Finding land in Pinal County and envisioning a new subdivision, data center, or solar farm is only the beginning. Many first-time developers expect a simple process: submit plans, get approval, and start building. In reality, the path to breaking ground is filled with regulatory requirements, technical studies, and potential pitfalls that can stretch timelines from months to years. Missing a single step can delay or derail a project entirely.
Stephen Miller, District 3 Supervisor on the Pinal County Board of Supervisors, has overseen hundreds of development proposals. According to Miller, most delays happen not because of red tape, but because developers underestimate the complexity and sequence of approvals. Here’s a clear breakdown of what the process actually involves – and where most projects get stuck.
Step 1: Secure Your Water Source
Who’s Involved: Developer, water providers, Arizona Department of Water Resources
Typical Timeline: Months to years, depending on location
Common Pitfall: Many developers believe they can address the water supply later in the process. This is a costly mistake. Without a Certificate of Assured Water Supply from the state, most single-family subdivisions in Pinal County cannot proceed. “Before they start spending money on designing a project, they’ll have already contacted the water companies,” Miller says. Rental properties and some commercial projects face different requirements, but for-sale homes require state certification of a 100-year water source.
Step 2: Line Up Utilities
Who’s Involved: Developer, electric companies, sewer providers
Typical Timeline: Variable, depending on provider and site
Common Pitfall: Utilities are not managed by the county. Developers must independently secure electric, water, and sewer connections. In unincorporated areas, this could mean arranging for private sewer systems or septic tanks. If a site is distant from existing electrical infrastructure, new lines may be required. Early coordination is essential, as utility delays can halt a project regardless of other approvals.
Step 3: Conduct Transportation and Flood Studies
Who’s Involved: Developer, county planning staff, engineers
Typical Timeline: Several weeks to months
Typical Cost: Tens of thousands of dollars
Common Pitfall: Pinal County’s flat terrain masks significant drainage challenges. “There’s a lot of washes and drainage and sheet flow that has to be mitigated when you do these developments,” Miller notes. Developers must fund studies to assess how their projects will affect traffic, road capacity, and flood risk. If new intersections or road upgrades are needed, the costs are usually borne by the developer.
Step 4: Apply for a Zoning Change
Who’s Involved: Developer, county planning staff, Board of Supervisors
Typical Timeline: Several months from application to vote
Common Pitfall: Most raw land in Pinal County is zoned for low density—one unit per acre. Higher-density projects, such as typical subdivisions, require a zoning change. This process includes public hearings, notification of neighbors, and a vote by the Board of Supervisors. Projects that increase traffic, noise, or alter neighborhood character often face resistance. “If it’s an appropriate use in this place, I think they should pretty much have the right to do it,” Miller says, but approvals are never guaranteed if there’s substantial opposition.
Step 5: Get Your Permits
Who’s Involved: Developer, county building department
Typical Timeline: Weeks after zoning and studies are approved
Common Pitfall: After clearing the major hurdles, some developers overlook final inspections or assume verbal approvals are sufficient. Every step must be documented; missing paperwork or skipped inspections can delay construction even at the finish line.
Where Most Developers Get It Wrong: Common Myths
Myth 1: “Water approvals are automatic if you’re near a city.”
Reality: Proximity to a city can help, but a Certificate of Assured Water Supply is still required. Land within city limits may have easier access to water rights, but unincorporated areas face stricter scrutiny. Always confirm water status before purchasing land.
Myth 2: “Zoning changes are just a formality.”
Reality: Zoning changes require public hearings, and neighbors can and do object. If a project doesn’t match the area’s character or raises traffic concerns, expect pushback. As Miller puts it, “Your property rights start and stop at your property,” but that doesn’t guarantee approval.
Myth 3: “The county handles utilities.”
Reality: The county reviews zoning and infrastructure impacts, but developers are responsible for arranging and funding all utility connections. Lack of planning on utilities is a frequent cause of project delays.
What to Watch For
Red Flags: Be wary if someone promises “no problem” on water approvals without documentation. Zoning changes that appear rushed or bypass public input are also a sign that something is amiss.
Key Questions to Ask Before You Buy or Build:
– Does the land have a Certificate of Assured Water Supply, or is one attainable?
– What is the current zoning, and what density does it allow?
– Are flood zones or drainage issues present that require mitigation?
– What traffic studies or road improvements will the county require?
Jargon Buster
Certificate of Assured Water Supply: State-issued proof that a development has a 100-year water source—mandatory for most single-family subdivisions.
Zoning Change: The formal process to alter how land can be used, such as increasing allowable housing density.
Flood Mitigation: Engineering measures to control water flow and prevent flooding when building on undeveloped land.
The Bottom Line
Getting a major project approved in Pinal County is a detailed, multi-step process. Water certification, zoning changes, and flood studies all require time, documentation, and coordination with multiple agencies. Skipping a step or assuming requirements will be waived can cost months and significant money. As Miller explains, the county’s role is to guide rather than obstruct, but developers who plan and understand the process move through approvals much faster than those who don’t.
About the Expert: Stephen Miller is the District 3 Supervisor on the Pinal County Board of Supervisors and a former chairman. His district includes Casa Grande, Coolidge, Eloy, and the surrounding areas. Before entering public service, Miller worked as a contractor on residential and commercial projects.
This article is based on information provided by the expert source cited above. It is intended for general informational purposes only and does not constitute legal, financial, or real estate advice. Readers should conduct their own research and consult qualified professionals before making any real estate or financial decisions.
