8 - 10 Hallam Street London W1W 6JE

This site has had 4 applications since 2026.

• 26/07052/ADFULL Awaiting decision

  8 - 10 Hallam Street London W1W 6JE

  Details of signed S106 Agreement secures measures to mitigate Grampian re - restrict on-street parking pursuant to condition 4 of planning permission dated 22nd September 2026 (RN 26/04929/P3JPA)

  Submitted 15 Oct 2026
• 26/04929/P3JPA Awaiting decision

  8 - 10 Hallam Street London W1W 6JE

  Application for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide 6 residential dwellings.

  Submitted 23 Jul 2026
• 26/02096/FULL Awaiting decision

  8 - 10 Hallam Street London W1W 6JE

  The erection of rear roof extension, rear first floor extension and external terraces, internal alterations to create level floorplates and associated adjustment of rear facade window positions, installation of a dormer window and multipane windows to 10 to match 12, refurbishment of all existing windows, installation of plant equipment and associated works.

  Submitted 30 Mar 2026 Full applications

1. 24 Jul 2026

   Received by Westminster

2. 1 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 September 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.

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.

• 8 - 10 Hallam Street London W1W 6JE

  26/07052/ADFULL Submitted 15 Oct 2026 50 yards away

  89% historically approved · decision due ~10 Dec

  Details of signed S106 Agreement secures measures to mitigate Grampian re - restrict on-street parking pursuant to condition 4 of planning permission dated 22nd September 2026 (RN 26/04929/P3JPA)

  Awaiting decision

• 8 - 10 Hallam Street London W1W 6JE

  26/04929/P3JPA Submitted 23 Jul 2026 50 yards away

  89% historically approved · decision due ~17 Sep

  Application for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide 6 residential dwellings.

  Awaiting decision

• 8 - 10 Hallam Street London W1W 6JE

  26/02096/FULL Submitted 30 Mar 2026 50 yards away

  88% historically approved · decision due ~25 May

  The erection of rear roof extension, rear first floor extension and external terraces, internal alterations to create level floorplates and associated adjustment of rear facade window positions, installation of a dormer window and multipane windows to 10 to match 12, refurbishment of all existing windows, installation of plant equipment and associated works.

  Awaiting decision Full applications Extension Loft or dormer +1 62 docs

• 12 Hallam Street London W1W 6JF

  23/02806/FULL Submitted 27 Apr 2023 50 yards away

  Replacement of windows with double glazed timber windows; installation of air conditioning unit at roof level; and addition of a rear extension at part third, fourth and fifth floors; and associated works, all in connection with the existing hotel use.

  Granted Full applications Extension Windows or glazing 42 docs

• 14 Hallam Street London W1W 6JG

  25/06730/AD7 Submitted 18 Sep 2025 50 yards away

  Display for a temporary period of six months of a non-illuminated estate agent board located on the railings infront of the building, measuring 0.45m x 0.6m.

  Granted Advertising 9 docs

• 111 - 113 Great Portland Street London W1W 6QG

  07/04483/AD7 Submitted 22 May 2007 50 yards away

  Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.

  Granted Advertising 2 docs

• 26/07528/FULL Awaiting decision

  69 Eaton Place London SW1X 8DF

  Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

  Received 5 Nov, published by the council 6 Nov 2026 Full applications
• 26/05200/FULL Decided

  1 The Court House 165 Seymour Place London W1H 4PU

  Installation of waterproofing system to the existing lead flat roofs

  Received 3 Aug, published by the council 28 Aug 2026 Full applications
• 26/07521/FULL Awaiting decision

  Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

  Installation of one external condenser unit

  Received 4 Nov, published by the council 6 Nov 2026 Full applications
• 26/07508/FULL 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 26/07509/LBC)

  Received 4 Nov, published by the council 5 Nov 2026 Full applications
• 26/07472/FULL Awaiting decision

  Flat 3 82 New Cavendish Street London W1G 9TA

  Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

  Received 3 Nov, published by the council 6 Nov 2026 Full applications