Simi Valley Planning Division 3855 Alamo St # A Simi Valley, CA 93063 Phone : (805) 583-6769 Simi Valley Planning Division Business Category Government Offices-City Village & Twp Legislative Bodies Simi Valley City Of--environmental Services Department, Planning Division, Environmental 3855a Alamo St Simi Valley, CA 93063 Phone : (805) 583-6769 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools