Globally, the built environment is responsible for 38% of total energy-related CO2 emissions, cement alone 8%. These emissions need to be drastically reduced. Digitising production techniques and using sustainable alternatives to cement provide solutions. This project focuses on the development, scaling up and commercialization of SE3DP (Shot-Earth 3D Printing) technology for the production of circular earth constructions, such as sound walls along railway and highways. These are now made from CO2-intensive materials. Thanks to SE3DP automated, they can be produced with local, sustainable earthen materials. This results in 70% less CO2 emissions and significantly lower costs. Formwork Robotics develops SE3DP hardware and software and performs prototype testing. Vertico is developing the undercarriage to make SE3DP operational in the field. Summum constructive and acoustic calculations for the sound wall. Van de Beeten local earthen residual flows and homogeneous building material.