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Planning application

Fourth Floor 2 Cavendish Square London W1G 0PU

Awaiting decision Westminster 26/05967/LBC Heritage and listed buildings

Works: Windows or glazing

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

Proposal

Installation of internal secondary glazing to the 4th-floor windows, with internal reversible, non-destructive fixings into the window reveals, and slimline units to maintain background ventilation and prevent interstitial condensation.

As published by the council, reference 26/05967/LBC

Application record

Reference
26/05967/LBC
Category
Heritage and listed buildings
Status
Pending
Received
1 Sep 2026
Validated
8 Sep 2026
Postcode
W1G 0PU

Timeline

Dates from the published record

  1. 1 Sep 2026

    Received by Westminster

  2. 8 Sep 2026

    Validated

    Checked as complete and ready for consideration.

  3. 11 Sep 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 3 November 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.

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 94 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

  • 2 Cavendish Square London W1G 0PA

    26/00992/AD7 Submitted 17 Feb 2026 50 yards away

    Display for a temporary period of six months of a non-illuminated estate agent board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.

    Granted Advertising 8 docs

  • 2 Cavendish Square London W1G 0PA

    25/08049/FULL Submitted 5 Nov 2025 50 yards away

    87% historically approved · decision due ~31 Dec

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    Awaiting decision Full applications 15 docs

  • 1 Cavendish Square London W1G 0LA

    25/05570/ADLBC Submitted 8 Aug 2025 50 yards away

    Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)

    Granted Conditions Loft or dormer Windows or glazing 7 docs

  • 3 Cavendish Square London W1G 0LB

    26/05556/LBC Submitted 14 Aug 2026 50 yards away

    90% historically approved · decision due ~9 Oct

    Internal fit out of office space on the fourth and fifth floor level.

    Awaiting decision Heritage and listed buildings

  • 3 Cavendish Square London W1G 0LB

    26/05885/AD7 Submitted 27 Aug 2026 50 yards away

    89% historically approved · decision due ~22 Oct

    Renewal for a temporary period of six months for the display of a non-illuminated 'to let' board attached to the railings in front of the building at street level measuring 0.6m x 0.45m.

    Decided 4 docs

  • 3 Cavendish Square London W1G 0LB

    25/08061/LBC Submitted 5 Nov 2025 50 yards away

    90% historically approved · decision due ~31 Dec

    Internal fitout works to return a CAT B space back to a CAT A space as part of the landlord's dilapidation works.

    Awaiting decision Heritage and listed buildings 9 docs

In Westminster

  • 26/04878/LBC Decided

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    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
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    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings
  • 26/06250/LBC Awaiting decision

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    Received 11 Sep, published by the council 18 Sep 2026 Heritage and listed buildings
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    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

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