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 Colorado, construction law encompasses a wide range of legal areas as they relate to the construction industry. This includes the regulation of mechanic's and materialmen's liens, which are legal claims made by contractors and suppliers for payment for work performed or materials provided. Under Colorado law, such liens must be filed within a specific time frame after work is completed or materials are supplied, and there are detailed procedures for enforcing and removing these liens. Construction contracts in Colorado are governed by contract law principles, and these agreements must comply with state requirements, including licensing and consumer protection statutes. Employment law is also a critical aspect, covering worker safety, wage requirements, and labor relations. Personal injury law intersects with construction law in cases of accidents and injuries on construction sites, where negligence and liability issues are addressed. Insurance law is relevant in terms of coverage for various risks associated with construction projects. Additionally, zoning and real estate laws in Colorado affect where and how structures can be built, including compliance with building codes and obtaining the necessary permits. Overall, construction law in Colorado is a complex field that requires navigating multiple legal disciplines to ensure compliance and resolve disputes.