Deed restrictions are private agreements that restrict the use of the real estate in some way, and are listed in the deed. The seller may add a restriction to the title of the property. Often, developers restrict the parcels of property in a development to maintain a certain amount of uniformity. A deed restriction is a clause in a deed that limits the use of land. However, restrictions that are against public policy are unenforceable, such as those that prohibit people of certain ethnic groups from using a property. Deed restrictions placed within a deed control the use of the property. The restrictions travel with the deed, and cannot generally be removed by new owners.