Last week, the Oro Valley Town Council approved new building codes by adopting a set of ten 2024 International Codes. These codes are maintained by the International Code Council (ICC) and updated every three years. Oro Valley last adopted code changes in 2019, when the 2018 editions took effect.
Brings code consistency across southern Arizona
This approval brings Oro Valley’s standards in line with neighboring jurisdictions, including the City of Tucson, Pima County, the Town of Marana, and the Town of Sahuarita. The Golder Ranch Fire District has already adopted the 2024 fire code, and the Town’s amendments align with theirs. Fire officials noted that while new codes address lithium-ion battery storage and solar safety, Oro Valley has required sprinklers in all commercial buildings for more than 20 years, so some changes will have little local effect. The overall goal is to provide consistent regulations for builders and developers across the region.
The codes have no impact on existing homes unless homeowners undertake remodeling, additions, or major system replacements that require a building permit. The updated standards apply only to new construction and permitted remodels. For the first time, the Town also adopted the International Existing Building Code (IEBC), which provides flexible standards for remodeling and reusing older structures. Staff emphasized that this code will make it easier and less costly to adapt existing buildings while maintaining safety.
Minimal added costs for new homes
The costs of these new standards will add about $1,500 to $3,000 to the price of new homes in 2026, largely due to updates in the International Residential Code.
International energy conservation code not adopted
The Council did not adopt the 2024 International Energy Conservation Code. According to staff, these codes are very costly, adding $6,000 to $9,000 per home. In addition, there are concerns about software and training readiness. Staff also noted that future revisions may reduce both cost and stringency.
Long-term benefits for those building new homes
Though the updates may raise construction costs, they also bring important benefits. The new standards improve structural resilience against wind and seismic events, strengthen fire safety provisions, and expand accessibility requirements. Over time, updated energy codes are expected to reduce household utility costs by an estimated $300 to $500 per year, improve indoor comfort and air quality, and may also help lower property insurance premiums through improved ISO ratings. Staff noted that Oro Valley’s rating could improve from Class 4 to Class 3 for residential properties and from Class 3 to Class 2 for commercial properties.
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