Natural Property Rights presents a novel theory of property based on individual, pre-political rights. The book argues that a just system of property protects people's rights to use resources and also orders those rights consistent with natural law and the public welfare. Drawing on influential property theorists such as Grotius, Locke, Blackstone, and early American statesmen and judges, as well as recent work in in normative and analytical philosophy, the book shows how natural rights guide political and legal reasoning about property law. It examines how natural rights justify the most familiar institutions in property, including public property, ownership, the system of estates and future interests, leases, servitudes, mortgages, police regulation, and eminent domain. Thought-provoking and comprehensive, the book challenges leading contemporary justifications for property and shows how property both secures individual freedom and serves the common good.