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Planning application

Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

Awaiting decision Westminster 25/08567/LBC Listed Building Consent Application

Works: Extension Loft or dormer Windows or glazing

Relates to 25/08566/FULL

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

Proposal

Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08566/FULL)

As published by the council, reference 25/08567/LBC

Application record

Reference
25/08567/LBC
Type
Listed Building Consent Application
Status
Pending
Received
24 Nov 2025
Validated
24 Nov 2025
Ward
Marylebone
Postcode
W1G 8DZ

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025.

  • 25/08566/FULL Awaiting decision

    Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

    Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08567/LBC)

    Submitted 24 Nov 2025 Full applications

Timeline

Dates from the published record

  1. 24 Nov 2025

    Received by Westminster

  2. 4 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 19 January 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.

Cases linked to this one on the register

  • 25/08566/FULL Awaiting decision

    Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

    Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08567/LBC)

    Submitted 24 Nov 2025 Full applications

1 later application on the register refers to this one:

  • 25/08566/FULL Awaiting decision

    Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

    Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08567/LBC)

    Submitted 24 Nov 2025 Full applications

Documents

Plans, drawings, consultee responses and the officer's report

24 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

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 87 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 500 metres

  • 45 Welbeck Street London W1G 8DZ

    25/06314/FULL Submitted 5 Sep 2025 0m away

    87% historically approved · decision due ~31 Oct

    Replacement of windows with slimline double glazing windows and associated works.

    Awaiting decision Full applications Windows or glazing 13 docs

  • Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

    25/08566/FULL Submitted 24 Nov 2025 0m away

    87% historically approved · decision due ~19 Jan

    Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08567/LBC)

    Awaiting decision Full applications Extension Loft or dormer +1 27 docs

  • 45 Welbeck Street London W1G 8DZ

    25/05979/LBC Submitted 21 Aug 2025 2m away

    Replacement of windows with slimline double glazing windows and associated works. (Linked to 25/06314/FULL)

    Granted Heritage and listed buildings Windows or glazing 22 docs

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    25/08129/ADLBC Submitted 5 Nov 2025 7m away

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    Awaiting decision Conditions 4 docs

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    25/05868/ADLBC Submitted 19 Aug 2025 7m away

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    Granted Conditions 10 docs

  • 44 Welbeck Street London W1G 8DY

    25/08039/ADFULL Submitted 5 Nov 2025 7m away

    87% historically approved · decision due ~31 Dec

    Details of ventilation grilles pursuant to condition 6. ii) of planning permission dated 20.12.2024 (RN: 24/07650/FULL). (Linked with 25/08129/ADLBC)

    Awaiting decision Full applications 4 docs

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