Santander – Builth Wells – Opening Hours & Store Details You’ll find Santander situated at a prime place at 45 High Street, about a 0.11 mile distance south-east from the centre of Builth Wells (nearby Royal Welsh Agricultural Society Showground and St Mary’s Church). The store mainly provides service to people from the locales of Cilmeri, Builth Wells Town Centre, Builth Road, Maesmynis, Llanelwedd and Llanddewi I Cwn. Please review the sections on this page about Santander Builth Wells, including the business hours, store address, customer rating and other info.