By Justin Matthews | Pinal Post
Key Points
- Casa Grande annexed 1,271 acres on Dec. 1, extending city limits south to Interstate 8.
- The land sits along the Thornton Road corridor near Lucid’s AMP-1 facility.
- Council approved five related actions, including annexation, a General Plan change, and rezoning.
- A total of 1,308 acres were rezoned: 1,198 to Industrial (I-2) and 110 to Community Services (B-4).
- I-2 zoning prohibits all housing, including single-family, multifamily, and high-density units.
- The land is owned by Pinal County and leased to Lucid under a 2022 three-party development agreement.
- Lucid holds a purchase option on the land that becomes available next year.
- No development plans were approved; any future projects will require a major site plan review.
- Infrastructure can be served by existing utilities, according to the city’s Infrastructure and Services Plan.
- The annexation strengthens continued industrial growth along the I-8 corridor, where several major energy and data projects have recently been approved.
Casa Grande City Council unanimously approved annexing approximately 1,271 acres on December 1, 2025. The Project Saguaro annexation sits generally between Selma Highway and Interstate 8 on both sides of Thornton Road, with several parcels north of Selma near Chuichu Road and Burris Road. The annexation extends city limits to Interstate 8, creating a significant new industrial zone. Residents should expect future development in this corridor to follow city regulations and design standards rather than county rules.
