What building codes apply in Cave Creek, Arizona?

A home built in the Town of Cave Creek is checked against the 2024 family of International Codes for most work, plus the 2023 National Electrical Code and a few 2025-edition codes. The main code for a custom house is the 2024 International Residential Code (IRC). The editions changed on January 1, 2026, adopted by the Town Council in Resolution R2025-01. One wrinkle matters for homes: Cave Creek keeps the 2018 residential energy code rather than the 2024 energy code. The Town, not the county or the state, enforces all of this inside town limits.

Which codes Cave Creek enforces

Cave Creek enforces the 2024 I-codes for most construction, with the 2023 electrical code and several 2025-edition codes layered in. Here is the working list the Town's Building and Fire Code Compliance Division enforces:

• 2024 International Residential Code (IRC): one- and two-family homes and townhouses. This is the code a custom-home builder lives in day to day.
• 2024 International Building Code (IBC): larger and commercial structures.
• 2024 International Mechanical Code (IMC): heating, cooling, and ventilation.
• 2024 International Fuel Gas Code (IFGC): gas piping and gas appliances.
• 2023 National Electrical Code (NEC): all wiring and electrical work.
• 2025 International Plumbing Code (IPC): water supply, drains, and fixtures.
• 2025 International Fire Code (IFC): fire and life-safety provisions.
• 2025 International Existing Building Code (IEBC): work on existing structures.
• 2024 International Pool and Spa Code (ISPSC): pools and spas.

For a single-family home, Cave Creek uses the 2018 residential energy code, not the 2024 energy code. So your house follows a lighter, older energy path. The Town of Cave Creek is the authority having jurisdiction (AHJ) for these codes. That term means the body with legal power to adopt, amend, and enforce the rules. Here, that is the Town Building Official. For the full breakdown, see our reference page on Cave Creek's adopted building codes.

What an "adopted code edition" means for you

An adopted code edition is the specific year-version of a model code that a town has voted into law, and it sets the exact rules your house must meet. The International Code Council publishes new editions every three years (2018, 2021, 2024). A town does not automatically use the newest book. It votes to adopt an edition, then enforces that one until it adopts a newer one. Cave Creek adopted the 2024 cycle for most codes, but it picked the 2025 editions for plumbing and fire, and it held the residential energy code at 2018.

This mix matters because editions differ in real, buildable ways. Your framing follows the 2024 IRC. Your wiring follows the 2023 NEC. Your fixtures follow the 2025 IPC. Your home energy sheet follows the 2018 energy code. If your designer reuses one old set drawn to a single year, several of these will not line up, and plan review will send the package back with corrections before a permit issues.

The codified Town Code states the adoption plainly. Chapter 151 opens its building section this way:

Effective January 1, 2026, there is herewith adopted, by reference, The International Building Code, 2024 Edition, as published by the International Code Council, adopted as a public record by Resolution No. R2025-01 of the Mayor and Council of the Town of Cave Creek.

Each code in the stack carries its own section in Chapter 151, and each section lists the Town's local amendments to that code. Local amendments are the Town's own edits. They cover desert-specific items like grading, drainage, fire access, and permit steps. So the rule you build to is the published edition as changed by Cave Creek's amendments. The base book plus those edits together form the rule.

Why Cave Creek differs from its neighbors

Cave Creek sits near the leading edge of the metro's code range, which spans the 2018 edition to the 2024 edition across nearby areas, and that gap is the single biggest reason a plan that passes in one place can fail in another. Each city adopts on its own schedule, so neighbors land on different editions:

• Unincorporated Maricopa County, which wraps around the town, still uses the 2018 I-codes and 2017 NEC. This is the key one for Cave Creek, because the town line decides whether the Town or the county reviews your build.
• Carefree, right next door, runs the 2018 I-codes and 2017 NEC, a full cycle behind Cave Creek.
• Fountain Hills moved to the 2024 codes and 2023 NEC for permits filed on or after September 1, 2025.
• Scottsdale runs the 2021 I-codes and 2020 NEC.
• Phoenix runs the 2024 I-codes and 2023 NEC, effective August 1, 2025.

That spread means a set drawn for a rural county lot on the 2018 codes is not automatically right for a Cave Creek town lot on the 2024 codes, and the reverse is also true. The exact rules differ depending on which side of the town line your lot sits. The fix is simple: confirm whether your lot is in the town or the county first, then design to that jurisdiction's edition.

How to confirm the current code with the Town

Confirm the adopted edition directly with the Cave Creek Building and Fire Code Compliance Division before you finalize plans, because editions and amendments change. The Town publishes its adopted codes, the editions, and the effective date on its Building and Fire Code Compliance page. The adopting ordinance text and the per-code amendments live in Cave Creek Town Code Chapter 151. Arizona's broader adoption picture is tracked by the code authors at the ICC Code Adoptions map for Arizona.

Timing is the wrinkle here. The Town's older codes came in under Resolution R2022-03 in 2022, and the current 2024-cycle set replaced them on January 1, 2026. Your code edition is tied to when your application is reviewed, not today's calendar. A permit application started under the prior 2021 code cycle before January 1, 2026 is reviewed case by case. When you apply, the office can confirm exactly which editions and amendments apply to your address.

What a builder must design to

Give your designer, structural engineer, and trades one clear instruction: build to Cave Creek's 2024 I-codes and the 2023 NEC, with the Town's amendments applied, and use the 2018 residential energy code for a house. That single sentence prevents the most common and most expensive plan-review correction, which is a sheet drawn to the wrong edition or to a neighboring jurisdiction's code. In practice, the structural engineer details framing to the 2024 IRC, the plumber works to the 2025 IPC, the electrician wires to the 2023 NEC, and the energy sheet follows the 2018 residential numbers.

When you compare contractor bids, confirm each one is quoting current-code work for the right jurisdiction. Fixing a wall or a panel after a failed inspection costs far more than building it right the first time. Jematell Homes builds in Cave Creek and designs every plan to the town's current adopted editions, so the codes are handled before a single footing is poured. For how these codes get checked at the counter, see Cave Creek Residential Building Permit Requirements, and for the whole project arc, see the steps to building a custom home in Arizona.

Where Jematell Homes comes in

We handle jurisdiction, submittals, and inspections as part of every build. We would rather answer your questions before you build than after, so get in touch any time.

Sources

• Town of Cave Creek Building and Fire Code Compliance
• Cave Creek Town Code Chapter 151: Building Regulations (American Legal Publishing)
• ICC Code Adoptions for Arizona