56 Langley Grove Sandridge Hertfordshire AL4 9DXReference5/2026/0111Local authoritySt AlbansAddress56 Langley Grove Sandridge Hertfordshire AL4 9DXProposalCertificate of Lawfulness (proposed) - Proposed loft conversion with rear flat roofed dormer and rooflights to the front elevation at 56 Langley Grove Sandridge Hertfordshire AL4 9DXStatusApprovedDecision date2026-04-10Validated2026-01-22More planning applications in St Albans