Grand River Modular (GRM) is an Indigenous-owned and operated company that delivers high-quality modular housing solutions while fostering economic growth and career opportunities for Indigenous communities. With roots in Ontario, GRM is committed to building sustainable, affordable housing, from backyard ADUs to larger single-family and multistorey housing projects.
Grounded in Indigenous values and led by a commitment to future generations, GRM combines advanced modular construction with a community-centered approach. By training Indigenous youth in Red Seal apprenticeships and providing full-time career growth opportunities, GRM is equipping the next generation of industry leaders while supporting local economies.
Our flagship product, the Minisi ADU, serves as a compact, eco-friendly housing solution that maximizes living space without compromising on quality or functionality. Designed to streamline the housing process, the Minisi meets the growing need for accessible, adaptable living spaces in both urban and rural areas.
Looking to the future, GRM is preparing to scale its operations to produce larger residential and multistorey housing solutions, furthering our mission to meet the diverse needs of communities across Canada. With a focus on sustainable practices, strong community collaboration, and Indigenous empowerment, GRM aims to set a new standard in modular housing—one that bridges cultural values with cutting-edge construction to build a brighter, more inclusive future.
