Stakeholders urge Tucson Commission to delay zoning amendments for data centers

A proposed zoning amendment in Mesa is stirring debate among local stakeholders, particularly regarding its significant 1,400-foot setback requirement for data centers. This distance marks a drastic shift from the typical 15 to 30 feet seen in General Industrial (GI), Heavy Industrial (HI), and Light Industrial (LI) zones. Critics argue that such a large buffer, especially when adjacent to residential areas, lacks clear benefits and could exacerbate space shortages in the city.

During the Planning and Zoning Meeting on June 11, 2025, concerns were raised about the implications of a 60-foot height limit for data centers. Industry representatives highlighted that this restriction could hinder functional design, as data centers often need greater internal clearances for equipment and cooling systems. They urged the commission to reconsider this limit, especially if adequate architectural screening is provided.

Parking requirements also came under scrutiny, with a proposed ratio of one space per 1,000 square feet potentially leading to underutilized lots. Stakeholders warned that this could result in unnecessary paving and contribute to heat island effects, calling for a more tailored approach to parking based on actual usage.

Additionally, the proposed mechanical yard location requirements were criticized for complicating the siting of essential systems. The suggestion was made to adopt a performance-based approach that emphasizes effective screening while allowing for greater flexibility.

In a call for collaboration, representatives from the Arizona chapter of the 7 by 24 Exchange urged the commission to delay the adoption of the amendment and hold a stakeholder meeting. They emphasized the need for public discussion to ensure that the standards reflect both community needs and operational realities.

As the city navigates these complex zoning issues, the outcome of this proposed amendment could have lasting implications for Mesa's industrial landscape and its relationship with local businesses.