Construction group Matthäi Schlüsselfertigbau has established an in-house construction 3D printing division following the completion of its own headquarters in Selsingen, Lower Saxony, a two-storey, 364 m² (3,920 ft²) office whose walls were printed in roughly 105 hours on a COBOD BOD2 and which the company occupied in July 2026. The subsidiary belongs to Matthäi,…