This course provides a survey of the law of property. We will examine what it means to “own” something: what can be owned (Animals? Air? Body parts?); in what configurations (What changes when ownership is shared among groups or across time?); and what rights and responsibilities flow from ownership (Who can be excluded from property and who has a right to access it? When may an owner destroy their property or pollute and when must they protect it?). We will also study how those rights can and cannot be redefined: by the state through regulation and eminent domain and by neighbors through use and custom. The focus will be on property in land, in order to facilitate a sustained exploration of how the legal treatment of physical space shapes social and economic life, and to allow particular attention to questions of land use and housing.