Mattamy Homes is one of Canada’s largest privately held residential builders, founded in 1978 and headquartered in Toronto. Over more than four decades, the company has developed tens of thousands of homes across Ontario, British Columbia, and the United States, with operations in more than 60 communities. Mattamy’s portfolio includes single-family homes, townhomes, condominiums, and mixed-use projects. The firm emphasizes master-planned communities with integrated amenities, parks, trails, and schools, seeking to offer a full living environment, not just housing.