Commercial property is real estate that is used for business activities. Commercial property usually refers to buildings that house businesses, but can also refer to land used to generate a profit, as well as large residential rental properties. Commercial property includes office buildings, medical centers, hotels, malls, retail stores, multifamily housing buildings, farm land, warehouses, and garages. In many U.S. states, residential property containing more than a certain number of units qualifies as commercial property for borrowing and tax purposes.