3 Columbia Avenue Whitstable Kent CT5 4DGReferenceCA/26/01170Local authorityCanterburyAddress3 Columbia Avenue Whitstable Kent CT5 4DGProposalFirst floor and Roof Extensions including front and rear dormer windows and rooflights, external alterations to elevations including replacement windows, doors, render and cladding following demolition of single storey side extension.StatusApprovedValidated2026-07-09More planning applications in Canterbury