ADU Impact Fees: Glendale vs Peoria
How do adu impact fees rules compare between Glendale, AZ and Peoria, AZ?
Peoria has fewer restrictions than Glendale.
Glendale, AZ
Maricopa County
Ariz. Rev. Stat. section 9-461.18 prohibits Glendale from imposing street impact fees on accessory dwelling units and limits other fees that could undermine the state by-right mandate. Standard building permit and plan review fees apply, scaled to construction valuation. Water and sewer development fees apply because Glendale requires a separate water meter and tap for every ADU, generating new connection charges that ordinary internal conversions in other cities avoid.
View full Glendale rules →Peoria, AZ
Maricopa County
Ariz. Rev. Stat. section 9-461.18 limits the fees Peoria may charge on accessory dwelling units and expressly prohibits requiring off-site street improvements. Standard building permit and plan review fees through Peoria Development and Engineering apply, calculated on construction valuation under the City's adopted fee schedule. Water and sewer development fees may apply if the ADU triggers a new utility connection.
View full Peoria rules →Key Facts Comparison
| Fact | Glendale | Peoria |
|---|---|---|
| Street Impact Fee | Not applied (state preempted) | - |
| State Cap | ARS 9-461.18 limits excessive ADU fees | ARS 9-461.18 limits excessive ADU fees |
| Permit Fee Basis | Construction valuation | Construction valuation |
| Water Meter Fee | Required (separate meter per ADU) | - |
| Water Tap | New tap to main required | - |
| Reference Document | Glendale ADU Update Mar 2025 | - |
| Dedicated ADU Impact Fee | - | None in Peoria |
| Street Improvement | - | Cannot be required (state preempted) |
| Utility Fees | - | Only if new connections required |
| Permit Authority | - | Peoria Development and Engineering |
Highlighted rows indicate differences between cities.
Glendale FAQ
Does Glendale charge an ADU impact fee?
Streets impact fees do not apply to ADUs because state law (Ariz. Rev. Stat. 9-461.18) prohibits requiring street improvements. Glendale does charge standard building permit fees scaled to construction valuation, and unlike many cities, requires a separate water meter and new tap for every ADU, which generates meter and connection fees.
Why is Glendale's ADU water fee higher than other Arizona cities?
Glendale uniquely requires every ADU to have its own city water meter with a new tap to the water main in the street or right-of-way. Most Arizona cities permit ADUs to share the primary dwelling's meter and service, avoiding new connection fees. Plan for separate water meter and tap charges in your Glendale ADU budget.
Peoria FAQ
Does Peoria charge an ADU impact fee?
Peoria does not impose a dedicated ADU impact fee. You pay standard building, plumbing, mechanical, electrical, and fuel-gas permit fees through Development and Engineering based on construction valuation. Water and sewer development fees apply only if a new meter or service connection is installed.
Can Peoria require street improvements for my ADU?
No. Arizona Revised Statutes section 9-461.18 expressly prohibits cities from requiring off-site street improvements as a condition of approving an accessory dwelling unit. Excessive fees that effectively prohibit ADU construction can be challenged under the state preemption framework.
Compare other topics
See how Glendale and Peoria compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool