33 Grosvenor Place London SW1X 7HY

1. 5 Aug 2026

   Received by Westminster

2. 3 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 5 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 29 October 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 61 days over the applications it decided in the last year.

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Westminster is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 33 Grosvenor Place London SW1X 7HY

  26/05233/ADFULL Submitted 3 Aug 2026 0m away

  89% historically approved · decision due ~28 Sep

  Detailed Operational Management Plan; pursuant to condition 25 of planning permission dated 3rd April 2017 (RN 16/08369/FULL)

  Awaiting decision

• 9 Chester Mews London SW1X 7AH

  26/03339/FULL Submitted 20 May 2026 29m away

  87% historically approved · decision due ~22 Jul

  Excavation of an additional basement level, in connection with the upgrade and enlargement of commerical space (Use Class E).

  Awaiting decision Full applications 34 docs

• 3 Wilton Street London SW1X 7AF

  25/08751/LBC Submitted 1 Dec 2025 45m away

  Erection of a mansard roof extension and internal alterations to third floor level.

  Refused Heritage and listed buildings Extension Loft or dormer 15 docs

• 3 Wilton Street London SW1X 7AF

  25/08750/FULL Submitted 1 Dec 2025 45m away

  Erection of a mansard roof extension.

  Refused Full applications Extension Loft or dormer 20 docs

• 3 Wilton Street London SW1X 7AF

  25/05488/LBC Submitted 5 Aug 2025 46m away

  Alterations to basement and ground floors including conversion of lounge to a bedroom and dressing room and other internal alterations.

  Granted Heritage and listed buildings 18 docs

• 3 Wilton Street London SW1X 7AF

  25/06550/FULL Submitted 12 Sep 2025 47m away

  Installation of security bars to front windows of basement and ground floors.

  Refused Full applications Windows or glazing 28 docs