Design Collaborative, Inc. Share: ArchitectureInterior DesignPlanner/Designer Design Collaborative, Inc. Visit Website Request Info 1211 Delaware Avenue Wilmington, DE 19806-4716 (302) 652-4221 (302) 656-0397 (fax) www.dciarchitects.com Map What's Nearby? Distance: 5 10 15 20 25 50 mi.