Planning application
25/09107/FULL
Flat 4 4 St Stephen's Gardens London W2 5QX
Proposal
Removal of existing butterfly roof, Raising of existing party walls for loft extension structure, Erection of a mansard roof extension to create open plan living and kitchen space, New roof terrace behind the front parapet, New rooflight over the stair.
As published by the council, reference 25/09107/FULL
Timeline
Dates from the published record
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17 Dec 2025
Received by Westminster
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20 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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.
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