Flats 89 To 96 Leith Mansions Grantully Road London W9 1LJ

1. 4 Aug 2026

   Received by Westminster

2. 11 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 29 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 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.

• 100 Leith Mansions Grantully Road London W9 1LJ

  26/04875/FULL Submitted 21 Jul 2026 50 yards away

  88% historically approved · decision due ~28 Sep

  Replacement of windows and door at rear first floor level.

  Decided Full applications Windows or glazing

• 87 Leith Mansions Grantully Road London W9 1LJ

  22/04240/FULL Submitted 28 Jun 2022 50 yards away

  Replacement of the external doors and windows with new timber double glazed units to flat located at third floor level.

  Granted Full applications Windows or glazing 8 docs

• 9 Morshead Mansions Morshead Road London W9 1LE

  23/03378/FULL Submitted 22 May 2023 100 yards away

  Retention and refurbishment existing timber window frames and replacement of single glazed timber sash windows to double glazed timber sash windows.

  Granted Full applications Windows or glazing 21 docs

• 24 Morshead Mansions Morshead Road London W9 1LE

  25/06058/FULL Submitted 26 Aug 2025 100 yards away

  Installation of eight conservation-style rooflights; Installation of new door and railings to create roof terrace at third floor level to rear; Refurbishment of existing window frames and installation of double glazing, in association with the creation of additional habitable accommodation within loft space (Flat 21).

  Granted Full applications Loft or dormer Windows or glazing 17 docs

• 40 Leith Mansions Grantully Road London W9 1LH

  25/07664/FULL Submitted 22 Oct 2025 100 yards away

  Replacement of existing windows, including sash windows, to the front, side, and rear elevations with new timber sash and timber casement windows, all to be installed within the existing structural openings.

  Granted Full applications Windows or glazing 18 docs

• 54 Morshead Mansions Morshead Road London W9 1LF

  22/03901/FULL Submitted 15 Jun 2022 100 yards away

  Replacement of windows to front and rear of building at second floor level (Flat 54).

  Granted Full applications Windows or glazing 8 docs

• 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