- The structure is designated individually or as a contributing property in the State Register of Historic Places.
- The structure is designated as a landmark by a certified local government.
- The structure is designated as a contributing property in a designated historic district of a certified local government.
Colorado offers an income tax credit to Colorado residents and C Corporations for the preservation and rehabilitation of a qualified historic property. The structure must be at least 50 years old and one of the following must be true: