Permitting Authorities / Alamosa County Building Department
Do you need a permit to replace a roof in Alamosa County, CO?
Adopted code
Alamosa County Building Department
Yes — a permit is required to replace a roof in Alamosa County, CO, issued by Alamosa County Building Department. A roofing permit costs $150 per building (e.g., $200 to re-roof both a house and a detached garage). Re-roof permits may be issued same day, though some applications can take up to 24 hours to review. Building permit valuation is calculated using ICC Building Valuation Data from February of the prior calendar year and Appendix L of the IRC. Applications may be submitted online via the county's Citizen Portal (Cloudpermit).
Jurisdiction
Alamosa County, Colorado
Contact
- url: https://www.alamosacounty.org/179/Building-Department
- phone: 719-589-3812
Roofing permit required
Required
Contractor registration required
Not required
Registration details
- note: "Contractor licenses are not required in the county for construction except for OWTS Installers/Cleaners and Manufactured Home Installers." OWTS installers/cleaners are licensed by the county; manufactured home contractors are licensed by the State of Colorado (DOLA).
Permit process note
A roofing permit costs $150 per building (e.g., $200 to re-roof both a house and a detached garage). Re-roof permits may be issued same day, though some applications can take up to 24 hours to review. Building permit valuation is calculated using ICC Building Valuation Data from February of the prior calendar year and Appendix L of the IRC. Applications may be submitted online via the county's Citizen Portal (Cloudpermit).
Inspection requirements
Inspections require a minimum 24-hour notice and may be scheduled by phone or through the online portal. Plan review timelines are a minimum of 7 business days for residential, 14 business days for commercial, and 72 hours for OWTS applications.
Adopted code
Alamosa County has adopted the 2018 International Building Code (IBC), 2018 International Residential Code (IRC), 2018 International Mechanical Code (IMC), 2018 International Energy Conservation Code (IECC), 2018 International Existing Building Code (IEBC), and 2018 International Property Maintenance Code (IPMC).
Ice & water shield
Required — Alamosa County's Table R301.2(1) exhibit lists "Ice barrier underlayment required: YES" as the county's completed determination for unincorporated Alamosa County.
About ice & water barrierImpact-resistant roofing
Not required — Alamosa County adopted the 2018 International Residential Code effective July 1, 2023 and publishes its local modifications as a single "Exhibit A — Table R301.2(1) Climatic and Geographic Design Criteria" document. That exhibit and the County's Residential Development Guide were reviewed in full, along with the residential application packet and the Land Use and Development Code; none contains an impact-resistance or UL 2218 requirement, and the County makes no amendment to IRC R905.2.4. Roof coverings in unincorporated Alamosa County are governed by the unamended 2018 IRC.
Wind design criteria
Alamosa County's Table R301.2(1) exhibit ("Exhibit A," attached to the county's adopted code amendments) lists: "Ground snow load: 30, except 40 over 7880 ft elevation; Wind design Speed (mph): 115; Topographic effects: NO; Special wind region: NO; Wind-borne debris zone: NO; Seismic design category: C."
Sales & use tax
5.9% combined for UNINCORPORATED Alamosa County (state 2.9% + Alamosa County 3%). The City of Alamosa within the county carries its own additional, hybrid-administered 2% city layer (see the alamosa entry in this same file) — this figure is for unincorporated county area only. Re-verified 2026-08-27 against the January 2026 edition of Colorado Department of Revenue form DR 1002, read from a rendered image of its tables rather than from extracted text: the state, county and city figures above match that edition exactly. Where the text above names the June 19, 2019 revision of DR 1002, that describes the edition the figure was originally taken from and is not a current citation.
The building permit authority for unincorporated Alamosa County, Colorado, in the San Luis Valley. Requires a permit for re-roofing work. Does not require a general contractor license countywide (roofing contractors are not licensed by the county), though onsite wastewater treatment system (OWTS) installers/cleaners and manufactured home installers are licensed.
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