Scottsdale, Ariz. implements green building code for new commercial, multifamily construction

As communities across the west grapple with drought conditions amid a rapid population increase, some are passing green building laws to reduce water consumption. Scottsdale, Ariz. is the latest community to take such action with the implementation of the 2021 International Green Construction Code.

The mandatory code, which was adopted in December and took effect July 1, applies to all new commercial and multifamily buildings. Together, the new requirements are projected to cut 20% of water use in each new building, and reduce their greenhouse gas emissions by about 13% when compared to structures that don’t fall under the same requirements. Notably, Scottsdale is one of only a few communities nationwide that’s adopted the green building code, and the first to do so in Arizona.

“The code change helps Scottsdale strengthen the resiliency of buildings, reduce environmental impacts, protect natural resources, and adapt to new building technologies,” reads a statement describing its impact published by the city. “Environmental benefits include conserving natural resources, improved air quality, enhanced occupant comfort and health, reduced waste streams, low environmental impactful materials and minimized strain on local infrastructure.”

Among other things, the green code will require new buildings to have site shading features for cooler pavement; high efficiency plumbing fixtures and smart irrigation controls; electric vehicle charging infrastructure; on-site renewable energy; biodiverse certified lumber for wood framinig, sheathing and flooring; and low-VOC interior paints, coatings, adhesives, sealants and flooring.

Environmental benefits will include mitigation of the heat island, reduced water consumption, more recycling and repurposing of materials, and improved indoor air quality. The statement also notes economic benefits like lower operating costs, life-cycle cost savings and improved property value.

Implementation of the green building code aligns with the city’s broader, voter-approved General Plan 2035 that has a goal of reducing energy consumption and greenhouse gas emissions, and mitigating the city’s heat island effect.