Paradise Valley Adopted Building Codes: The 2015 I-Code Editions That Apply to Your Build

Your house in Paradise Valley is checked against a stack of national model codes that the Town Council voted to adopt, then edited for local conditions. Knowing the exact edition matters, because a 2015 detail and a 2024 detail can call for different framing, wiring, or energy specs. Paradise Valley runs an older cycle than most of the metro, so this matters more here than almost anywhere Jematell builds. This page lists the codes the Town actually enforces today, when it adopted them, and what the gap means for your plans.

Which codes Paradise Valley enforces

Paradise Valley adopted the 2015 family of International Codes (often called I-codes) for almost everything, plus the 2014 electrical code, with one newer code layered on for fire. Here is the current list, published by the Town:

• 2015 International Residential Code (IRC): one- and two-family homes and townhouses. This is the main code for a custom house.
• 2015 International Building Code (IBC): larger and commercial structures.
• 2015 International Mechanical Code (IMC): heating, cooling, and ventilation.
• 2015 International Plumbing Code (IPC): water supply, drains, and fixtures.
• 2015 International Fuel Gas Code (IFGC): gas piping and gas appliances.
• 2015 International Energy Conservation Code (IECC): insulation, windows, duct sealing, and HVAC efficiency.
• 2015 International Property Maintenance Code (IPMC): upkeep of existing buildings.
• 2021 International Fire Code (IFC): fire safety, the one code on a newer cycle than the rest.
• 2014 National Electrical Code (NEC): all wiring and electrical work.

The IRC is the one a single-family builder lives in day to day. The Town of Paradise Valley is the authority having jurisdiction (AHJ) that adopts, amends, and enforces these codes, so its building officials, not the state, have the final word inside town limits.

When and how the Town adopted them

Paradise Valley adopted the 2015 International Codes by Ordinance 2016-02 on May 26, 2016, and codified them in Chapter 5 (Building and Construction) of the Town Code. The fire code was later updated to the 2021 edition on its own track. The Town states the adopted set plainly:

International Codes adopted by Town of Paradise Valley: 2015 International Residential Code, 2015 International Building Code...

The Town also fixes the local design values a Paradise Valley plan must use, including a 115 mph wind design speed, Seismic Design Category B, a 12 inch frost depth, and a moderate-to-heavy termite hazard. Those numbers come from the adopted 2015 IRC as the Town filled in its local Table R301.2 data, so they belong on the structural sheets from the start.

When this comes into play

The edition controls real decisions from day one of design:

• Your energy compliance path (insulation R-values, duct leakage testing, window U-factors) is set by the 2015 IECC, which is three cycles behind Phoenix's 2024 energy code. The proof you submit is different, and usually lighter, than a newer city would demand.
• Outlet spacing, arc-fault and ground-fault protection, and panel sizing follow the 2014 NEC. That is three cycles behind the 2023 NEC a Phoenix job uses, so the required electrical protections differ.
• The fire code is the exception. Paradise Valley enforces the 2021 IFC, newer than its other codes, so fire-access, sprinkler, and water-supply rules follow the more current edition.

Here is a concrete example. Say you submit a custom home plan in Paradise Valley in spring 2026. The plan reviewer checks your framing against the 2015 IRC, your energy sheet against the 2015 IECC, your wiring against the 2014 NEC, and your fire details against the 2021 IFC. If your set was drawn for a Scottsdale lot on the 2021 codes and the 2020 NEC, the energy and electrical sheets are built to newer editions than Paradise Valley adopted, and the mismatch can trigger plan-review corrections even though the newer work is technically stronger.

What this means for you

Hand your designer, structural engineer, and trades one clear instruction: build to Paradise Valley's 2015 I-codes and the 2014 NEC, with the 2021 fire code. That single sentence prevents the most common and expensive plan-review correction, which is a sheet drawn to the wrong edition. Paradise Valley runs an unusually old cycle, so a plan set built for any neighboring city is almost never a clean match. The town is known for large custom estates, and its fire code being a step ahead of its building codes is the wrinkle that catches builders, so confirm fire-access and water-supply details to the 2021 IFC even while the rest of the set follows 2015.

This entry is the anchor for the rest of the Paradise Valley building-codes module. From here, see Paradise Valley Residential Building Permit Requirements for how these codes get checked during plan review, and the certificate of occupancy that ends the process once the home passes final inspection. Paradise Valley is in Maricopa County, so a lot with no town sewer or water routes its septic and well approvals through the county and the state, covered in Maricopa County Septic and Well Requirements . To compare Paradise Valley against the other cities Jematell builds in, see Arizona Building Code Editions by City . For the bigger picture, see the steps to building a custom home in Arizona .

Source

The adopted codes are codified by the Town of Paradise Valley in the Town Code, Chapter 5 (Building and Construction) , with the adopted-edition list and permit details on the Town Building Department page . Arizona's broader adoption picture is tracked by the code authors at ICC Code Adoptions for Arizona .

This page is general information, not a code interpretation. Editions and amendments change, so confirm the current adopted code and any project-specific amendment with the Paradise Valley Building Department before you rely on a specific edition.