Kuna, ID Development Impact Fees (2026)
A new single-family home in Kuna, Idaho pays about $19,153 in total development impact and water/sewer connection fees per unit as of Jun 17, 2026 — about $10,595 in impact/development fees plus $8,558 in water & sewer connection (tap/SDC) fees. Every figure below is normalized per dwelling unit by category, with a link to its official source.
What a single-family home pays in Kuna
$19,153 total per unit across 7 fee categories.
- Sewer connection (tap / SDC)$6,300
- Transportation / roads$5,803
- Parks & recreation$2,604
- Water connection (tap / SDC)$2,258
- Fire / EMS$1,792
- Police$271
- Mitigation$125
Kuna’s $19,153 is close to the Idaho tracked median of $19,153.
Full fee schedule — single-family detached
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads ACHD Transportation/Road Impact Fee — Single Family — Levied by the SEPARATE Ada County Highway District (ACHD), not the City of Kuna, but collected at the city building-permit. ACHD Ordinance 254, single service area covering all of Ada County (no service-area variants). VERIFIED verbatim in official ACHD Exhibit A PDF ($5,803 for ITE code 210, Per Dwelling Unit) and corroborated by KTVB/Mountain States reports of adoption. Exhibit A is headed 'Draft ... Effective TBD' but its figures match the adopted-ordinance news reports, so amount = adopted amount. | per dwelling unit | $5,803 | Ada County Highway District Mar 1, 2026High |
Parks & recreation City of Kuna Park Impact Fee — Residential — Kuna City Code 12-1-4, Ordinance No. 2024-33. Flat per dwelling unit (not tiered by home size). Applies to all residential dwelling units including multifamily. VERIFIED in codified Municode Title 12 ($2,604.00). | per dwelling unit | $2,604 | City of Kuna, ID (Municode) Oct 1, 2024High |
Police City of Kuna Police Department Impact Fee — Residential — Kuna City Code 12-3-3, Ordinance No. 2024-32. Non-residential = $0.11/sq ft. Flat per dwelling unit; applies to multifamily units too. VERIFIED in codified Municode Title 12 ($271.00). | per dwelling unit | $271 | City of Kuna, ID (Municode) Oct 1, 2024High |
Fire / EMS Fire District Impact Fee (Kuna Rural Fire District, collected by City) — Residential — Kuna City Code 12-2-3, Ordinance No. 2024-31 — a Kuna Rural Fire District impact fee collected by the City of Kuna on the district's behalf. VERIFIED $1,792 residential rate on Kuna Rural Fire District website (source 0) AND in codified Municode Title 12 (source 1). Flat per dwelling unit. | per dwelling unit | $1,792 | Kuna Rural Fire District Oct 1, 2024High |
Mitigation Well Mitigation Fee (water) — Resolution R18-2013. Additive water-connection mitigation charge per EDU. VERIFIED verbatim in R18-2013 PDF. | per dwelling unit | $125 | City of Kuna, ID Aug 1, 2013Mediumdated 2013 |
Water & sewer connection fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Sewer connection (tap / SDC) Sewer Treatment Capacity Fee — Resolution R66-2020 (most recent adopted sewer fee resolution; supersedes R02-2020, effective 12/1/2020). Per EDU (equivalent dwelling unit); one SF home = 1 EDU. Due at time of connection. VERIFIED verbatim in R66-2020 PDF. Medium confidence given the operative resolution is from 2020. | per dwelling unit | $4,971 | City of Kuna, ID Dec 1, 2020Mediumdated 2020 |
Sewer connection (tap / SDC) Sewer Interceptor/Conveyance Capacity Fee — Resolution R66-2020. Additive to the treatment capacity fee (both apply). Per EDU, due at connection. VERIFIED verbatim in R66-2020 PDF. | per dwelling unit | $1,329 | City of Kuna, ID Dec 1, 2020Mediumdated 2020 |
Water connection (tap / SDC) Water Main Capacity Fee — Resolution R18-2013, the most recent published water connection fee resolution. Confirmed via the consolidated Water and Sewer System Fees Rate Structure (R01-2020/R62-2021, eff. 1/1/2022) that later resolutions changed only monthly user rates, not connection fees. Per EDU. VERIFIED verbatim in R18-2013 PDF. Medium confidence due to 2013 age — verify with Kuna Utility Billing. | per dwelling unit | $1,173 | City of Kuna, ID Aug 1, 2013Mediumdated 2013 |
Water connection (tap / SDC) Water Supply Fee — Resolution R18-2013. Additive to the water main capacity fee. Per EDU. VERIFIED verbatim in R18-2013 PDF. | per dwelling unit | $1,085 | City of Kuna, ID Aug 1, 2013Mediumdated 2013 |
Water connection (tap / SDC) Water Meter & Service Setter Fee — 3/4" (residential) — Resolution R18-2013. Standard residential 3/4" meter setter+service charge (representative meter size). Excluded from the additive impact-fee total to avoid double counting variants; larger meter sizes (1" $1,037, 1.5" $1,479, 2" $1,847) are mutually-exclusive alternatives. A separate 'Meter Only' 3/4" charge of $320 also exists. VERIFIED verbatim in R18-2013 PDF. alternative · not added to total | per meter | $700 | City of Kuna, ID Aug 1, 2013Mediumdated 2013 |
Single-family attached (townhome) impact fees in Kuna
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads ACHD Transportation/Road Impact Fee — Single Family Attached — ACHD Ord. 254. Alternative residential land use; excluded from the detached-SF total. Levied by ACHD, collected at city permit. VERIFIED verbatim in official ACHD Exhibit A PDF ($3,182 for ITE code 215). alternative · not added to total | per dwelling unit | $3,182 | Ada County Highway District Mar 1, 2026High |
Multifamily (per unit) impact fees in Kuna
About $2,371 per unit.
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads ACHD Transportation/Road Impact Fee — Multifamily — ACHD multifamily (ITE codes 220 & 221). The official Exhibit A directs multifamily to 'Contact ACHD Impact Fee Team for Assessment' (no dollar figure), so this $2,371 comes from the KTVB/Mountain States news report of adopted Ordinance 254 — medium confidence. Separate highway-district fee collected at city permit. VERIFIED via secondary news source. | per dwelling unit | $2,371 | KTVB Mar 1, 2026Medium |
Accessory dwelling unit (ADU) impact fees in Kuna
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads ACHD Transportation/Road Impact Fee — Accessory Dwelling Unit — ACHD Ord. 254 ADU rate (ACHD land-use code 'ACHD 4'). Excluded from primary SF total; shown for reference. Levied by ACHD. VERIFIED verbatim in official ACHD Exhibit A PDF ($1,934). alternative · not added to total | per dwelling unit | $1,934 | Ada County Highway District Mar 1, 2026High |
Mobile / manufactured home impact fees in Kuna
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Transportation / roads ACHD Transportation/Road Impact Fee — Mobile Home — ACHD Ord. 254 mobile-home rate (ITE code 240). Excluded from primary SF total. VERIFIED verbatim in official ACHD Exhibit A PDF ($2,153). alternative · not added to total | per dwelling unit | $2,153 | Ada County Highway District Mar 1, 2026High |
Commercial (per 1,000 sq ft) impact fees in Kuna
Fees for commercial (per 1,000 sq ft) development, typically charged per 1,000 sq ft of building area.
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Police City of Kuna Police Department Impact Fee — Non-Residential — Per square foot of nonresidential space; excluded from residential SF total. Kuna City Code 12-3-3 (Ord. 2024-32). VERIFIED in codified Municode Title 12 ($0.11). alternative · not added to total | per sq ft | $0.11 | City of Kuna, ID (Municode) Oct 1, 2024High |
Office (per 1,000 sq ft) impact fees in Kuna
Fees for office (per 1,000 sq ft) development, typically charged per 1,000 sq ft of building area.
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Fire / EMS Fire District Impact Fee — Non-Residential Office — Kuna City Code 12-2-3 (Ord. 2024-31). Office and Institutional both $753/1,000 sf. Excluded from residential total. VERIFIED on Kuna Rural Fire District site and codified Municode Title 12. alternative · not added to total | per 1,000 sq ft | $753 | Kuna Rural Fire District Oct 1, 2024High |
Retail (per 1,000 sq ft) impact fees in Kuna
Fees for retail (per 1,000 sq ft) development, typically charged per 1,000 sq ft of building area.
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Fire / EMS Fire District Impact Fee — Non-Residential Retail — Kuna City Code 12-2-3 (Ord. 2024-31). Excluded from residential total. VERIFIED on Kuna Rural Fire District site (Retail $788/1,000 sf) and codified Municode Title 12. alternative · not added to total | per 1,000 sq ft | $788 | Kuna Rural Fire District Oct 1, 2024High |
Industrial (per 1,000 sq ft) impact fees in Kuna
Fees for industrial (per 1,000 sq ft) development, typically charged per 1,000 sq ft of building area.
Impact / development fees
| Fee (local term) | Basis | Amount | Source · effective |
|---|---|---|---|
Fire / EMS Fire District Impact Fee — Non-Residential Industrial — Kuna City Code 12-2-3 (Ord. 2024-31). Excluded from residential total. VERIFIED on Kuna Rural Fire District site ($531/1,000 sf) and codified Municode Title 12. alternative · not added to total | per 1,000 sq ft | $531 | Kuna Rural Fire District Oct 1, 2024High |
Coverage & caveats
Kuna, ID (Ada County). A residential builder in Kuna pays four distinct impact fees plus water and sewer connection/capacity fees.
What exists
(1) Transportation/road impact fee levied by the SEPARATE Ada County Highway District (ACHD), not the city — ACHD has a SINGLE service area for all of Ada County (no service-area variants), and under newly-adopted Ordinance 254 (effective 3/1/2026) the single-family fee is $5,803/unit; this is collected at building permit and is the largest single fee. (2) City Park Impact Fee $2,604/dwelling unit (Ord. 2024-33, codified Kuna City Code 12-1-4). (3) City Police Department Impact Fee $271/dwelling unit (Ord. 2024-32, codified 12-3-3). (4) Fire District Impact Fee $1,792/dwelling — a Kuna Rural Fire District fee collected by the City of Kuna on the district's behalf (Ord. 2024-31, codified 12-2-3; matches the Kuna Rural Fire District published rate). (5) Sewer connection: Interceptor (Conveyance) Capacity Fee $1,329/EDU + Treatment Capacity Fee $4,971/EDU, both due at connection (Resolution R66-2020, the most recent adopted sewer fee resolution, which supersedes R02-2020). (6) Water connection: Water Main Capacity Fee $1,173 + Water Supply Fee $1,085 + Well Mitigation Fee $125 per equivalent dwelling unit, plus a 3/4" meter+service setter charge $700 (Resolution R18-2013 — the most recent published water connection fee resolution; later resolutions R01-2020/R62-2021 changed only monthly user RATES, not connection fees, confirmed via the consolidated Water and Sewer System Fees Rate Structure doc effective 1/1/2022, so the 2013 connection figures appear to remain in force but are marked medium confidence due to age).
What does not exist
NO school impact fee — Idaho Code 67-8203 does not authorize school districts to levy impact fees (pending SB1060 would ADD them, confirming they are not currently authorized). No separate municipal drainage/stormwater impact fee, no library impact fee, no open-space impact fee, no affordable-housing/inclusionary fee, and no general/capital impact fee were found in Kuna's adopted schedules.
Caveats
The water-connection figures derive from a 2013 resolution and may have been administratively adjusted; verify with Kuna Utility Billing (208-922-5546) before relying on exact water numbers. Building permit, plan review, and plumbing/electrical/mechanical permit fees (Res. R74-2023A / R09-2025) are ordinary permit fees, not impact/capacity fees, and are excluded. ACHD figures for single-family attached, mobile home, and ADU come from the official Ord. 254 Exhibit A; the multifamily (codes 220/221) figure of $2,371/unit is from the adopted-ordinance news report (Exhibit A itself directs multifamily to 'Contact ACHD Impact Fee Team for Assessment') and is marked medium confidence. NOTE on ACHD Exhibit A: the canonical PDF retrieved is headed 'Draft Traffic Impact Fee Schedule ... Effective TBD,' but its SF ($5,803), MF ($2,371), office ($7,363) and shopping-center ($12,082) figures exactly match the KTVB/KIVI/Mountain States reports of the ADOPTED Ordinance 254, so the draft amounts equal the adopted amounts.
Verify
confirmed 21 of 21 rows; dropped 0. All amounts re-confirmed against primary sources — ACHD residential variants ($5,803/$3,182/$2,153/$1,934) verbatim in official ACHD Exhibit A PDF (retrieved via presigned S3 link after adacounty.id.gov/achdidaho.org were Cloudflare/403-blocked); Park $2,604, Police $271 + $0.11/sf, Fire $1,792/$788/$753/$531 verbatim in codified Municode Title 12 AND Kuna Rural Fire District site; Sewer $4,971 + $1,329 verbatim in R66-2020 PDF; Water $1,173/$1,085/$125/$700 verbatim in R18-2013 PDF. ACHD MF $2,371 confirmed only via secondary news report (Exhibit A defers to ACHD staff), kept medium. excludeFromTotal corrections: none needed — ACHD non-SF residential variants (SF-attached, ADU, mobile home), Police non-residential, Fire non-residential (retail/office/industrial), and 3/4" meter setter all correctly flagged excludeFromTotal=true; representative detached-SF total = $19,153 (5,803+2,604+271+1,792+4,971+1,329+1,173+1,085+125) confirmed with no double-counting.
Representative single-family unit assumed at the standard per-dwelling-unit / one-EDU basis (Kuna residential impact and connection fees are flat per dwelling unit / per EDU, NOT tiered by home square footage). ACHD transportation fee is the dominant fee and is collected at the city building-permit counter though it belongs to the highway district. Total estimated impact + connection fees for one detached single-family home (one EDU): ACHD $5,803 + Park $2,604 + Police $271 + Fire $1,792 + Sewer ($1,329 + $4,971 = $6,300) + Water ($1,173 + $1,085 + $125 = $2,383) = $19,153, plus a $700 water meter/setter charge. Water meter-only and larger meter-size rows and ACHD non-SF residential land uses are included as additional rows with excludeFromTotal=true. All figures independently re-verified 2026-06-17 against primary sources.
Sources
9 official sources · 11 high-confidence figures.
- 1Kuna Rural Fire District — Impact FeesKuna Rural Fire District · fee schedule · effective Oct 1, 2024 · retrieved Jun 17, 2026
- 2Kuna City Code Title 12 — Development Fees (codified Park 12-1-4, Fire 12-2-3, Police 12-3-3; Ords. 2024-31/32/33)City of Kuna, ID (Municode) · ordinance · effective Oct 1, 2024 · retrieved Jun 17, 2026
- 3Ordinance No. 2024-33 — Kuna Park Development Impact Fees (amending KCC 12-1-4)City of Kuna, ID (Municode) · ordinance · effective Oct 1, 2024 · retrieved Jun 17, 2026
- 4Ordinance No. 2024-32 — Kuna Police Department Development Impact Fees (amending KCC 12-3-3)City of Kuna, ID (Municode) · ordinance · effective Oct 1, 2024 · retrieved Jun 17, 2026
- 5Resolution No. R66-2020 — Sewer System Fees and Policies (Treatment $4,971/EDU, Interceptor $1,329/EDU)City of Kuna, ID · resolution · effective Dec 1, 2020 · retrieved Jun 17, 2026
- 6Resolution No. R18-2013 — Water System Fees and Policies (Main $1,173, Supply $1,085, Well Mitigation $125, 3/4" setter $700)City of Kuna, ID · resolution · effective Aug 1, 2013 · retrieved Jun 17, 2026
- 7ACHD Exhibit A — Traffic Impact Fee Schedule FY2026 (Ordinance 254, Single Service Area; SF $5,803, SF-attached $3,182, mobile home $2,153, ADU $1,934, MF=Contact ACHD)Ada County Highway District · fee schedule · effective Mar 1, 2026 · retrieved Jun 17, 2026
- 8ACHD approves Capital Improvement Plan, updates impact fees (Ordinance 254: SF $5,803, MF $2,371, eff. 3/1/2026)KTVB · news article · effective Mar 1, 2026 · retrieved Jun 17, 2026
- 9City of Kuna Water and Sewer System Fees Rate Structure (R01-2020 & R62-2021) — monthly user rates only, no connection-fee changesCity of Kuna, ID · fee schedule · effective Jan 1, 2022 · retrieved Jun 17, 2026
Kuna impact fees — FAQ
- How much are development impact fees in Kuna, ID for a single-family home?
- As of 2026-06-17, total development fees for a single-family detached home in Kuna are about $19,153 per unit — roughly $10,595 in impact/development fees plus $8,558 in water/sewer connection fees. Figures are normalized from official sources; verify with the jurisdiction before relying on them.
- What are the impact fees per multifamily unit in Kuna, ID?
- Total development fees for a multifamily unit in Kuna are about $2,371 per unit as of 2026-06-17.
- Are impact fees in Kuna the same as building permit fees?
- No. Impact fees (and water/sewer connection fees) fund off-site capital — roads, parks, schools, utilities — and are charged per new dwelling unit. Building permit and plan-review fees are separate and are not included here.
- How often do Kuna's impact fees change?
- Most jurisdictions adopt fees by ordinance and escalate them annually (often by a construction cost index), with occasional mid-year updates. Always confirm the current adopted schedule with the jurisdiction. ImpactFeeAtlas last verified Kuna on 2026-06-17.
Compare impact fees in nearby Idaho jurisdictions
Cities with a similar fee burden
Jurisdictions in other states with total single-family fees close to Kuna’s $19,153 per home.