Additive Optimized insulated concrete is a building detail that incorporates the standardized insulated concrete principles. The idea is to go beyond the standardized system and introduce the insulation layer as the outer layer. The investigation started with formal studies based on cellulose structures using tessellation and bridging methods with concrete and resin casting. It later on moved to building a 1:1 prototype of a 4” inner shell and 8”-10” interior cavity that has a lattice formwork. The procedure was done manually first using polyurethane spray foam then moved to using the ABB IRB 2600 robotic arm to 3d print the in 1m x 1m x 2m box.