Are Robots Really Building Houses Now, and Could 3D Printed Homes Make Housing Cheaper?

Robotic 3D printing is moving from a novelty into real home construction, and big investors are paying attention. According to CNBC, Icon, an Austin, Texas based construction technology company, announced a $200 million Series D funding round co-led by Baillie Gifford and funds managed by BlackRock, bringing its total funding to $700 million and valuing the company at $1.4 billion.

Watch on YouTube • Browse every Daily Tesla News episode

What did Icon announce, and who is backing it?

According to CNBC, Icon announced a $200 million Series D funding round co-led by Baillie Gifford and funds managed by BlackRock. The round brings Icon's total funding to $700 million and values the company at $1.4 billion. Icon is based in Austin, Texas and builds homes using large robotic printers. A valuation and a funding round show investor confidence, not proof that the model will work at national scale, but it is one of the larger bets made on construction technology.

How does a 3D printed house actually get built?

Icon uses large robotic printers that extrude a concrete based material layer by layer to form the walls and structure of a home. Roofing, windows, plumbing, electrical and interior finishes are still handled with more conventional methods. The company says it has built more than 270 homes and structures across 5 states and 2 countries, so this is past the prototype stage, though it is still a very small share of total U.S. home construction.

Where are 3D printed homes being built today?

The best known project is Wolf Ranch outside Austin, developed with national homebuilder Lennar and described as the first and largest community of 3D printed homes. The technology is scaling mostly in markets like Texas, Florida and Washington D.C., on open land where new construction subdivisions are common. Those settings give the printers room to work and allow many similar homes to be built in a row.

Is 3D printing faster and cheaper than traditional construction?

Icon says its newest multi story system, Titan, can cut average home construction time by about 6 weeks, reduce the number of workers needed and lower costs to roughly 40% below the national average. Those are company figures and have not been independently verified at scale. Some engineers and homeowners have also raised concerns about cracking, reinforcement and long term durability of printed concrete walls, so buyers should look closely at inspections, warranties and builder track records before assuming the savings come without tradeoffs.

Can you get a mortgage on a 3D printed home?

Financing has historically been a barrier, since lenders and appraisers had few comparable sales to work from. Wells Fargo, a major national bank, is now financing these homes, which removes one of the biggest obstacles for ordinary buyers. Appraisal, insurance and resale value are still worth asking about up front, because a newer building method can mean fewer comparable sales in a given area.

Will 3D printed homes come to Staten Island or Brooklyn?

Not any time soon. Staten Island and Brooklyn are dense, largely built out, high cost markets with small lots, attached housing, strict NYC building codes and very little open land for new subdivisions, which is the opposite of where this technology is scaling today. The bigger picture still matters locally. By some estimates, the U.S. is short as many as 4.7 million homes, and if robotic construction lowers the cost and time to build at scale, it could eventually ease affordability pressure more broadly, including in the New York region over the long run.

Questions about how this affects your home in Staten Island or Brooklyn? Work with Joseph Ranola, or text or call (917) 905-2541. New episodes of Daily Tesla News break down the NYC real estate stories that move the market.