Construction law is a general reference to various areas of law as applied to the design, engineering, and construction of buildings—including residential buildings and commercial buildings—as well as bridges, roads, pipelines, railroads, water transmission and distribution systems, electrical power transmission systems, sewerage systems, and other structures.

In addition to the law governing the filing and removal of mechanic’s and materialmen’s liens (also known as contractor liens), construction law includes contract law, employment law, personal injury law, insurance law, zoning law, and real estate law.

In Oklahoma, construction law encompasses a wide range of legal areas as they relate to the construction industry. This includes the regulations for filing and enforcing mechanic's and materialmen's liens, which are legal claims made by contractors and suppliers for payment for work performed or materials provided. Oklahoma statutes provide specific procedures for filing these liens to secure payment, and these must be followed precisely to maintain the lien's validity. Construction law in Oklahoma also involves contract law, which governs the agreements between parties involved in construction projects. Employment law is relevant as it pertains to the rights and responsibilities of construction workers and employers. Personal injury law comes into play when there are accidents or injuries on construction sites. Insurance law is important for managing risks associated with construction projects. Additionally, zoning law and real estate law are integral to construction law in Oklahoma, as they dictate the permissible uses of land and the regulations for building on it. All these areas of law work together to provide a legal framework for the construction industry in Oklahoma.