Mammoth Impact Fees by Project Type
Mammoth: Single-Family Impact Fees
A new single-family home in Mammoth pays at least $200.00 per unit in impact fees (rates sourced October 15, 2026). Every line item is levied at the municipal or utility level.
Water Connection Fee (Town of Mammoth) is shown at the last published amount but has not been confirmed with the jurisdiction; it is included in the totals here. Verify before budgeting.
Sewer Connection Fee (Town of Mammoth) is set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; it is not included as a dollar figure here.
View the Full Mammoth Impact Fee Schedule
- Water Connection Fee (Town of Mammoth)$200.00Requires confirmationTown of MammothThe Town of Mammoth runs its own public water system. Its fee schedule (water fees updated March 2, 2020) lists a $200 new connection fee; a new 5/8 inch residential meter is a separate $250 charge plus equipment, materials and labor.
- Sewer Connection Fee (Town of Mammoth)Requires confirmationTown of MammothThe Town of Mammoth runs its own wastewater treatment plant and sewer system. Its posted fee schedule lists monthly sewer rates only and no one-time sewer connection charge.
- Development Impact Fee (Town of Mammoth)$0.00Town of MammothThe Town of Mammoth levies no development impact fees. Its posted fee schedule, zoning code and adopted budgets show no development fee or development fee fund.
- County Development Impact Fee (Pinal County)$0.00Pinal CountyPinal County's development impact fee applies only in unincorporated areas, so it is not charged on homes permitted by the Town of Mammoth.
Where in Pinal 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.
Mammoth: Multifamily Impact Fees
A new multifamily unit in Mammoth pays at least $200.00 per unit in impact fees (rates sourced October 15, 2026). Every line item is levied at the municipal or utility level.
Water Connection Fee (Town of Mammoth, MF) is shown at the last published amount but has not been confirmed with the jurisdiction; it is included in the totals here. Verify before budgeting.
Sewer Connection Fee (Town of Mammoth, MF) is set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; it is not included as a dollar figure here.
View the Full Mammoth Impact Fee Schedule
- Water Connection Fee (Town of Mammoth, MF)$200.00Requires confirmationTown of MammothThe Town of Mammoth runs its own public water system. Its fee schedule (water fees updated March 2, 2020) lists a $200 new connection fee per connection, not per unit; new meters are a separate charge ($250 for 5/8 inch, $500 for 1 inch, $1,000 for 2 inch) plus equipment, materials and labor.
- Sewer Connection Fee (Town of Mammoth, MF)Requires confirmationTown of MammothThe Town of Mammoth runs its own wastewater treatment plant and sewer system. Its posted fee schedule lists monthly sewer rates only and no one-time sewer connection charge.
- Development Impact Fee (Town of Mammoth, MF)$0.00Town of MammothThe Town of Mammoth levies no development impact fees. Its posted fee schedule, zoning code and adopted budgets show no development fee or development fee fund.
- County Development Impact Fee (Pinal County, MF)$0.00Pinal CountyPinal County's development impact fee applies only in unincorporated areas, so it is not charged on multifamily projects permitted by the Town of Mammoth.
Where in Pinal 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.
Mammoth: Commercial Impact Fees
Commercial development in Mammoth pays no per-square-foot impact fees, but owes $200.00 in one-time water and sewer connection fees (rates sourced October 15, 2026).
For a 50,000 sq ft building, that comes to at least $200.00. The calculator below adjusts to your exact square footage.
Water Connection Fee (Town of Mammoth) is shown at the last published amount but has not been confirmed with the jurisdiction; it is included in the totals here. Verify before budgeting.
Sewer Connection Fee (Town of Mammoth) is set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; it is not included as a dollar figure here.
View the Full Mammoth Impact Fee Schedule
- Water Connection Fee (Town of Mammoth)$200.00 one-timeRequires confirmationTown of MammothWater in Mammoth is provided by the Town, which charges a $200 new connection fee. New meters are charged separately by size (5/8 inch commercial $250, 1 inch $500, 2 inch $1,000) plus equipment, materials and labor.
- Sewer Connection Fee (Town of Mammoth)Requires confirmationTown of MammothSewer in Mammoth is provided by the Town, which operates its own wastewater treatment facility. The Town's posted fee schedule lists monthly sewer rates and no sewer connection fee.
- Development Impact Fee (Town of Mammoth, Commercial)$0.00Town of MammothThe Town of Mammoth does not levy development impact fees on nonresidential construction.
- County Development Impact Fee (Pinal County, Commercial)$0.00Pinal CountyPinal County development impact fees do not apply within incorporated Mammoth.
Where in Pinal 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.
Mammoth: Industrial Impact Fees
Industrial development in Mammoth pays no per-square-foot impact fees, but owes $200.00 in one-time water and sewer connection fees (rates sourced October 15, 2026).
For a 50,000 sq ft building, that comes to at least $200.00. The calculator below adjusts to your exact square footage.
Water Connection Fee (Town of Mammoth) is shown at the last published amount but has not been confirmed with the jurisdiction; it is included in the totals here. Verify before budgeting.
Sewer Connection Fee (Town of Mammoth) is set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; it is not included as a dollar figure here.
View the Full Mammoth Impact Fee Schedule
- Water Connection Fee (Town of Mammoth)$200.00 one-timeRequires confirmationTown of MammothWater in Mammoth is provided by the Town, which charges a $200 new connection fee. New meters are charged separately by size (5/8 inch commercial $250, 1 inch $500, 2 inch $1,000) plus equipment, materials and labor.
- Sewer Connection Fee (Town of Mammoth)Requires confirmationTown of MammothSewer in Mammoth is provided by the Town, which operates its own wastewater treatment facility. The Town's posted fee schedule lists monthly sewer rates and no sewer connection fee.
- Development Impact Fee (Town of Mammoth, Industrial)$0.00Town of MammothThe Town of Mammoth does not levy development impact fees on nonresidential construction.
- County Development Impact Fee (Pinal County, Industrial)$0.00Pinal CountyPinal County development impact fees do not apply within incorporated Mammoth.
Where in Pinal 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.
Mammoth: Office Impact Fees
Office development in Mammoth pays no per-square-foot impact fees, but owes $200.00 in one-time water and sewer connection fees (rates sourced October 15, 2026).
For a 25,000 sq ft building, that comes to at least $200.00. The calculator below adjusts to your exact square footage.
Water Connection Fee (Town of Mammoth) is shown at the last published amount but has not been confirmed with the jurisdiction; it is included in the totals here. Verify before budgeting.
Sewer Connection Fee (Town of Mammoth) is set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; it is not included as a dollar figure here.
View the Full Mammoth Impact Fee Schedule
- Water Connection Fee (Town of Mammoth)$200.00 one-timeRequires confirmationTown of MammothWater in Mammoth is provided by the Town, which charges a $200 new connection fee. New meters are charged separately by size (5/8 inch commercial $250, 1 inch $500, 2 inch $1,000) plus equipment, materials and labor.
- Sewer Connection Fee (Town of Mammoth)Requires confirmationTown of MammothSewer in Mammoth is provided by the Town, which operates its own wastewater treatment facility. The Town's posted fee schedule lists monthly sewer rates and no sewer connection fee.
- Development Impact Fee (Town of Mammoth, Office)$0.00Town of MammothThe Town of Mammoth does not levy development impact fees on nonresidential construction.
- County Development Impact Fee (Pinal County, Office)$0.00Pinal CountyPinal County development impact fees do not apply within incorporated Mammoth.
Where in Pinal 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.
Mammoth 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.
If you're still asking what are impact fees, start with our guide to the definition, common categories, and legal basis.
Summary current as of October 2026. This is an editorial summary, not legal advice; see the official statute text and our terms of use.
Mammoth Impact Fee FAQs
What are the total impact fees for a single-family home in Mammoth, Arizona?
A new single-family home in Mammoth pays at least $200.00 per unit in combined impact fees (rates sourced October 15, 2026). This figure includes amounts that have not been confirmed and excludes fees with no published standard amount, so the full cost may be higher; verify before budgeting.
How much are commercial impact fees in Mammoth?
Commercial development in Mammoth pays no per-square-foot impact fees, but owes $200.00 in one-time water and sewer connection fees. This figure includes amounts that have not been confirmed and excludes fees with no published standard amount, so the full cost may be higher; verify before budgeting.
Does Mammoth charge its own impact fees?
Yes. Mammoth levies its own municipal impact or utility fees. Pinal County does not currently add county-level impact fees inside Mammoth. The schedule on this page shows every fee that applies to development in Mammoth.
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.
Compare unincorporated rates and every other city on the Pinal County impact fees page.