Posted in Government & Military, Organizations DTDDA stands for Depot Town Downtown Development Authority (est. 1975; Ypsilanti, MI) DTDDA Share Pinterest Tweet Whatsapp Post navigation DTE-SDTDE Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.