The real estate industry encompasses the many facets of property, including development, appraisal, marketing, selling, leasing, and management of commercial, industrial, residential, and agricultural properties. This also includes buildings, fixtures, roads, structures, and utility systems. This industry can fluctuate depending on the national and local economies, although it remains somewhat consistent due to the fact that people always need homes and businesses always need office space. Types of real estate includes Land, Residential real estate, Commercial real estate, and Industrial real estate.