Are 3D Printed Homes Really a Solution in the Face of Wildfires?

Since January 7th, 2025, wildfires have been devastating southern California: more than 37 thousand acres of land have been scorched, leaving 28 people dead and more than 10,000 homes and businesses destroyed. Facing the wreckage, questions arise. How can this devastation be prevented? How can Los Angeles be rebuilt sustainably—and built to withstand future fires? One solution being discussed is that of 3D-printed, fire-resistant homes.

3D-printed buildings have been cropping up across the US for several years now, with the first owner-occupied, 3D-printed house being built in 2021. More recently, Builtech Construction Group and RIC Technology completed the United States’ first 3D printed, fire-resistant accessory dwelling unit (ADU). The 1,200-square-foot ADU, located in Walnut, California, is less than 30 miles from the raging fires in Los Angeles. Philip and Constance, the couple who owns the property, expressed gratitude for their safety: “We hope more people can stay in this kind of house for better protection.”

The fire-resistant steel roof (left) and RIC Technology’s robotic arm 3D printer (right). (Photo Credits: RIC Technology)

What Makes the 3D-Printed Home Fire Resistant?

Given its location in wildfire-prone southern California, the two-bedroom, 2.5-bathroom unit built in Walnut was designed with special attention to fire resistance. In fact, the project was the result of a collaboration between the City of Walnut and the Los Angeles County Fire Department.