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Planning application

1 Marylebone Road London NW1 4AQ

Awaiting decision Westminster 26/04429/LBC Heritage and listed buildings

Relates to 26/04428/FULL

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and reinstatement of stone plinth (retrospective application) (Linked to 26/04428/FULL)

As published by the council, reference 26/04429/LBC

Application record

Reference
26/04429/LBC
Category
Heritage and listed buildings
Status
Pending
Received
3 Jul 2026
Validated
3 Jul 2026
Postcode
NW1 4AQ

Site history

Applications at this address on the Westminster register

This site has had 11 applications since 2026: 1 approved, 0 refused.

  • 26/06161/ADFULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Detailed drawings and sample of Stone (with quarry specification) for plinth, showing material and finish to match existing historic plinth; Section details of plinth, its depth, railing details and method of fixing them to plinth; pursuant to condition 3 (part 1 and 2) of planning permission dated 18th August 2026 (26/04428/FULL)

    Submitted 9 Sep 2026
  • 26/06135/ADLBC Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Detailed drawings and sample of the Stone (with quarry specification) for plinth, showing material and finish to match existing historic plinth and section details of plinth and railings and method of fixing to plinth pursuant to condition 3 of listed building dated 18th August 2026 (RN:26/04429/LBC)

    Submitted 8 Sep 2026
  • 26/04428/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and reinstatement of stone plinth (retrospective application). (Linked to 26/04429/LBC)

    Submitted 3 Jul 2026 Full applications
  • 26/01331/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and stone plinth (retrospective application). [Linked with 26/01332/LBC].

    Submitted 3 Mar 2026 Full applications
  • 26/01332/LBC Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and stone plinth (retrospective application). [Linked with 26/01331/FULL].

    Submitted 3 Mar 2026 Heritage and listed buildings
  • 26/01333/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of CCTV camera and door entry pad to the lower ground crypt entrance on the eastern side of the building (retrospective application). [Linked with 26/01334/LBC].

    Submitted 3 Mar 2026 Full applications
  • 26/01336/LBC Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of two air-conditioning units close to the western stair fire-escape exit to the lower-ground within louvred enclosures (retrospective application). [Linked with 26/01335/FULL].

    Submitted 3 Mar 2026 Heritage and listed buildings
  • 26/01335/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of two air-conditioning units close to the western stair fire-escape exit to the lower-ground within louvred enclosures (retrospective application). [Linked with 26/01336/LBC].

    Submitted 3 Mar 2026 Full applications
  • 26/01334/LBC Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of CCTV camera and door entry pad to the lower ground crypt entrance on the eastern side of the building (retrospective application). [Linked with 26/01333/FULL].

    Submitted 3 Mar 2026 Heritage and listed buildings
  • 26/00568/FULL Granted

    1 Marylebone Road London NW1 4AQ

    Installation of gates within the existing railings fronting Osnaburgh Street

    Decided 17 Apr 2026 Full applications

Timeline

Dates from the published record

  1. 3 Jul 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 28 August 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 65 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 26/04428/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and reinstatement of stone plinth (retrospective application). (Linked to 26/04429/LBC)

    Submitted 3 Jul 2026 Full applications

2 later applications on the register refer to this one:

  • 26/06135/ADLBC Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Detailed drawings and sample of the Stone (with quarry specification) for plinth, showing material and finish to match existing historic plinth and section details of plinth and railings and method of fixing to plinth pursuant to condition 3 of listed building dated 18th August 2026 (RN:26/04429/LBC)

    Submitted 8 Sep 2026
  • 26/04428/FULL Awaiting decision

    1 Marylebone Road London NW1 4AQ

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and reinstatement of stone plinth (retrospective application). (Linked to 26/04429/LBC)

    Submitted 3 Jul 2026 Full applications

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 95 days. More in our guide to how long planning decisions take.

About heritage and listed building applications

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 1 Marylebone Road London NW1 4AQ

    26/04428/FULL Submitted 3 Jul 2026 50 yards away

    87% historically approved · decision due ~28 Aug

    Installation of staircase to the external lower ground entrance on the eastern side of the building and removal of adjacent metal railings and reinstatement of stone plinth (retrospective application). (Linked to 26/04429/LBC)

    Awaiting decision Full applications

  • 1 Marylebone Road London NW1 4AQ

    26/01333/FULL Submitted 3 Mar 2026 50 yards away

    87% historically approved · decision due ~28 Apr

    Installation of CCTV camera and door entry pad to the lower ground crypt entrance on the eastern side of the building (retrospective application). [Linked with 26/01334/LBC].

    Awaiting decision Full applications 10 docs

  • 1 Marylebone Road London NW1 4AQ

    26/01336/LBC Submitted 3 Mar 2026 50 yards away

    90% historically approved · decision due ~28 Apr

    Installation of two air-conditioning units close to the western stair fire-escape exit to the lower-ground within louvred enclosures (retrospective application). [Linked with 26/01335/FULL].

    Awaiting decision Heritage and listed buildings 8 docs

  • 1 Marylebone Road London NW1 4AQ

    26/01335/FULL Submitted 3 Mar 2026 50 yards away

    87% historically approved · decision due ~28 Apr

    Installation of two air-conditioning units close to the western stair fire-escape exit to the lower-ground within louvred enclosures (retrospective application). [Linked with 26/01336/LBC].

    Awaiting decision Full applications 7 docs

  • 1 Marylebone Road London NW1 4AQ

    26/01334/LBC Submitted 3 Mar 2026 50 yards away

    90% historically approved · decision due ~28 Apr

    Installation of CCTV camera and door entry pad to the lower ground crypt entrance on the eastern side of the building (retrospective application). [Linked with 26/01333/FULL].

    Awaiting decision Heritage and listed buildings 10 docs

  • 1 Marylebone Road London NW1 4AQ

    26/06161/ADFULL Submitted 9 Sep 2026 50 yards away

    89% historically approved · decision due ~4 Nov

    Detailed drawings and sample of Stone (with quarry specification) for plinth, showing material and finish to match existing historic plinth; Section details of plinth, its depth, railing details and method of fixing them to plinth; pursuant to condition 3 (part 1 and 2) of planning permission dated 18th August 2026 (26/04428/FULL)

    Awaiting decision

In Westminster

  • 26/04878/LBC Decided

    34 Grosvenor Street London W1K 4QU

    Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
  • 26/04141/LBC Decided

    80E Randolph Avenue London W9 1BG

    Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings
  • 26/06250/LBC Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06249/FULL)

    Received 11 Sep, published by the council 18 Sep 2026 Heritage and listed buildings
  • 26/06203/LBC Awaiting decision

    106 Blandford Street London W1U 8AG

    Installation of two roof-mounted anchor posts. (Linked to 26/06202/FULL)

    Received 10 Sep, published by the council 17 Sep 2026 Heritage and listed buildings
  • 26/06187/LBC Awaiting decision

    4 Shepherd Market London W1J 7QB

    Installation of wall mounted highway street light on to the facade of 4 Shepherd Market.

    Received 10 Sep, published by the council 17 Sep 2026 Heritage and listed buildings