A construction lien is a statutory interest in privately owned real property.  It is granted to individuals and entities who provide labor, materials, or services that improve the property.  Because the construction lien is an interest in real property, it has the potential to affect other competing interests in the same property. Oregon’s construction lien law addresses those competing interests and establishes rules for resolving conflicts between them.  Balancing those interests, however, results in complex legal rules and procedural requirements that are reflected in Oregon’s lien statutes and appellate opinions interpreting them.