Do I need a permit for window or exterior door replacement in Unincorporated San Juan County?
It depends. Whether window or exterior door replacement needs a permit in Unincorporated San Juan County comes down to the details of your project.
Enlarging an opening, moving it, or cutting a new one is structural work. Exemptions that cover replacing a unit in its existing opening do not reach it, so a permit is required. Changing an opening usually means a new or resized header, and many jurisdictions want a beam detail or engineering before they will issue, so allow for that in the schedule. Window and door replacement is not on Utah's adopted IRC R105.2 exempt list; cutting, enlarging, or adding openings clearly needs a permit, and many offices also require one for same-size replacements. Utah's amended IRC Chapter 11 (15A-3-202 and 15A-3-203) sets a maximum U-factor of 0.32 for windows and glazed doors enclosing conditioned space. Utah amends IRC R109.1.5 so the building official may inspect the weather-resistant exterior wall envelope and flashings. An existing bedroom egress window that met the code when the room was finished does not have to be enlarged where the change would compromise the structure or cannot meet other requirements (Utah IRC R102.7.2).
Documents you may need
- Permit application on the standardized Utah building permit formLikely required
- Property address and tax parcel identification numberLikely required
- Window and door schedule with sizes and U-factorsSometimes required
- Header and framing details if openings are enlarged or addedSometimes required
- Contractor name and license number, or Owner/Builder Certification AgreementSometimes required
Possible inspections
- Framing inspection when openings are cut or enlarged
- Weather-resistant barrier and flashing inspection where required
- Final inspection
Frequently asked questions
- Do I need a permit for window or exterior door replacement in Unincorporated San Juan County?
- It depends. Whether window or exterior door replacement needs a permit in Unincorporated San Juan County comes down to the details of your project. The documents and inspections sections on this page list what the building department typically asks for.
- Who issues the permit in Unincorporated San Juan County?
- The local building department for Unincorporated San Juan County handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.