Mesa charges development impact fees under Arizona Revised Statutes Section 9-463.05 for water, wastewater, parks, and public safety. HB 2720 requires that ADU impact fees be proportional to the ADU's service demand, not the full single-family rate. Mesa Utilities capacity fees apply when a new water meter is installed for an ADU.
Mesa development impact fees are authorized under ARS 9-463.05 and adopted by Mesa City Council resolution. Fees are collected for water, wastewater, parks, fire, police, and major streets and must be proportional to actual service demand. HB 2720 requires cities over 75,000 to charge ADU impact fees proportional to the demand attributable to the ADU, not the same as a full single-family unit. Mesa Utilities (city-owned water and wastewater provider) charges separate capacity fees when a new water meter is installed for an ADU. ADUs that share the primary dwelling's water meter avoid these capacity charges. Mesa permit fees scale with construction valuation, typically $500-$2,000 for a residential ADU. Plan review fees are separate. Property owners should request a complete fee estimate from Mesa Development Services before submitting permits.
Impact fees must be paid before building permit issuance. Bypassing permitting to avoid fees triggers double permit fees and civil penalties under MZO enforcement. Unpaid fees may become liens on the property. Construction without valid permits prevents certificate of occupancy.
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