IDAHO BUILDING CODES – Adds to existing law to establish provisions regarding single stairway building exceptions.

H 706 allows Idaho local governments to permit apartment buildings (specifically residential group R-2) to have a single stairway for emergency exits, subject to strict safety requirements. These requirements include building height limits (max 6 stories without an occupiable roof), a maximum of four units per floor, mandatory fire sprinkler systems meeting NFPA 13 standards, and detailed stairway specifications like 48-inch width and 2-hour fire resistance. The bill also updates local building code adoption rules, requiring jurisdictions to implement specific versions of the International Building Code by 2027. This change primarily affects new apartment construction in Idaho, offering potential cost savings for developers while maintaining enhanced safety standards.