SQ4D was founded in 2017 as a construction technology venture focused on large-scale construction 3D printing for homes. In January 2020, the company completed construction of a demonstration residence in Calverton, New York, measuring approximately 1,900 square feet. The following year, a 3D-printed house built by SQ4D in
Riverhead, New York, was listed for sale as a permitted residential building and received attention as one of the early 3D-printed homes to be offered on the residential market in the United States and to be eligible for a certificate of occupancy. The property was built using a combination of 3D-printed concrete components and conventional construction methods for elements such as roofing and mechanical systems. In 2023, a newly completed home in
Islandia, New York, was listed for sale as a 3D-printed residence. The project involved a collaboration between a
residential developer and SQ4D and included approximately 2,000 square feet of living space. The project, which was Habitat for Humanity's first 3D-printed home on Long Island, used construction 3D printing for more than half of the structure, including walls, foundation, and insulation. == Technology ==