25/04930/FULLPlanning Application 25/04930/FULL

Full application at 1 Carlton House Terrace London SW1Y 5AF, Westminster. View planning documents, track the decision and get email alerts on updates.

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Variation of conditions 1, 4, 9, removal of conditions 11 and 12 of planning permission dated 28 April 2021 (RN: 21/01191/FULL) as amended by non-material amendment dated 04 September 2025 (RN: 25/05079/NMA), which is a variation of earlier permissions for use of the building as a single residential dwelling (Class C3) with associated internal and external alterations including erection of a sun room with terrace at roof level, partial infill of rear lightwell at basement level and car port enclosure. NAMELY, minor design changes, relocation of the bin store and to install a new bin lift in the front lightwell, re-location the plant and from main roof level into the side lightwell and to install associated screening, revisions to the roof level extension, landscaping and boundary treatments to accommodate a new plant enclosure and provision of details pursuant to the conditions listed above. (Linked to 25/04929/LBC)

25/04930/FULL

Small

Full

1 Carlton House Terrace London SW1Y 5AF

SubmittedSubmitted16 Jul

ValidatedValidated

ConsultationConsultation

TargetTarget Date

DecidedDecided

7 weeks typical decision time in Westminster84% of full applications approved

This is a full planning application for an extension at 1 Carlton House Terrace London SW1Y 5AF. Westminster has handled 4,496 applications of this type and approves 84% of them, typically deciding them in 73 days. It was submitted on 16 July 2025 and is still awaiting a decision. The site is in the St James's conservation area, with 8 listed buildings nearby. There have been 7 other applications at this address. In the past year there have been 594 applications across St James's. We hold 806 applications in total for the SW1Y postcode area.