37 Real estate development and construction in the field of single residential dwelling units contained in multi-unit buildings; Real estate development and construction in the field of residential dwelling units, namely, town homes, condominiums, houses, apartments and affordable housing units; Real estate development and construction in the field of residential retail, commercial, and mixed-use buildings for dwellings, stores, shops, restaurants, offices and business premises; real estate development and construction in the field of a planned community comprised of residential dwelling units, retail, and commercial units, of public spaces, namely, public parks, plazas, piers, playgrounds, and cultural and recreational facilities, and of elementary, middle, secondary, institutional and post-secondary schools; real estate development and construction in the field of parks and trails, plazas, piers, playgrounds, cultural and recreational facilities, and parking facilities, namely, parking structures; Property development of land, namely, planning and laying out of residential dwelling units, of retail, commercial, industrial and mixed-use buildings, of parks and trails, of plazas, piers and playgrounds, of cultural and recreational facilities, and of elementary, middle, secondary, institutional and post-secondary schools; Real estate development services; Real estate leasing of affordable housing residential properties