17 Lyndon Mead Sandridge Hertfordshire AL4 9EXReference5/2025/2222Local authoritySt AlbansAddress17 Lyndon Mead Sandridge Hertfordshire AL4 9EXProposalDouble storey side extension to replace existing single storey side extension, small rear infill extension, reconfiguration of ground and first floor to provide better layout at 17 Lyndon Mead Sandridge Hertfordshire AL4 9EXStatusRefusedDecision date2026-03-25More planning applications in St Albans