The extreme hostile environment of Mars offers a testbed for exploring new concepts in sustainable autonomous construction. The clay rich site of Gale Crater, the Curiosity rover exploration zone, is ideal for In-Situ Resource Utilisation. 3D printing requires Martian regolith and an adhesive obtained from corn grown in a temporary inflatable structure shipped inside NASA's Orion module. 3D printed regolith offers protection from radiation, dust and daily temperature swings. The atrium provides space to grow bamboo for future construction.