27 Highfield Road Sandridge Hertfordshire AL4 9BXReference5/2026/1160Local authoritySt AlbansAddress27 Highfield Road Sandridge Hertfordshire AL4 9BXProposalCertificate of Lawfulness (Proposed) - The proposed 3m two storey rear extension and internal alterations at 27 Highfield Road Sandridge Hertfordshire AL4 9BXStatusRefusedDecision date2026-08-17More planning applications in St Albans