Private restrictions on the use of land can be created by private land use controls, written agreements, or by a developer's general plan. Although a number of these types of restrictions are implemented by the government many of these restrictions are put in place by land developers.
The restrictions can be positve or negative in nature. Some examples of these types of restrictions are defeasible fees, easements, equitable servitudes, and restrictive covenants. Many times land use restrictions are implemented in planned communites which one in every eight people in the United States lives in.