Proposal
Conversion of roof space to habitable use to include a rear dormer with juliette balcony, 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
As published by the council, reference 80070/APP/2026/1178
Timeline
Dates from the published record
-
12 May 2026
Received by Hillingdon
-
26 Jun 2026
Decision issued: Permitted
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26 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.
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Other full applications applications
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80085/APP/2026/1376 Granted
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Erection of single storey wrap-around extension comprising a rear extension and a side extension following demolition of the existing side garage,
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80132/APP/2026/1519 Granted
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80114/APP/2026/1390 Granted
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20610/APP/2026/872 Granted
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