 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 91 days over the applications it decided in the last year.

• 26/07208/FULL Awaiting decision

  9 Weymouth Mews London W1G 7EA

  Conversion of part of the basement currently in office use associated with 43 Portland Place (Use Class E) to residential use to extend the existing dwellinghouse at 9 Weymouth Mews (Use Class C3), together with the formation of a new internal staircase connecting the basement to the dwelling, construction of a separating wall, alterations to the rear lightwell elevation. (Linked to 26/07209/LBC)

  Submitted 21 Oct 2026 Full applications

1 later application on the register refers to this one:

• 26/07208/FULL Awaiting decision

  9 Weymouth Mews London W1G 7EA

  Conversion of part of the basement currently in office use associated with 43 Portland Place (Use Class E) to residential use to extend the existing dwellinghouse at 9 Weymouth Mews (Use Class C3), together with the formation of a new internal staircase connecting the basement to the dwelling, construction of a separating wall, alterations to the rear lightwell elevation. (Linked to 26/07209/LBC)

  Submitted 21 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.

• 9 Weymouth Mews London W1G 7EA

  26/07208/FULL Submitted 21 Oct 2026 50 yards away

  88% historically approved · decision due ~16 Dec

  Conversion of part of the basement currently in office use associated with 43 Portland Place (Use Class E) to residential use to extend the existing dwellinghouse at 9 Weymouth Mews (Use Class C3), together with the formation of a new internal staircase connecting the basement to the dwelling, construction of a separating wall, alterations to the rear lightwell elevation. (Linked to 26/07209/LBC)

  Awaiting decision Full applications
  Domestic

• 22 Weymouth Street London W1G 7BN

  23/08952/ADLBC Submitted 29 Dec 2023 50 yards away

  Details of all works for restoration of the library pursuant to Condition 4 of listed building consent dated 12 September 2023 (RN: 23/03767/LBC).

  Granted Conditions 9 docs

• 22 Weymouth Street London W1G 7BN

  23/07182/ADLBC Submitted 16 Oct 2023 50 yards away

  Details of all works for restoration of the library pursuant to Condition 4 of listed building consent dated 12 September 2023 (RN: 23/03767/LBC)

  Refused Conditions 8 docs

• 43 Weymouth Mews London W1G 7EQ

  26/00547/FULL Submitted 30 Jan 2026 50 yards away

  88% historically approved · decision due ~27 Mar

  Retention of one retractable awning and installation of one additional retractable awning at ground floor level to The Jackalope Public House.

  Awaiting decision Full applications 11 docs

• 43 Weymouth Mews London W1G 7EQ

  26/00548/LBC Submitted 30 Jan 2026 50 yards away

  90% historically approved · decision due ~27 Mar

  Retention of one retractable awning and installation of one additional retractable awning at ground floor level to The Jackalope Public House.

  Awaiting decision Heritage and listed buildings 6 docs

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

  26/07202/LBC Submitted 21 Oct 2026 50 yards away

  90% historically approved · decision due ~16 Dec

  Replacement of 13 doorsets with fire doors.

  Awaiting decision Heritage and listed buildings

• 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