first 3D printed airport building in Bergamo, Italy
The dubbed first 3D printing airport building in Bergamo, Italyconsists of lime-Mixture based which can help conception and reduction carbon emissions. Designed by WASP, the structure functions as a small service building within the logistics park of Milan Bergamo Airport. It has toilets, a rest area for customs staff and walls that were printed by machine instead of being installed by hand. The team calls it Ol Casél, a phrase in the local dialect of Bergamo that means “the little house”, which corresponds to how it is.
The entire build, from the first row of printed material to the day it was delivered, took 19 days, with the printing itself seven. The team used a crane that has a central mast and an outward-extending arm that carries a print head that extrudes the material in continuous layers, creating the walls of a structure from the ground up. The system is modular, which means that the length of the arm and the printing area can be adjusted according to the size of the building. For Ol Casél, the printer built the walls layer by layer, following a digital model and without a formwork.
all images courtesy of WASP
The lime-based mixture can capture carbon emissions
The material for the 3D printed airport building in Bergamo, Italy used a lime-based mixture, which is believed to produce lower carbon emissions and, in some compositions, can actually absorb carbon dioxide from the air as they mature in a process called carbonization. Using a lime-based mixture instead of a cement-based mixture, Ol Casél’s walls have a lower environmental footprint than a conventional structure of the same size. The building is not fully 3D as the windows, doors and roof were added after printing using standard construction.
The project was promoted by construction company EDILCO Srl, in collaboration with SACBO, the operator of Milan Bergamo Airport, and WASP, the Italian technology company that made the printer that made it. The building was completed in December 2025, just months after development began, and the teams say it met all regulatory requirements for a construction in a controlled airport environment. So far, the structure is located in the logistics park of Milan Bergamo Airport.
Dubbed the first 3D printed airport building in Bergamo, Italy, it consists of a mixture of lime
The lime-based mixture can help sequester and reduce carbon emissions
the structure functions as a small service building within the logistics park of milan bergamo airport
detailed view of the walls
the structure has a rounded shape
