August 13, 2024
ICON, in association with Lennar, is nearing the completion of a pioneering community consisting of 100 3D-printed homes in Texas. Initiated in November 2022, this project stands as one of the initial substantial attempts in this field with about a fourth of the homes already purchased and residents beginning to settle in.
The neighborhood features homes with walls created by ICON’s Vulcan 3D printer. This printer, resembling a crane, operates with a robotic arm that methodically places concrete in layers akin to icing a cake. Directed by digital designs, the Vulcan meticulously forms the base and erects the walls layer by layer. While the innovative technique constructs the walls, traditional building methods complete other components like foundations, roofs, and interior finishes.
This endeavor highlights several benefits of 3D printing technology in the construction industry. For instance, the Vulcan printer can create a house in around three weeks using just one crew. ICON worked with the architectural firm Bjarke Ingels Group to develop eight different layouts for these ranch-style houses, which include three to four bedrooms and vary in size from 1,574 to 2,112 square feet.
Approximately 25 percent of the homes have been purchased, with costs varying between $450,000 and $600,000, matching the price range of comparable properties in the vicinity. The initial homeowners have started settling in, with reports of positive experiences. One couple mentioned the robust construction of their house, featuring dense concrete walls that effectively insulate and maintain a cooler indoor environment against the harsh summer heat of Texas. The houses are also outfitted with solar panels to promote sustainable living. Nevertheless, the thick concrete has been known to hinder WiFi signals, leading occupants to implement mesh networks for better internet service.
The idea of constructing homes with 3D printing technology has existed for over two decades. Enterprises such as Icon have been continually enhancing the technology, improving upon aspects like the concrete used, automation of robotic systems, and pinpointing the construction phases that are most amenable to 3D printing. Despite 3D printing being recognized for its efficiency and reduced resource usage, the selling prices of these homes remain comparable to traditionally constructed dwellings. Certain elements, like the integration of windows and other components, might even escalate costs in these novel 3D-printed structures.
In an effort to make 3D-printed homes more cost-effective, Icon initiated the “Initiative 99” in 2023. This contest challenges participants to design homes that can be 3D printed for less than $99,000. The first phase winners were revealed at this year’s SXSW.
Although still emerging in the realm of commercial housing construction, the venture in Texas marks an important progression. As firms like Icon advance and merge this technology with mainstream building practices, it opens the possibility for reduced costs and broader utilization of 3D printing in creating affordable homes.
A group of Texans is set to move into their unique, 3D-printed homes, recognizable by their corduroy-textured concrete walls.
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