All construction projects in Fort Collins must follow adopted building codes. Codes apply to new construction, remodels, additions and repairs.
If your permit was submitted on or after Apr. 15, 2022, the Current Building Codes below (2021 International Codes and local amendments) apply.
The documents on this page are provided for printing purposes. For assistance viewing or reading these documents, please contact the City's ADA Coordinator via email adacoordinator@fortcollins.gov or phone: 970-416-4254.
The 2024 International Building Codes have been adopted and will be effective beginning April 1, 2026.
The following codes have been adopted and will be effective beginning April 1, 2026:
For any questions about new code adoption, contact us via email at buildingservices@fortcollins.gov.
The City issues official interpretations to clarify code requirements.
Fort Collins has adopted building codes since 1924. Key milestones include:
View full code chronology here(PDF, 147KB).
buildingservices@fortcollins.gov
970-416-2740
Monday-Friday | 8 a.m.-5 p.m.
281 N. College Ave.
Fort Collins, CO 80524