PHOENIX — Mosaica Office Building, a 65,900-square-foot office building in the Phoenix submarket of Ahwatukee, has sold to BASIS Schools, Inc for $2 million. The Class C building is located at 10210 South 50th Place. The building was vacant at the time of the sale. College preparatory schoolBASIS Ahwatukee is scheduled to occupy the space in August 2013. The seller was Educational Facilities Acquisitions LLC. The transaction was executed by Eric Wichterman and Mike Coover of Cassidy Turley and Terry Warren of Arizona Charter Commercial Realty.