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Planning application

25/06469/FULL

First Floor 15 Harley Street London W1G 9QQ

Granted Westminster Full Planning Permission Application

Proposal

Re-orientation and screening of an existing air handling unit (AHU) located on the rooftop of the modern rear extension at 15 Harley Street.

As published by the council, reference 25/06469/FULL

Timeline

Dates from the published record

  1. 10 Sep 2025

    Received by Westminster

  2. 10 Nov 2025

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 25/06470/LBC Granted

    First Floor 15 Harley Street London W1G 9QQ

    Re-orientation and screening of an existing air handling unit (AHU) located on the rooftop of the modern rear extension at 15 Harley Street.

    10 Sep 2025 0m away Heritage and listed buildings
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In Westminster

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    24 Jul 2026 Full applications