The Professional Office Building of Waipahu! The Sonido-Alquero Building (former American Savings Bank Building) is centrally located in Waipahu at the corner of Farrington Highway and Waipahu Depot Street. Full service building with elevator access, free customer parking and central air conditioning. Central location in Waipahu, Oahu, Hawaii at the corner of Farrington Highway and Waipahu Depot Street.