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Planning application

18 Seymour Street London W1H 7HU

Decided Westminster 26/05164/ADLBC

Relates to 26/01486/LBC

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Details of new vault doors pursuant to condition 3 of listed building consent dated 01 April 2026 (RN: 26/01486/LBC)

As published by the council, reference 26/05164/ADLBC

Application record

Reference
26/05164/ADLBC
Status
Decided
Received
30 Jul 2026
Validated
30 Jul 2026
Postcode
W1H 7HU

Site history

Applications at this address on the Westminster register

This site has had 8 applications since 2025: 1 approved, 1 refused.

  • 26/05009/FULL Decided

    18 Seymour Street London W1H 7HU

    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.

    Submitted 27 Jul 2026 Full applications
  • 26/05010/LBC Decided

    18 Seymour Street London W1H 7HU

    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.

    Submitted 27 Jul 2026 Heritage and listed buildings
  • 26/03007/ADLBC Awaiting decision

    18 Seymour Street London W1H 7HU

    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).

    Submitted 7 May 2026 Conditions
  • 26/01486/LBC Granted

    18 Seymour Street London W1H 7HU

    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.

    Decided 1 Apr 2026 Heritage and listed buildings
  • 26/01286/ADLBC Awaiting decision

    18 Seymour Street London W1H 7HU

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

    Submitted 2 Mar 2026 Conditions
  • 25/07393/ADLBC Refused

    18 Seymour Street London W1H 7HU

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

    Decided 16 Feb 2026 Conditions
  • 25/06157/LBC Awaiting decision

    18 Seymour Street London W1H 7HU

    Repair strategy for the preservation of existing ceilings

    Submitted 29 Aug 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 30 Jul 2026

    Received by Westminster

  2. 9 Aug 2026

    Added to PlanIndex

  3. 13 Aug 2026

    Status changed to Decided

    Previously Pending.

Cases linked to this one on the register

  • 26/01486/LBC Granted

    18 Seymour Street London W1H 7HU

    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.

    Decided 1 Apr 2026 Heritage and listed buildings

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

About this record

The published feed does not state which type of application this is; the register entry on Westminster's portal will say. Our guide explains the common types.

Nearby applications

Within 0.3 miles

  • 18 Seymour Street London W1H 7HU

    26/03007/ADLBC Submitted 7 May 2026 50 yards away

    89% 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 50 yards away

    89% 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 50 yards 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

    26/05009/FULL Submitted 27 Jul 2026 50 yards away

    88% 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.

    Decided Full applications 12 docs

  • 18 Seymour Street London W1H 7HU

    26/05010/LBC Submitted 27 Jul 2026 50 yards away

    90% 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.

    Decided Heritage and listed buildings 1 doc

  • 18 Seymour Street London W1H 7HU

    26/01486/LBC Submitted 9 Mar 2026 50 yards 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