10 Stratton Street London W1J 8LG

1. 5 Oct 2026

   Received by Westminster

2. 7 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 30 November 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.

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 Stratton Street London W1J 8LF

  20/05719/LBC Submitted 11 Sep 2020 50 yards away

  External and internal works, including the display of a hanging sign and alteration to external handrails at third level at the rear.

  Granted Heritage and listed buildings 21 docs

• 7 Stratton Street London W1J 8LE

  26/04247/NMA Submitted 26 Jun 2026 50 yards away

  93% historically approved · decision due ~27 Aug

  Amendments to planning permission dated 7th April 2025 (RN:23/05074/FULL) for Erection of one additional floor at fifth floor level and infilling of rear lightwell from lower ground floor to fourth floor to provide additional office (Class E) accommodation; creation of terrace at rear fifth floor for use in association with office (Class E) space, installation of Air Source Heat Pumps within acoustic enclosure at new roof level, addition of planter boxes and associated alterations to the front façade, and excavation of plant pit at basement level to provide space for emergency plant equipment. Namely, alterations to the approved front elevation, including the widening of the existing entrance door opening, revisions to front façade detailing, the installation of discreet architectural lighting to the front elevation, and the introduction of a roof access hatch.

  Awaiting decision Amendments Roofing 19 docs

• 60 Curzon Street London W1J 8PG

  25/05583/FULL Submitted 8 Aug 2025 50 yards away

  Installation of condenser units within basement lightwell 2.

  Granted Full applications 26 docs

• 7 Stratton Street London W1J 8LE

  26/02336/ADFULL Submitted 9 Apr 2026 50 yards away

  88% historically approved · decision due ~4 Jun

  Detailed drawings of all new balustrades, showing black metal railings, all new doors and windows to the rear facade and all replacement and new windows to the front elevation and detailed drawings showing dormer windows with integral glazing bars pursuant to conditions 4 and 6 of planning permission dated 24th July 2023 (RN: 23/05074/FULL).

  Awaiting decision Full applications Loft or dormer Windows or glazing 14 docs

• 7 Stratton Street London W1J 8LE

  26/05085/ADFULL Submitted 29 Jul 2026 50 yards away

  89% historically approved · decision due ~23 Sep

  Details of completed Appendix A checklist from the Code of Construction Practice pursuant to condition 14 of planning permission dated 7th April 2025 (RN:23/05074/FULL).

  Decided

• 7 Stratton Street London W1J 8LE

  26/07128/ADFULL Submitted 19 Oct 2026 50 yards away

  89% historically approved · decision due ~14 Dec

  Details of Samples (photographs and spec) of facing material pursuant to condition 8 of planning permission dated 07 April 2025 (RN: 23/05074/FULL).

  Awaiting decision

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications