Maricopa County Impact Fees by Project Type
Where in Maricopa County Are You Building?
Each jurisdiction applies its own fee schedule. Pick yours. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.
Unincorporated Maricopa County: Single-Family Impact Fees
Unincorporated Maricopa County has no published impact fee amounts for a new single-family home (rates sourced July 23, 2026). The schedule below documents the status of each fee.
Sewer Impact Fee (Maricopa County - Unincorporated) and Water Impact Fee (Maricopa County - Unincorporated) are set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.
View the Full Maricopa County Impact Fee Schedule
- Water Impact Fee (Maricopa County - Unincorporated)Requires confirmationMaricopa CountyMaricopa County operates no water utility; unincorporated development connects to a private, municipal or district provider (or a private well), and that provider's connection or capacity fee applies.
- Sewer Impact Fee (Maricopa County - Unincorporated)Requires confirmationMaricopa CountyMaricopa County operates no sewer utility; unincorporated development connects to a private, municipal or district provider (or septic), and that provider's connection or capacity fee applies.
- City Impact Fee (Maricopa County - Unincorporated)$0.00Maricopa CountyUnincorporated area: no city or town development impact fees apply.
- County Impact Fee (Maricopa County - Unincorporated)$0.00Maricopa CountyMaricopa County levies no county development impact fees; its Board-approved Planning and Development fee schedules cover plan review and inspection costs only. Applies countywide, including inside cities and towns.
Where in Maricopa County Are You Building?
Each jurisdiction applies its own fee schedule. Pick yours. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.
Unincorporated Maricopa County: Multifamily Impact Fees
Unincorporated Maricopa County has no published impact fee amounts for a new multifamily unit (rates sourced July 23, 2026). The schedule below documents the status of each fee.
Sewer Impact Fee (Maricopa County - Unincorporated, MF) and Water Impact Fee (Maricopa County - Unincorporated, MF) are set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.
View the Full Maricopa County Impact Fee Schedule
- Water Impact Fee (Maricopa County - Unincorporated, MF)Requires confirmationMaricopa CountyMaricopa County operates no water utility; unincorporated development connects to a private, municipal or district provider (or a private well), and that provider's connection or capacity fee applies.
- Sewer Impact Fee (Maricopa County - Unincorporated, MF)Requires confirmationMaricopa CountyMaricopa County operates no sewer utility; unincorporated development connects to a private, municipal or district provider (or septic), and that provider's connection or capacity fee applies.
- City Impact Fee (Maricopa County - Unincorporated, MF)$0.00Maricopa CountyUnincorporated area: no city or town development impact fees apply.
- County Impact Fee (Maricopa County - Unincorporated, MF)$0.00Maricopa CountyMaricopa County levies no county development impact fees; its Board-approved Planning and Development fee schedules cover plan review and inspection costs only. Applies countywide, including inside cities and towns.
Where in Maricopa County Are You Building?
Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 50,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). * = one-time water/sewer connection charges only; no per-sq-ft impact fee schedule sourced for that jurisdiction. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.
Unincorporated Maricopa County: Commercial Impact Fees
Unincorporated Maricopa County does not currently levy impact fees on commercial development (rates sourced July 23, 2026). The schedule below documents the adopted zero or exempt status for each fee.
View the Full Maricopa County Impact Fee Schedule
- Water Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no water utility. In the unincorporated area, water service and any connection fee are provided by a private or municipal utility or a water district serving the specific location.
- Sewer Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no sewer utility. In the unincorporated area, wastewater is handled by private septic systems or by a private or municipal provider serving the specific location.
- City Development Impact Fee (Maricopa County - Unincorporated, Commercial)$0.00Maricopa CountyNo municipal development impact fees apply in the unincorporated county area.
- County Development Impact Fee (Maricopa County - Unincorporated, Commercial)$0.00Maricopa CountyMaricopa County does not levy development impact fees.
Where in Maricopa County Are You Building?
Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 50,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). * = one-time water/sewer connection charges only; no per-sq-ft impact fee schedule sourced for that jurisdiction. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.
Unincorporated Maricopa County: Industrial Impact Fees
Unincorporated Maricopa County does not currently levy impact fees on industrial development (rates sourced July 23, 2026). The schedule below documents the adopted zero or exempt status for each fee.
View the Full Maricopa County Impact Fee Schedule
- Water Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no water utility. In the unincorporated area, water service and any connection fee are provided by a private or municipal utility or a water district serving the specific location.
- Sewer Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no sewer utility. In the unincorporated area, wastewater is handled by private septic systems or by a private or municipal provider serving the specific location.
- City Development Impact Fee (Maricopa County - Unincorporated, Industrial)$0.00Maricopa CountyNo municipal development impact fees apply in the unincorporated county area.
- County Development Impact Fee (Maricopa County - Unincorporated, Industrial)$0.00Maricopa CountyMaricopa County does not levy development impact fees.
Where in Maricopa County Are You Building?
Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 25,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). * = one-time water/sewer connection charges only; no per-sq-ft impact fee schedule sourced for that jurisdiction. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.
Unincorporated Maricopa County: Office Impact Fees
Unincorporated Maricopa County does not currently levy impact fees on office development (rates sourced July 23, 2026). The schedule below documents the adopted zero or exempt status for each fee.
View the Full Maricopa County Impact Fee Schedule
- Water Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no water utility. In the unincorporated area, water service and any connection fee are provided by a private or municipal utility or a water district serving the specific location.
- Sewer Impact Fee (Maricopa County - Unincorporated) — nonres$0.00Maricopa CountyMaricopa County operates no sewer utility. In the unincorporated area, wastewater is handled by private septic systems or by a private or municipal provider serving the specific location.
- City Development Impact Fee (Maricopa County - Unincorporated, Office)$0.00Maricopa CountyNo municipal development impact fees apply in the unincorporated county area.
- County Development Impact Fee (Maricopa County - Unincorporated, Office)$0.00Maricopa CountyMaricopa County does not levy development impact fees.
Maricopa County Impact Fee Calculator
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How Development Impact Fees Work in Arizona
Arizona cities and towns assess development impact fees (the statute calls them development fees) under A.R.S. 9-463.05 and counties under A.R.S. 11-1102. A fee can only be adopted after the governing body adopts land use assumptions and an infrastructure improvements plan for the service area, with public notice and hearings, and the plan projects demand for no more than ten years.
Fees are limited to necessary public services the statute lists: water, wastewater, stormwater and drainage, streets, fire and police facilities, neighborhood parks of up to 30 acres and, for cities, small libraries. Each fee must be proportionate to the new development's share of the cost, kept in a separate account for that service category and service area, and never used for operations, maintenance or a higher level of service for existing development.
Developers earn credits for facilities they build or dedicate, and a fee that goes unspent for ten years (fifteen for water or wastewater) is refundable with interest on request. For a residential unit the fee is due when the building permit issues unless a development agreement defers it, and a new or increased fee cannot be applied to an approved plat or site plan for 24 months.
Counties and cities each adopt their own schedules. County development fees apply in the county's service areas; inside city limits, development pays the city's fees plus any utility connection charges, which is why totals differ between a city and the unincorporated county around it.
Brush up on impact fee basics before you budget your next project.
Summary current as of October 2026. This is an editorial summary, not legal advice; see the official statute text and our terms of use.
Maricopa County Impact Fee FAQs
How much are commercial impact fees in Maricopa County?
Unincorporated Maricopa County does not currently levy impact fees on commercial development.
Do cities in Maricopa County charge their own impact fees?
Yes. Every incorporated city applies its own fee schedule. 23 of 24 cities in Maricopa County levy municipal impact or utility fees; each city page shows the full schedule that applies inside its limits.
Can Arizona development impact fees increase at any time?
No. Under A.R.S. 9-463.05 and 11-1102 a new or increased fee cannot be adopted on an emergency basis, takes effect only after public notice and hearings (75 days after adoption for a city, 90 for a county), and cannot be applied to a development with an approved final plat or site plan for 24 months unless the plan changes to add service units.
Fee amounts on this page are compiled from official published schedules and are provided for planning purposes only. Rates change, and project specifics (unit size, meter size, location within special districts) can alter what applies. Always verify current fees with the jurisdiction and utility before relying on them.