Founded in 2002, Green Street Realty is a privately held real estate firm headquartered in Champaign, Illinois. The company began as a local property management operation and has since evolved into one of the largest residential and commercial landlords in Champaign County. Its core business centers on the acquisition, development, leasing, and management of multifamily and mixed-use properties, with a strong emphasis on student housing near major university campuses. Green Street Realty manages over 3,000 residential rental units, including more than 5,500 student housing beds primarily located near the University of Illinois at Urbana-Champaign. The company also oversees more than 200,000 square feet of retail and office space, along with a portfolio of single-family homes and market-rate apartments. In 2020, the firm expanded its geographic footprint with development projects in Lafayette (IN), Ann Arbor (MI), Colorado Springs (CO), and Phoenix (AZ), signaling a strategic move toward regional diversification. The firm operates its own development arm, SUB 4 Development Company, which handles construction and project delivery before transitioning assets to Green Street Realty for leasing and management. Asset classes of focus include student housing, multifamily, and retail/office. The company’s top markets include Champaign-Urbana, Charleston, and Decatur, Illinois, with notable exposure in university-adjacent areas.