A pioneering stride in the realm of construction has been made by a California-based startup, which has successfully completed its first entirely 3D-printed house. This venture heralds a promising future for quicker and more cost-effective housing solutions in the state.

In February, 4DIFY revealed this groundbreaking achievement, underscoring the viability of robotic construction technologies in transitioning from theoretical concepts to tangible structures within the framework of existing building regulations.

Eschewing the conventional methods of wood framing and large crews of construction workers, this innovative home was crafted with large-scale 3D printers. These machines meticulously layer concrete, inch by inch, to form the house’s walls with precise automation.

This project forms part of an experimental community in Yuba County, situated to the north of Sacramento. Here, developers are ambitiously working on a small neighborhood of five homes, all constructed using this state-of-the-art approach.

According to Nan Lin, the founder of 4DIFY, the approximately 1,000-square-foot residence was completed in a remarkable 24 days, as reported to CBS News. This is a stark contrast to the months or even years typically required to build a house in California.

Advocates of this technology point out its potential to significantly cut down on construction timeframes, reduce labor expenses, and minimize material waste. Such efficiencies could play a crucial role in making housing more affordable in California, a state currently battling severe housing shortages.

The technology used by 4DIFY comes from the company SQ4D, whose robotic “ARCS” printer is designed to fabricate full-size concrete structures with minimal manual labor.  

The homes aren’t just quick to build–developers claim they’re also tougher than conventional houses. Because the structures are made largely from concrete, the walls are designed to be fire-resistant, mold-resistant and pest-resistant, and may even lead to lower insurance costs.  

While the first house took 24 days to print, the team expects future builds to take as little as 10 days.

“We are already preparing to print additional homes on the same site, applying what we’ve learned to improve efficiency, coordination, and speed,” 4Dify said on its site. “Each build strengthens our process and brings us closer to scalable, repeatable deployment.”

Each home in the project is expected to sell below the local market rate, thanks to savings in labor and materials. The first property is already listed for $375,000, according to reports.