Flat 36 Collingwood House 103 New Cavendish Street London W1W 6XH

1. 6 Apr 2026

   Received by Westminster

2. 28 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 June 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 66 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 91 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.

• Flat 2 Collingwood House 103 New Cavendish Street London W1W 6XH

  26/02947/FULL Submitted 5 May 2026 50 yards away

  87% historically approved · decision due ~14 Jul

  Installation of replacement aluminium double glazed windows to match the existing to flat 2 at sixth floor level.

  Awaiting decision Full applications Windows or glazing 8 docs

• 95 New Cavendish Street London W1W 6XF

  25/09269/NMA Submitted 22 Dec 2025 50 yards away

  Amendments to panning permission dated 9th July 2024 (RN 24/00892/FULL) for the Variation of condition 1 of planning permission dated 20 December 2022 (RN: 22/03309/FULL) for the refurbishment and extension of the existing building comprising external amendments including a new facade and a setback single-storey extension to provide additional office accommodation (Use Class E), roof terrace and plant above and associated works; namely, Removal of fire rated windows next to the external escape stair, Re-use of existing SVP pipe as RWP downpipe serving 7th floor roof level and existing pipe between levels 00 - 04 refurbished and reused.

  Granted Amendments Extension Windows or glazing 12 docs
  Small domestic

• 95 New Cavendish Street London W1W 6XF

  26/01197/ADFULL Submitted 25 Feb 2026 50 yards away

  Details of samples of facing materials pursuant to Condition 3 of planning permission dated 9th July 2024 (RN: 24/00892/FULL)

  Granted Full applications 7 docs

• Bentinck House 3 - 8 Bolsover Street London W1W 6AB

  25/09345/NMA Submitted 24 Dec 2025 50 yards away

  93% historically approved · decision due ~18 Feb

  Amendments to planning permission dated 13th August 2025 (RN: 25/04551/P3JPA) for Notification for prior approval for the change of use the building from a use falling within Class E (Commercial, Business and Service) to 24 residential apartments (Class C3) pursuant to Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) namely; minor amendments to the internal layout

  Awaiting decision Amendments New dwelling 15 docs

• Bentinck House 3 - 8 Bolsover Street London W1W 6AB

  25/08382/FULL Submitted 17 Nov 2025 50 yards away

  Creation of two terrace areas at main roof level with new railings and planters.

  Withdrawn Full applications 27 docs

• Bentinck House 3 - 8 Bolsover Street London W1W 6AB

  26/00256/FULL Submitted 16 Jan 2026 50 yards away

  87% historically approved · decision due ~13 Mar

  Creation of terraces at lower ground and level 01; introduction of PV panels and plant at roof level; replacement of windows with doors at lower ground level; introduction of doors at level 01; introduction of air bricks and louvres.

  Awaiting decision Full applications Windows or glazing 17 docs

• 26/06295/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Installation of a new shopfront with Medication Dispensing Outlet.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06297/FULL Awaiting decision

  15 Warwick Way London SW1V 1QT

  Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

  Received 15 Sep, published by the council 17 Sep 2026 Full applications
• 26/06294/FULL Awaiting decision

  15 Eaton Mews South London SW1W 9HP

  Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06317/FULL Awaiting decision

  124 Hamilton Terrace London NW8 9UT

  Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

  Received 15 Sep, published by the council 22 Sep 2026 Full applications
• 26/06273/FULL Awaiting decision

  9A Grosvenor Square London W1K 5AE

  Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

  Received 14 Sep, published by the council 22 Sep 2026 Full applications