Planning application
26/00517/FULL
Flat 7 150 Sutherland Avenue London W9 1HP
Proposal
Erection of staircase enclosure at roof level, replacement of windows, installation roof terrace railings and decking.
As published by the council, reference 26/00517/FULL
Timeline
Dates from the published record
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29 Jan 2026
Received by Westminster
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20 May 2026
Validated
Checked as complete and ready for consideration.
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21 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.
Nearby applications
Within 500 metres
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25/05185/FULL Granted
154 Sutherland Avenue London W9 1HP
Installation of metal railings at roof level for safe maintenance purposes only.
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26/00667/FULL Awaiting decision
149 Sutherland Avenue London W9 1ES
Removal of the exterior staircase between upper ground floor level and garden of Flat A and installation of a Juliet balcony railing to doors at upper ground floor level and associated works.
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26/04501/TCA Awaiting decision
21 Lauderdale Mansions Lauderdale Road London W9 1LX
Ash Tree: Remove. Tree is infected with Inonotus hispidus fungus and has become dangerous (reason updated to Inonotus hispidus 09/07/2026)
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25/07230/FULL Awaiting decision
26 Castellain Road London W9 1EZ
Use of roof as roof terrace, plus installation of associated railings and decking.
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26/02959/FULL Awaiting decision
Basement And Ground Floor Flat 1 133 Sutherland Avenue London W9 2QJ
Replacement of existing rear sash window sashes and door, with double glazing
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25/05606/FULL Granted
133 Sutherland Avenue London W9 2QJ
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26/04824/ADFULL Granted
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26/04841/ADFULL Granted
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Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
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26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
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26/04986/FULL Awaiting decision
Inver Court Inverness Terrace London W2 6JB
Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.