La Paz County Impact Fees by Project Type
Where in La Paz 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 La Paz County: Single-Family Impact Fees
A new single-family home in unincorporated La Paz County pays at least $1,680.00 per unit in impact fees (rates sourced October 16, 2026). Every line item is levied at the municipal or utility level.
The largest line items are Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona ($1,680.00).
Sewer Connection Fee (La Paz County - Unincorporated) 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.
Some fees are tiered by unit size or building type; amounts reflect the representative tier noted in the schedule below.
View the Full La Paz County Impact Fee Schedule
- Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona$1,680.00EPCOR Sonoran District, 5/8" x 3/4"EPCOR Water Arizona Inc.La Paz County runs no water utility; the unincorporated area is served by private water companies, improvement districts, the Colorado River Indian Tribes system and private wells, each with its own charges. This rate is for the largest provider, EPCOR Water Arizona, whose six systems along the Parker Strip fall under its Sonoran Water District tariff. EPCOR charges a one-time Common Facilities hook-up fee on every new service connection by meter size, here a standard 5/8 x 3/4-inch residential meter, under the tariff effective February 1, 2022. EPCOR's separate service line and meter installation charge is a refundable advance and is not included.
- Sewer Connection Fee (La Paz County - Unincorporated)Requires confirmationBuckskin Sanitary District / septicLa Paz County runs no sewer utility. Most development in the unincorporated area uses on-site septic systems; the Buckskin Sanitary District sewers part of the Parker Strip and sets its own connection charges, which it does not publish.
- City Development Fee (La Paz County - Unincorporated)$0.00La Paz CountyThe unincorporated county has no municipal government, so no city or town development impact fees apply.
- County Development Fee (La Paz County)$0.00La Paz CountyLa Paz County does not levy development impact fees. The county charges building permit and plan review fees only, under its Community Development fee schedule adopted July 6, 2026.
Where in La Paz 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 La Paz County: Multifamily Impact Fees
A new multifamily unit in unincorporated La Paz County pays at least $1,680.00 per unit in impact fees (rates sourced October 16, 2026). Every line item is levied at the municipal or utility level.
The largest line items are Water Hook-Up Fee (La Paz County - Unincorporated, MF) — EPCOR Water Arizona ($1,680.00).
Sewer Connection Fee (La Paz County - Unincorporated, 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.
Some fees are tiered by unit size or building type; amounts reflect the representative tier noted in the schedule below.
View the Full La Paz County Impact Fee Schedule
- Water Hook-Up Fee (La Paz County - Unincorporated, MF) — EPCOR Water Arizona$1,680.00EPCOR Sonoran District, 5/8" x 3/4"EPCOR Water Arizona Inc.La Paz County runs no water utility; the unincorporated area is served by private water companies, improvement districts, the Colorado River Indian Tribes system and private wells, each with its own charges. This rate is for the largest provider, EPCOR Water Arizona, whose six systems along the Parker Strip fall under its Sonoran Water District tariff. EPCOR charges a one-time Common Facilities hook-up fee per service connection by meter size, with no separate multifamily rate; this is the smallest meter, one connection per unit, and a building served by one larger meter pays once at that meter's rate. The tariff has been effective since February 1, 2022. EPCOR's separate service line and meter installation charge is a refundable advance and is not included.
- Sewer Connection Fee (La Paz County - Unincorporated, MF)Requires confirmationBuckskin Sanitary District / septicLa Paz County runs no sewer utility. Most development in the unincorporated area uses on-site septic systems; the Buckskin Sanitary District sewers part of the Parker Strip and sets its own connection charges, which it does not publish.
- City Development Fee (La Paz County - Unincorporated, MF)$0.00La Paz CountyThe unincorporated county has no municipal government, so no city or town development impact fees apply.
- County Development Fee (La Paz County - Unincorporated, MF)$0.00La Paz CountyLa Paz County does not levy development impact fees. The county charges building permit and plan review fees only, under its Community Development fee schedule adopted July 6, 2026.
Where in La Paz 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 La Paz County: Commercial Impact Fees
Commercial development in unincorporated La Paz County pays no per-square-foot impact fees, but owes $4,200.00 in one-time water and sewer connection fees (rates sourced October 16, 2026).
For a 50,000 sq ft building, that comes to at least $4,200.00. The calculator below adjusts to your exact square footage.
The largest line items are Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona ($4,200.00 one-time).
Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.
Sewer Connection Fee (La Paz County - Unincorporated) 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 La Paz County Impact Fee Schedule
- Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona$4,200.00 one-timeEPCOR Sonoran District, 1"EPCOR Water Arizona Inc.La Paz County runs no water utility; the unincorporated area is served by private water companies, improvement districts, the Colorado River Indian Tribes system and private wells, each with its own charges. This rate is for the largest provider, EPCOR Water Arizona, whose six systems along the Parker Strip fall under its Sonoran Water District tariff. EPCOR charges a one-time Common Facilities hook-up fee on every new service connection by meter size, residential or commercial; the 1-inch meter (size factor 2.5) is shown and other sizes are listed. Tariff effective February 1, 2022. EPCOR's separate service line and meter installation charge is a refundable advance and is not included.
- Sewer Connection Fee (La Paz County - Unincorporated)Requires confirmationBuckskin Sanitary District / septic (no county sewer utility)La Paz County runs no sewer utility. Most development in the unincorporated area uses on-site septic systems; the Buckskin Sanitary District sewers part of the Parker Strip and sets its own connection charges, which it does not publish.
- City Development Impact Fee (La Paz County - Unincorporated, Commercial)$0.00None (unincorporated)Unincorporated La Paz County has no municipal government, so no city or town development fees apply.
- County Development Impact Fee (La Paz County, Commercial)$0.00La Paz CountyLa Paz County does not levy development impact fees on new nonresidential construction. The county's fee resolution, effective August 6, 2026, sets building permit and administrative charges only, which are not included here.
Where in La Paz 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 La Paz County: Industrial Impact Fees
Industrial development in unincorporated La Paz County pays no per-square-foot impact fees, but owes $4,200.00 in one-time water and sewer connection fees (rates sourced October 16, 2026).
For a 50,000 sq ft building, that comes to at least $4,200.00. The calculator below adjusts to your exact square footage.
The largest line items are Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona ($4,200.00 one-time).
Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.
Sewer Connection Fee (La Paz County - Unincorporated) 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 La Paz County Impact Fee Schedule
- Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona$4,200.00 one-timeEPCOR Sonoran District, 1"EPCOR Water Arizona Inc.La Paz County runs no water utility; the unincorporated area is served by private water companies, improvement districts, the Colorado River Indian Tribes system and private wells, each with its own charges. This rate is for the largest provider, EPCOR Water Arizona, whose six systems along the Parker Strip fall under its Sonoran Water District tariff. EPCOR charges a one-time Common Facilities hook-up fee on every new service connection by meter size, residential or commercial; the 1-inch meter (size factor 2.5) is shown and other sizes are listed. Tariff effective February 1, 2022. EPCOR's separate service line and meter installation charge is a refundable advance and is not included.
- Sewer Connection Fee (La Paz County - Unincorporated)Requires confirmationBuckskin Sanitary District / septic (no county sewer utility)La Paz County runs no sewer utility. Most development in the unincorporated area uses on-site septic systems; the Buckskin Sanitary District sewers part of the Parker Strip and sets its own connection charges, which it does not publish.
- City Development Impact Fee (La Paz County - Unincorporated, Industrial)$0.00None (unincorporated)Unincorporated La Paz County has no municipal government, so no city or town development fees apply.
- County Development Impact Fee (La Paz County, Industrial)$0.00La Paz CountyLa Paz County does not levy development impact fees on new nonresidential construction. The county's fee resolution, effective August 6, 2026, sets building permit and administrative charges only, which are not included here.
Where in La Paz 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 La Paz County: Office Impact Fees
Office development in unincorporated La Paz County pays no per-square-foot impact fees, but owes $4,200.00 in one-time water and sewer connection fees (rates sourced October 16, 2026).
For a 25,000 sq ft building, that comes to at least $4,200.00. The calculator below adjusts to your exact square footage.
The largest line items are Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona ($4,200.00 one-time).
Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.
Sewer Connection Fee (La Paz County - Unincorporated) 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 La Paz County Impact Fee Schedule
- Water Hook-Up Fee (La Paz County - Unincorporated) — EPCOR Water Arizona$4,200.00 one-timeEPCOR Sonoran District, 1"EPCOR Water Arizona Inc.La Paz County runs no water utility; the unincorporated area is served by private water companies, improvement districts, the Colorado River Indian Tribes system and private wells, each with its own charges. This rate is for the largest provider, EPCOR Water Arizona, whose six systems along the Parker Strip fall under its Sonoran Water District tariff. EPCOR charges a one-time Common Facilities hook-up fee on every new service connection by meter size, residential or commercial; the 1-inch meter (size factor 2.5) is shown and other sizes are listed. Tariff effective February 1, 2022. EPCOR's separate service line and meter installation charge is a refundable advance and is not included.
- Sewer Connection Fee (La Paz County - Unincorporated)Requires confirmationBuckskin Sanitary District / septic (no county sewer utility)La Paz County runs no sewer utility. Most development in the unincorporated area uses on-site septic systems; the Buckskin Sanitary District sewers part of the Parker Strip and sets its own connection charges, which it does not publish.
- City Development Impact Fee (La Paz County - Unincorporated, Office)$0.00None (unincorporated)Unincorporated La Paz County has no municipal government, so no city or town development fees apply.
- County Development Impact Fee (La Paz County, Office)$0.00La Paz CountyLa Paz County does not levy development impact fees on new nonresidential construction. The county's fee resolution, effective August 6, 2026, sets building permit and administrative charges only, which are not included here.
La Paz 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.
For a primer on how impact fees work, see our plain-English guide.
Summary current as of October 2026. This is an editorial summary, not legal advice; see the official statute text and our terms of use.
La Paz County Impact Fee FAQs
What are single-family impact fees in La Paz County, Arizona?
A new single-family home in unincorporated La Paz County pays at least $1,680.00 per unit in impact fees (rates sourced October 16, 2026). One additional fee has no published standard amount and is not included, so the full cost may be higher; verify before budgeting. Inside city limits, fees are set by each city's own schedule and may be completely different. See the city pages for their rates.
How much are multifamily impact fees in La Paz County?
Multifamily development in unincorporated La Paz County pays at least $1,680.00 per unit in impact fees (rates sourced October 16, 2026). One additional fee has no published standard amount and is not included, so the full cost may be higher; verify before budgeting. Rates inside city limits depend on the municipality. Pick your city on this page.
How much are commercial impact fees in La Paz County?
Commercial development in unincorporated La Paz County pays no per-square-foot impact fees, but owes $4,200.00 in one-time water and sewer connection fees (assuming a 1-inch meter). One additional fee has no published standard amount and is not included, so the full cost may be higher; verify before budgeting.
Do cities in La Paz County charge their own impact fees?
Yes. Every incorporated city applies its own fee schedule. 1 of 2 cities in La Paz 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.