In international law, a condominium is a territory in which two sovereign powers have equal rights. Although a condominium has always been recognized as a theoretical possibility, condominiums have been rare in practice. Vanuatu was once a French-British condominium (see New Hebrides), and under French law Andorra was once considered to be a French-Spanish condominium, although it is more commonly classed as a co-principality. The biggest difficulty with condominiums/condominia is solving disputes between the two sovereign powers, and ensuring co-operation between them; which is one reason why so few have existed in practice. In 2001, the British government proposed sharing sovereignty of Gibraltar with Spain, but this was decisively rejected by the people of Gibraltar in a referendum in 2002.
A condominium is also a form of housing tenure