Rialto, California-based Plant Prefab, which develops sustainable, prefabricated homes, has scored $30M in a venture capital investment round. The Series B funding was led by Asahi Kasei Corporation and Paris Ventures, the corporate venture capital program of Brazilian steel producer Gerdau, and also included Amazon Alexa Fund, Ferguson Ventures, and Obvious Ventures. The company said the funding also included venture debt from Western Technology Investments and ATEL Capital Group. Plant Prefab develops prefabricated buildings for the single-family and multi-family home market; the company says its systems allow for building those homes 20-50% faster than traditional building methods with up to 30% less waste at a 10-25% cost savings in major cities. Steve Glenn is Founder and CEO of Plant Prefab.