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Permitting Authorities / Town of Mt. Crested Butte Building Division

Town of Mt. Crested Butte Building Division

Adopted code

The building permit authority for the Town of Mt. Crested Butte, Gunnison County. The Building Division "is responsible for administering the town's building codes through the permitting process," including implementation and enforcement of "all laws, ordinances, and codes that govern development within town limits," plus building design review preparation for Planning Commission and DDA-district compliance review. NOTE: the town's older site, mtcrestedbuttecolorado.us (a GovOffice-hosted site with stale content, e.g. a 2020 COVID work-from-home notice still on its homepage), is superseded by the current official site, mtcb.colorado.gov, which is used as the source throughout this record.

Jurisdiction
Town of Mt. Crested Butte, Colorado
Jurisdiction type
city
Address
911 Gothic Road, Mt. Crested Butte, CO 81225
Contact
  • url: https://mtcb.colorado.gov/building
  • phone: 970-349-6632
Contractor registration required
true
Registration details
  • license: Per Town of Mt. Crested Butte Ordinance No. 6, Series 2024 (local amendments to the IBC and IRC): "All building permit applications for new construction shall include proof of a current Gunnison County Building Contractor license. The license shall be the type (Class A, Class B, or Class C) associated with the scope of work for the building permit application," and the same requirement applies to "additions and level 2 and level 3 alterations governed by the International Existing Building Code (IEBC) and International Building Code (IBC)" (IBC track) and to "additions and Reconstructions per Appendix AJ of the International Residential Code (IRC)" (IRC/residential track), with the building official having "discretion to waive this requirement." An exemption exists for "Property owners of an individual R1, R2, or R3 unit acting as their own contractor who provide proof of passing the contractor test associated with the Gunnison County contractor license."
Permit process note
Per the Building Division landing page, "Building functions within the department include the implementation and enforcement of all laws, ordinances, and codes that govern development within town limits." Projects go through Design & Permit Review before Building Permit Review/Issuance, then applicants "must schedule inspections for the property," including "town of Mt. CB inspections, electrical, plumbing, fire, and water/sewer" (per the Inspections page, the Town itself schedules only its own building-department inspections — footer, stem wall, slab, culvert/valley pan, rough-in, flow fill, framing, energy & insulation, drywall, and final; electrical is permitted/inspected by the State of Colorado, plumbing by a state plumbing inspector, fire-system inspections by the Crested Butte Fire Protection District, and water service line inspections by the Mt. Crested Butte Water & Sanitation District). Ordinance No. 6, Series 2024 also sets a local ice-barrier amendment for all roofs (see adopted_code) and a Gunnison County Building Contractor license requirement. No page reviewed states in so many words that "a permit is required to reroof" (general language covers "new construction, alterations, and remodels" and the Interior Remodel Permit Policy referenced on the FAQs page was not directly retrievable), so roofing_permit_required is left unset; the Colorado Wildfire Resiliency Code (adopted by the Town, see adopted_code) does explicitly apply to "re-siding or re-roofing projects impacting 25% or more of the structure."
Adopted code
Per the Building Division landing page: "The Mt. Crested Butte Town Council approved an Ordinance adopting the 2021 International Building Codes and the Colorado Model Electric Ready and Solar Ready Code, which is in effect as of January 3, 2025," listing: 2021 International Building Code, 2021 International Residential Code, 2021 International Fire Code, 2021 International Mechanical Code, 2021 International Fuel Gas Code, 2021 International Property Maintenance Code, 2021 International Energy Conservation Code, 2021 International Existing Building Code, the Colorado Model Electric Ready and Solar Ready Code, and the Colorado Wildfire Resiliency Code (adopted via Ordinance No. 6, Series 2024; electrical and plumbing code editions are set by the State of Colorado, which reviews/inspects those trades directly rather than the Town). Ordinance No. 6, Series 2024 contains a local roofing amendment, Sec. 6-31/6-65 "Ice Barriers for Roofs," reading in relevant part: "An ice barrier shall be installed for all roofs. The ice barrier shall consist of a self-adhering polymer-modified bitumen sheet and shall be installed on the entire roof. Exception: Detached accessory structures not containing conditioned floor area" (stated once each for the IBC and IRC amendment sections). The Town's own "Wildfire Resiliency Code Summary" PDF states the Colorado Wildfire Resiliency Code applies to "New construction" and "Re-siding or re-roofing projects impacting 25% or more of the structure," and requires under "Roofing": "Class A roofing materials required," "Roof valleys: minimum 26-gauge metal," "Gutters and downspouts: noncombustible," and "Vented roof openings: noncombustible, corrosion-resistant mesh with 1/8-inch maximum openings."

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