Water rightWater right in water law is the right of a user to use water from a water source, e.g., a river, stream, pond or source of groundwater. In areas with plentiful water and few users, such systems are generally not complicated or contentious. In other areas, especially arid areas where irrigation is practiced, such systems are often the source of conflict, both legal and physical. Some systems treat surface water and ground water in the same manner, while others use different principles for each.
EasementAn easement is a nonpossessory right to use and/or enter onto the real property of another without possessing it. It is "best typified in the right of way which one landowner, A, may enjoy over the land of another, B". An easement is a property right and type of incorporeal property in itself at common law in most jurisdictions. An easement is similar to real covenants and equitable servitudes. In the United States, the Restatement (Third) of Property takes steps to merge these concepts as servitudes.
Air rightsIn real estate, air rights are the property interest in the "space" above the earth's surface. Generally speaking, owning or renting land or a building includes the right to use and build in the space above the land without interference by others. This legal concept is encoded in the Latin phrase Cuius est solum, eius est usque ad coelum et ad inferos ("Whoever owns the soil, it is theirs up to Heaven and down to Hell.
Droit riparienLe droit riparien (en anglais Riparian water rights ou simplement riparian rights) est un système d'allocation de l'eau entre ceux qui possèdent des terres le long de son parcours. Il a ses origines dans la common law anglaise. Les droits d'eau ripariens existent dans de nombreuses juridictions héritières de la common law, comme le Canada, l'Australie et les États de l'est des États-Unis.
Terre de la CouronneUne terre de la Couronne (en crown land) est, dans le cadre du système juridique des royaumes du Commonwealth, un territoire appartenant au monarque incarnant la Couronne, c'est-à-dire à l'État. Elle correspond au concept traditionnel de l’entail ou fee tail, un domaine reçu en héritage qui ne peut être aliéné par son propriétaire, la monarchie. L'ensemble des biens possédés par les souverain doit être considéré comme domaine public et est à distinguer de la propriété privée du monarque.
