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Z250034 — Warehousing, manufacturing, energy production, and data center in Maricopa County, AZ

This 316.39-acre rezoning from Rural-43 to IND-3 IUPD will enable large-scale industrial development including warehousing, manufacturing, energy production, and a data center on previously undeveloped land in the Tonopah area. The project includes a 20-acre commercial reserve and requires road dedications and floodplain compliance, with subsequent Plans of Development to be submitted for administrative approval. Developers should note the modified development standards (80' building height for industrial, 150' for energy production, 75% lot coverage with solar/battery storage exclusions, and reduced parking/loading requirements for data centers) and significant engineering conditions including floodplain re-delineation, roadway dedications, and traffic impact analysis requirements.

Case number	Z250034
Type	Rezoning
Location	NWC of Encanto Blvd. and Wintersburg Rd. in the Tonopah area, Maricopa County, AZ
County	Maricopa County
Acreage	316.39
Current zoning	Rural-43
Requested zoning	IND-3 IUPD
Proposed use	Warehousing, manufacturing, energy production, and data center
Petitioner	Michelle Santoro, Gammage & Burnham
Owner	313 Wintersburg LLC and Wintersburg Four LLC
Hearing	2026-06-10
Hearing body	Board of Supervisors
Staff recommendation	approve with conditions
Status	new

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First seen — 2026-07-26: First seen on an agenda (backfilled from our archive) · Board of Supervisors

Also on the 2026-06-10 Maricopa County agenda

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