210 U.S. 373 (1908), U.S. Supreme Court
Londoner v. City of Denver is a foundational procedural due process case that draws a critical line between legislative actions that affect the public at large and adjudicative determinations that target a small, identifiable group based on individualized facts.
When a municipality delegates to local officials the power to make individualized special assessments against a small number of property owners based on particularized facts, does the Due Process Clause require notice and an opportunity to be heard before the assessment becomes final?
When the legislature, instead of itself fixing a tax or charge, delegates to an administrative or municipal body the authority to make individualized determinations that impose a specific financial burden on a small number of persons based on particular facts concerning them, procedural due process under the Fourteenth Amendment requires that those persons be given notice and a meaningful opportunity to be heard before the assessment becomes final. The hearing must permit the affected persons to present argument and, if necessary, evidence to the decision maker with authority to determine the assessment; mere opportunity to submit written complaints may be insufficient where facts are in dispute. By contrast, no individualized hearing is constitutionally required for generally applicable legislative decisions affecting a broad class, such as across-the-board tax rates.
Yes. Because Denver delegated to local officials the power to determine, based on individualized facts, the amount of a special assessment owed by a small group of property owners, due process required a hearing at which those owners could present argument and, if needed, evidence to the body empowered to decide. The city's refusal to afford such a hearing violated the Fourteenth Amendment. The Supreme Court reversed the judgment upholding the assessment.
Londoner is a cornerstone of procedural due process and administrative law. It establishes that when government action targets a small number of people through individualized determinations, due process generally requires an opportunity to be heard before the decision is finalized. The case is the counterpoint to Bi-Metallic Investment Co. v. State Board of Equalization, which held that no individualized hearing is required for broadly applicable, legislative-type decisions. Together, they frame the legislative–adjudicative divide that guides whether and what kind of process is due. For law students, Londoner provides the analytical template: identify whether the government decision is individualized or general, assess the nature of the private interest at stake, and then evaluate whether the procedure includes meaningful notice and an opportunity to present evidence and argument to the actual decision maker.