Planning application
26/01245/FULL
20 Crown Passage London SW1Y 6PP
Proposal
Installation of two air conditioning units to rear elevation. Installation air vent cover at ground floor level to Crown Passage side elevation.
As published by the council, reference 26/01245/FULL
Timeline
Dates from the published record
-
4 Feb 2026
Received by Westminster
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1 Apr 2026
Validated
Checked as complete and ready for consideration.
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23 Jun 2026
Decision issued: Application Permitted
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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.
Nearby applications
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26/02827/CLLB Awaiting decision
20 Crown Passage London SW1Y 6PP
Air conditioning condenser unit on the back wall of the property, at intermediate 2nd- 3rd floor level. 3 air conditioning condenser units provide the heating system for the upper 3 floors of the property. They are partially or fully hidden from the view of the properties opposite. 2 units have been present for more than 10 years, the 3rd unit for more than 4 years.
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Installation of original gas lantern.
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