San Bernardino startup Plant Prefab lands $30M Series B Funding

By: Sharjeel Sohaib


Aug 17, 2021


Plant Prefab, a San Bernardino startup that builds prefabricated homes, raised $30M in its Series B funding. The startup’s funding news sounds exciting, especially as it plans to open a second factory in Ontario, California. Plant Prefab claims its key differentiation is building offsite homes 20-50% faster than traditional builders.      

This investment allows us to fully integrate our engineering platforms with our production process, utilizing our proprietary building information management (BIM) systems to drive machinery, advanced factory quality controls, and production tracking. It’s a step change in custom home building, making it significantly faster, easier, and more sustainable to build beautifully-designed, healthy homes,” said Steve Glenn, Founder and CEO of Plant Prefab

Affordable housing crisis and startup funding in prefab construction

California is in the grips of an affordable housing crisis. This is a major milestone for startup funding in San Bernardino as Plant Prefab prepares to inject massive cash into its operations and future growth.

This Rialto, CA-based upstart is competing in a soon-to-be crowded market. Other prefab and tiny home startups,  Abodu, Mighty Buildings, Black Porch Homes, and Connect Homes, all early-stage startups, raised $65M in 2021. The breakup of their funding is given below.  

  • Oakland-based Mighty Buildings, a 3D printing homebuilding startup, raised $40M Series B backed by Khosla Ventures and Zeno Ventures.
  • Abodu raised $20M to build prefab backyard homes. 
  • Connect Homes, with a factory in San Bernardino, secured fresh funding of $5M.    

What’s up with offsite construction?  

Onsite construction is plagued with age-old problems like cost overruns, lack of efficiency, and worker safety issues. However, this is where offsite construction promises to deliver a better return over investment. As a result, money is flowing into the sector faster than before. 

Large companies like Marriott and Alphabet are all dabbling into prefab construction. Marriott built a modular hotel, and Alphabet spent $30M on temporary, prefab housing for 300 of its employees. Investor money has also increased as large companies show interest in solving the housing crisis independently

VC funding in mid-to-late-stage modular construction companies shows a sharp uptick. For example, factory OS, Katerra, Blu Homes, Project Frog, and Prescient, prefab construction scale-ups nabbed more than $2 billion in VC funding in the last three years (this excludes PropTech startups, which is a bigger category that attracted $18.6 billion from 2015 to 2017). 

But investments can quickly evaporate as well, as in the case of Katerra, which recently underwent a $25-million bankruptcy acquisition. It was the most well-funded startup, with $1.6 billion in funding, per Crunchbase data. In addition, the company had $60M worth of manufacturing equipment which it gave to the acquiring company as part of the deal. This marks a massive devaluation of the startup’s assets. Interestingly, Katerra was bought by Volumetric Building Companies (VBC), another offsite and modular construction technology company showing investors confidence in the industry’s long-term prospects.

Koto Phia Iternal Desktop Cropped
Image Courtesy: Plant Prefab

This brings us to PlantPrefab’ss expansion plans, according to which the company will soon open two factories. Historically low-interest rates also bolster the company’s ambitious plans, a lack of affordable housing in California, and the passage of ADU (Accessory Dwelling Units) laws. As a result, it reported a surge in its production contracts by over 175% in the past 12 months alone. 

Next week we plan to interview PlantPrefab’ss leadership and understand how what they are trying to accomplish differs from Katerra’s strategy of developing most technologies in-house. We will also dig into the team behind Plant Prefab that has kept the startup’s growth consistent over a longer period.    

For a more detailed understanding of business growth in the Inland Empire, you may read this article that explains infrastructure and demographics in the Inland Empire.


  • Avatar Of Sharjeel

    Sharjeel joined Startempire Wire as emerging technologies editor. Earlier, he worked at Silicon Canals, a leading English language technology media source for the Benelux and wider Europe. He covered the European technology and startup ecosystem digging into latest funding rounds of startups.


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