WASP Completes Itaca, Italy's First Seismic-Certified 3D-Printed House, Near Imola in Emilia-Romagna

WASP has completed Itaca, a 165-square-meter house near Imola that the company describes as Italy's first 3D-printed residence certified as compliant with Italian and European building codes, including seismic requirements. The Crane WASP printer positioned four robotic printing arms at the vertices of a hexagonal frame to print four wall sections simultaneously, with each 3.8-meter wall taking about 24 hours. The walls, 60 to 70 centimeters thick, use a cement-free lime-based mix reinforced with structural columns to meet seismic code, with cavities filled with rice husk for insulation instead of a separate layer. Heating and electrical systems were embedded directly during printing.

The certification is what separates Itaca from a decade of printed-house demonstrations and pavilions, including WASP's own TECLA built with Mario Cucinella Architects in 2021, which were prototypes rather than permanent structures cleared under Italy's strict building code. Passing seismic compliance functions as the construction-sector equivalent of an aerospace qualification hurdle, the unglamorous regulatory step that has kept printed housing at showcase status in most markets. Itaca sits within WASP's Shamballa research site, an 8-hectare hub pairing the house with rainwater basins, a photovoltaic array, geothermal systems and printed hydroponic units aimed at self-sufficiency on a roughly 33-meter plot.

The open question is replicability: one certified house under one region's seismic code does not establish that the approval pathway generalizes to other jurisdictions' standards.