Phoenix, AZ Development Impact Fees (2026)

FEES THAT EXIST (verified, official, effective 2025-06-23 unless noted): Phoenix levies Development Impact Fees (System Development Fees under ARS 9-463.05) in categories Fire, Police, Parks & Recreation, Libraries, Major Arterials (roads/transportation), Storm Drainage, Wastewater Collection, Wastewater Treatment, Water Transmission, Water Treatment, and a separate Water Resources Acquisition Fee. Plus a citywide Water + Sewer Development Occupational Fee (DOF, capacity/connection fee). KEY STRUCTURAL CAVEAT (critical for $ accuracy): Phoenix impact fees are NOT uniform citywide. They apply ONLY in designated growth/service areas (Northwest, Deer Valley, Northeast, Paradise Ridge, Estrella North/South, Laveen East/West, Ahwatukee), each subdivided into 'On-Project' and 'Off-Project' columns, with fees engineered per-area to fund only that area's infrastructure. The established 'Balance of City' core charges $0 for ALL impact fees and the Water Resources Acquisition Fee. NO single service area has every category non-zero. NORTHWEST (Off-Project) was selected as the representative primary because it carries the most complete fee set for a typical new single-family detached subdivision. Storm Drainage is $0 in Northwest, so its row is marked excludeFromTotal with a representative value from the Estrella area. Builders MUST confirm the actual service area, since e.g. the $14,046 Water Transmission and $2,330 Major Arterials fees apply in the northern areas but not the southern ones, where water/wastewater can drop to ~$1,071-$1,703.

Normalization

Residential water/wastewater SDFs are priced by meter size; the 'Single Family Unit - up to 1.0"' tier was used as the base residential tier (the standard 3/4" residential meter falls within it). The five utility SDF components (Wastewater Collection, Wastewater Treatment, Water Transmission, Water Treatment, Water Resources Acquisition) are ADDITIVE to one another, and the DOF (water $600 + sewer $600) is a separate additive capacity fee that applies even where impact fees are $0. REPRESENTATIVE NORTHWEST (Off-Project) SFD TOTAL: Fire $1,282 + Police $348 + Parks $1,409 + Library $216 + Major Arterials $2,330 + Wastewater Collection $5,127 + Wastewater Treatment $3,753 + Water Transmission $14,046 + Water Treatment $4,387 + Water Resources Acquisition $2,009 + Water DOF $600 + Sewer DOF $600 = $36,107 per single-family home (excludes Storm Drainage, $0 in Northwest). Arithmetic re-checked and correct. This is among the higher-cost areas; southern/central areas are substantially lower.

Categories that do not exist here

NO school impact fees — not authorized under Arizona law (ARS 9-463.05); AZ school districts cannot levy impact fees. NO standalone open-space, affordable-housing, or general/capital-facilities impact fee. NO separate highway/road district fee beyond the city Major Arterials fee. SFD fees are flat per dwelling unit (not tiered by home square footage) for the non-utility categories. ADUs: no separately published ADU row in the 2025 schedule. SDFs do not auto-escalate; next statutory review is on the ~5-year cycle from the 2025 update.

Verify

confirmed 19 of 19 rows; dropped 0. All three source URLs re-fetched live and confirmed (PDF via curl, both webpages via curl after WebFetch returned HTTP 403). Source 0 (2025 DIF Update PDF): all 17 rows matched the exact column values in the fee schedule — Fire SFD $1,282 / MF $872, Police SFD $348 / MF $237, Parks SFD $1,409 / MF $958, Libraries SFD $216 / MF $147, Major Arterials SFD $2,330 / MF $1,561, Storm Drainage SFD $1,207 (Estrella), Wastewater Collection $5,127, Wastewater Treatment $3,753, Water Transmission $14,046, Water Treatment $4,387, Water Resource Acquisition $2,009 — all verbatim from the Northwest (Off-Project) column (or cited representative column for Storm Drainage). 1.5" alternate-tier values ($11,177 / $8,182 / $30,620 / $9,564 / $4,380) and cross-service-area variations cited in the notes were also independently confirmed in the PDF columns. Source 2 (Development Occupational Fees page): the quote 'Single-Family residential project: Water DOF $600 + Sewer DOF $600 = Total DOF $1200' appears verbatim; inside-city SF $600.00 / outside $900.00 / mobile home space $420 / apartment-or-dwelling-unit $360 all confirmed; adopted Nov 1, 1984 (Ord. G-2664/G-2665/G-2666/G-2667) confirmed. Source 1 (impact-fees webpage): confirmed valid municipal page with notice 'Permits purchased after June 23, 2025 may be subject to revised Development Impact Fees and Water Resources Acquisition Fees', corroborating the 2025-06-23 effective date and the service-area-dependent structure. excludeFromTotal corrections: NONE NEEDED — Storm Drainage SFD remains excludeFromTotal=true (correct: it is a mutually-exclusive service-area swap since Storm Drainage = $0 in the Northwest primary area), and the five utility SDF rows correctly use the single 'up to 1.0"' base tier rather than double-counting the mutually-exclusive 1.5" tier. No double-counting found; representative SFD total of $36,107 is arithmetically sound. No confidence downgrades — every surviving row is a verbatim match against an official primary source.