Squatting
Squatting,
originally uploaded by Your Teacher.

Squatting is the act of occupying an abandoned or unoccupied space or building that the squatter does not own, rent, or otherwise have permission to use. Squatters often claim rights over the spaces they have squatted by virtue of occupation, rather than ownership; in this sense, squatting is similar to (and potentially a necessary condition of) adverse possession, by which a possessor of real property without title may eventually gain legal title to the real property.