What Is Eminent Domain? The State Buying What You Will Not Sell

The justification is a holdout problem. A project requiring many contiguous parcels gives each owner a veto, and an owner who recognises that can extract the entire value of the project rather than the value of their land, which means socially worthwhile projects fail or cost far more than they should. Compulsory acquisition removes the veto while requiring payment, converting a negotiation the state cannot win into an administered transaction. The power is ancient and near universal, called eminent domain in the United States, compulsory purchase in Britain, expropriation in much of Europe and Latin America and resumption in parts of Asia, and it is constrained everywhere by two requirements that appear in constitutional texts: that the taking be for a public purpose, and that compensation be paid. The American constitution's fifth amendment states it compactly, prohibiting the taking of private property for public use without just compensation, and the two conditions in that phrase are where every dispute lives.

The procedure varies and the structure is consistent:

• •A statutory authority must exist, since the power is not general and must be conferred for a particular class of project
• •A formal order or declaration identifying the land precisely, published so affected owners have notice
• •An objection period and usually a public inquiry or hearing, at which the necessity and the public benefit can be challenged
• •Confirmation by a minister, court or other authority independent of the acquiring body
• •A valuation process, with compensation normally assessed at open market value disregarding any effect of the scheme itself on that value
• •Additional heads of compensation in many systems, including disturbance payments for relocation costs, loss of business goodwill, severance where part of a holding is taken and injurious affection where the remainder is devalued
• •A right of appeal on both the principle and the amount, with disputes over value frequently resolved by a specialist tribunal

The contested question is whether a taking that transfers land from one private owner to another can count as public use, and the American case of Kelo against the City of New London in 2005 made it politically explosive. A city used eminent domain to acquire homes, including those of owners who refused to sell, for an economic development plan involving a private corporation, arguing that the resulting jobs and tax revenue constituted a public benefit. The Supreme Court upheld it by a narrow majority, holding that economic development qualifies as public use, and the decision provoked an extraordinary reaction across the political spectrum, with a large number of states passing laws restricting economic development takings within a few years. The development in question was never built and the site remained vacant for years, which became a standard argument against such takings. Comparable disputes occur everywhere, over regeneration schemes, mineral extraction, infrastructure for private utilities and land assembly for large developments.

Market value compensation is easy to administer and systematically undercompensates in ways the law mostly acknowledges and does not fully remedy. An owner who did not want to sell values the property above market price by definition, since otherwise they would have sold, and that surplus is not compensated. Attachment to a home, community ties, the disruption of moving and the loss of a business's specific location are partially covered in some systems and not in others. Tenants and occupants without ownership interests frequently receive far less than owners despite losing as much. Compulsory acquisition has also been used disproportionately against poorer and politically weaker communities, with urban renewal programmes in several countries clearing neighbourhoods whose residents had least capacity to object, a pattern documented extensively and now cited in reform arguments. Some jurisdictions have responded with additional statutory payments above market value, with requirements to demonstrate that alternatives were considered, and with stronger procedural rights, none of which resolves the underlying point that the price is set by the buyer.

Compulsory acquisition exists because a single holdout can block a project and extract its entire value, so the state substitutes an administered transaction for a negotiation it cannot win. Every system requires a public purpose and compensation, usually market value assessed while disregarding the scheme's own effect on price. The disputed question is whether transferring land to a private developer for economic benefit qualifies, which the Kelo decision answered affirmatively in 2005 and prompted many states to restrict.