The land development process turns raw acreage into finished, recorded lots a builder can buy. In Arizona it runs in a fixed order: buy the land and test it, secure the zoning and general plan designation, get a preliminary plat approved, design and assure the infrastructure, record the final plat, then sell lots. Each step has to clear before the next one means anything.
Step 1: Acquire the land and test it
Development starts with a purchase or a control right, and a test of the parcel before real money goes into design. The questions are plain. Can the parcel get legal access? Can it get water and sewer or an approved alternative? Is any of it in a floodplain? Does current zoning allow the lots you want, and if not, how hard is the change?
Buying as-is means the buyer carries those unknowns. That is why developers test first and why many landowners see option agreements instead of straight sales. We cover that structure in land option agreements.
Step 2: Entitle the land
Entitlement is the public approval that says what can be built and where. It usually means a rezoning, and sometimes a change to the local general plan first.
A.R.S. 9-461.06 sets the rules for general plan amendments in cities and towns. A major amendment is a substantial change to the community's land use mix. It requires public hearings, and adoption takes the affirmative vote of at least two-thirds of the governing body. Rezoning follows its own hearing path. The full sequence is in our entitlement overview and, for rezonings specifically, how to rezone property in Arizona.
Step 3: Preliminary plat
A preliminary plat is the tentative map of the lots, streets and tracts. Maricopa County states that a preliminary plat is required when land is divided into six or more parcels for development, and that the process includes meetings with county staff. Cities work the same way in principle. Under A.R.S. 9-463.01, a municipality can require a preliminary plat as a condition before a final plat may be submitted.
Review also tests the site. The same statute lets a city restrict or condition subdivision of land that is unsuitable because of flooding, poor soils or a high water table.
Cities can add conditions at this stage. A.R.S. 9-463.01 lets a municipality require reservation of land for parks, recreation, schools and fire stations, provided it adopted a relevant plan at least 30 days before the preliminary plat was filed. The acquiring agency then has one year after recording to agree to buy the reserved land at fair market value plus specified costs, or the reservation ends. For subdivisions of ten or fewer lots, a city may waive or streamline the preliminary plat step and scale infrastructure requirements to the project's impact, but dust-controlled access and drainage cannot be waived.
Step 4: Water, utilities and the public report
Water is the gate that stops the most projects. Inside an Active Management Area, final plats of subdivided land generally need either a certificate of assured water supply or a written commitment of water service from a qualifying provider (A.R.S. 9-463.01). Outside an AMA, approval depends on whether the director of the Department of Water Resources has found an adequate water supply, with limited exemptions. See assured water supply in Arizona.
Separately, A.R.S. 32-2181 requires a subdivider to notify the Arizona Department of Real Estate before offering subdivided lots for sale or lease. The notice covers title, permanent access, sewage and utilities, and a true statement of assurances for off-site improvements such as roads and utilities. The Department then issues the public report buyers receive.
Step 5: Engineering plans and assurances
Once the preliminary plat is approved, the engineers draw the horizontal improvements: streets, water and sewer lines, drainage, flood control and dry utilities. A.R.S. 9-463.01 requires engineering plans for streets, utilities, drainage and flood control as a condition of recording an approved final plat. It also requires dedication of public streets and utility easements, and it allows the city to demand performance bonds, assurances or other security so the work is actually built to minimum standards.
That is the point of an assurance. The lots can be recorded and sold before every road is paved, because the bond or other security covers the cost if the developer does not finish. Maricopa County's final plat package likewise includes related infrastructure plans, and the county says plat approval does not by itself accept streets into its maintenance system.
Step 6: Final plat and recording
The final plat must substantially match the approved preliminary plat. In unincorporated Maricopa County, the county says final plat submittals should follow preliminary approval within two years unless an extension is obtained. Approval is administrative, and the Board of Supervisors signs the plat before it is recorded. Cities record their approved plats through the county recorder.
Recording is the legal birth of the lots. Until the plat is recorded, there are no lots, only one large parcel.
Step 7: Build the improvements
With plans approved and security posted, the developer grades the site and builds streets, utilities and drainage. Fees arrive here too. A.R.S. 9-463.05 lets cities charge development fees for water, wastewater, drainage, streets, fire and police facilities and some parks. The statute caps a fee at the development's proportionate share of cost. For residential development, fees are generally paid when construction permits are issued, though a development agreement may allow deferral secured by a bond or letter of credit. The fee schedule changes by jurisdiction, so read it before you model a project. More detail in Arizona development impact fees.
Step 8: Sell the lots
Finished lots go to home builders. A subdivider selling lots must have cleared the public report requirement first. Builders buy lots that are platted, served and ready for permits, not raw land with open questions. That is the reason most raw acreage passes through a developer before it reaches a builder.
What adds time and risk
- Zoning mismatch. A rezoning or general plan amendment adds public hearings and a vote that can fail.
- Water. A parcel with no certificate or adequate water finding cannot move to a recorded plat in the usual way.
- Site conditions. Flood, soils and groundwater can limit lots or add engineering cost.
- Frontage and access. Off-site roads and utilities are part of the assurance package.
- Fee changes. Fee amounts and timing are set locally and change.
Plat timing matters too. Maricopa County expects the final plat within two years of preliminary approval unless an extension is obtained, so a stalled project needs a plan for that clock.
Smaller splits are a different path
Dividing land into five or fewer lots is not a subdivision under A.R.S. 32-2101, and counties handle those as land divisions with a limited review. That path skips the plat, the public report and often the water test, which is exactly why it draws regulatory attention. See wildcat subdivisions in Arizona. To plan a true subdivision, start with how to subdivide land in Arizona.
Selling land that needs this work
Most landowners do not want to carry this process, and many parcels do not need to wait for it. Red Dirt Property buys and entitles land across all 15 Arizona counties. We underwrite parcels against our own statewide parcel data, buy as-is, and handle entitlement after closing, with no agent commission on our purchases. If your land has development potential but needs approvals, talk to us about selling to a developer. You can also see what we do.
Rules change. The county or city planning office and an Arizona attorney have the final word on your parcel.