18 Seymour Street London W1H 7HU

1. 30 Jul 2026

   Received by Westminster

2. 9 Aug 2026

   Added to PlanIndex

3. 13 Aug 2026

   Status changed to Decided

   Previously Pending.

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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.

• 18 Seymour Street London W1H 7HU

  26/03007/ADLBC Submitted 7 May 2026 0m away

  90% historically approved · decision due ~2 Jul

  Details of the repairs and upgrading of the rear oriel window pursuant to condition 5 of listed building consent dated 8th August 2023 (RN:23/02367).

  Awaiting decision Conditions Windows or glazing 10 docs

• 18 Seymour Street London W1H 7HU

  26/01286/ADLBC Submitted 2 Mar 2026 0m away

  90% historically approved · decision due ~27 Apr

  Details of vaults waterproofing method pursuant to Condition 7 of listed building consent dated 8 August 2023 (RN: 23/02367/LBC)

  Awaiting decision Conditions 7 docs

• 18 Seymour Street London W1H 7HU

  25/07393/ADLBC Submitted 13 Oct 2025 0m away

  Details of method of waterproofing of the vaults pursuant to Condition 7 of listed building consent dated 8th August 2023 (RN:23/02367/LBC)

  Refused Conditions 12 docs

• 18 Seymour Street London W1H 7HU

  26/01486/LBC Submitted 9 Mar 2026 0m away

  Replacement of the structurally failing front basement lightwell wall, with repair and reinstatement of railings and plinth stones; the introduction of a concealed structural backing wall (Stepoc blocks reinforced with concrete) and a lime-bedded reclaimed brick-facing wall.

  Granted Heritage and listed buildings 16 docs

• 18 Seymour Street London W1H 7HU

  25/06157/LBC Submitted 29 Aug 2025 1m away

  90% historically approved · decision due ~24 Oct

  Repair strategy for the preservation of existing ceilings

  Awaiting decision Heritage and listed buildings 17 docs

• 18 Seymour Street London W1H 7HU

  26/05009/FULL Submitted 27 Jul 2026 2m away

  87% historically approved · decision due ~21 Sep

  Installation of external lighting to the front entrance and front basement lightwell, entry touch panel and proximity reader within the reveal of the entrance doorway. (Linked with 26/05010/LBC)

  Awaiting decision Full applications 12 docs