51 Milford Hill Harpenden Hertfordshire AL5 5BLReference5/2026/0925Local authoritySt AlbansAddress51 Milford Hill Harpenden Hertfordshire AL5 5BLProposalPrior notification - Proposed demolition of attached shed/outbuilding and construction of single storey extension of 4m depth x 2.80m in height x 2.600m height to the eaves at 51 Milford Hill Harpenden Hertfordshire AL5 5BLStatusApprovedDecision date2026-06-16More planning applications in St Albans