3D-Printed Homes: A Sustainable Housing Solution

In the picturesque state of Maine, a revolution in home construction is unfolding at the University of Maine’s Advanced Structures & Composites Center (ASCC). Here, a giant 3D printer, the largest of its kind, is not just printing homes; it’s reshaping the future of sustainable living and addressing critical issues like labor shortages, supply chain disruptions, and the dire need for affordable housing. 

Innovation at the Forefront 

The project, known as BioHome3D, is the world’s first 100% bio-based 3D-printed home1. Unveiled on November 21, 2022, this groundbreaking initiative is a testament to the university’s commitment to innovation and sustainability. The BioHome3D is entirely made from locally sourced wood fiber and bio-resin materials, setting it apart from other 3D-printed structures that still rely on conventional, often non-recyclable, materials1

Addressing the Housing Crisis 

Maine, like many regions, is grappling with a housing crisis. The National Low Income Housing Coalition reports a staggering need for over 7 million affordable housing units nationwide, with Maine alone facing a deficit of 20,000 units2. The BioHome3D project aims to tackle this issue head-on by providing a scalable solution that can rapidly produce affordable homes. 

A Collaboration of Minds and Resources 

The development of BioHome3D is a collaborative effort between the University of Maine and Oak Ridge National Laboratory, funded by the U.S. Department of Energy’s Hub and Spoke program. This partnership has fostered an environment where academic research meets practical application, resulting in a product that could revolutionize the housing market2

Sustainable Materials for a Greener Future 

The use of 100% recyclable materials is a cornerstone of the BioHome3D. The walls, floors, and roof are all printed using a new bio-based PLA grade formulated specifically for additive manufacturing. This not only reduces the carbon footprint of home construction but also supports the local forestry industry by utilizing wood fiber insulation and blown-in cellulose insulation1

3D-Printed Homes: A Sustainable Housing Solution

Efficiency Meets Customization 

One of the most significant advantages of 3D printing is the reduction of construction waste due to the precision of the printing process. The BioHome3D takes this a step further by allowing for customizable R-values, ensuring that each home is highly insulated and energy-efficient. The design process also involved input from the Maine State Housing Authority, ensuring that the homes meet the needs of the community1

A Model for the Future 

The BioHome3D serves as a model for future housing developments. Its modular design allows for ease of transportation and assembly, and the highly automated, off-site production process addresses labor shortages. With the ability to produce a 600 square foot single-family home, the BioHome3D demonstrates the potential for 3D printing to meet the growing demand for housing1


The BioHome3D project at the University of Maine represents more than a technological breakthrough; it symbolizes a vision for sustainable and economical housing solutions. Amidst global environmental concerns and population growth, BioHome3D exemplifies the potential of human creativity and the expansive capabilities of 3D printing technology. This initiative marks a progressive stride towards a future where accessible, affordable, and environmentally friendly homes are a reality for all.

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