In the common law, real property (or realty) refers to one of the two main classes of property, the other class being personal property (personalty). Real property generally encompasses land, land improvements resulting from human effort including buildings and machinery sited on land, and various property rights over the preceding.
The concept is variously named and defined in other jurisdictions: heritable property in Scotland, immobilier in France, and immovable property in Canada, United States, India, Pakistan, Bangladesh, Malta, Cyprus, and in countries where civil law systems prevail, including most of Europe, Russia, and South America.
Land use, land valuation, and the determination of the incomes of landowners, are among the oldest questions in economic theory. Land is an essential input (factor of production) for agriculture, and agriculture is by far the most important economic activity in preindustrial societies. With the advent of industrialization, important new uses for land emerge, as sites for factories, warehouses, offices, and urban agglomerations. Also, the value of real property taking the form of man-made structures and machinery increases relative to the value of land alone. The concept of real property eventually comes to encompass effectively all forms of tangible fixed capital. with the rise of extractive industries, real property comes to encompass natural capital. With the rise of tourism and leisure, real property comes to include scenic and other amenity values.
