Hialeah, FL Accessory Structures: ADU Impact Fees (2026)

Florida authorizes local impact fees on new development under FL Statute §163.31801, the Florida Impact Fee Act. Miami-Dade County administers an impact fee schedule under Miami-Dade Code Chapter 33E that applies to new construction within municipalities including Hialeah. Fee categories typically include: Road Impact Fee, Educational Facilities Impact Fee (Miami-Dade Public Schools), Park Impact Fee, Police Impact Fee, and Fire/Rescue Impact Fee. Rates vary by Benefit District and dwelling type; ADUs are usually charged at a reduced 'small accessory unit' or scaled-square-footage rate, but applicants should request a written estimate from the Miami-Dade Impact Fee Office. The City of Hialeah charges its own building permit and plan-review fees through the Hialeah Building Department under the city's fee schedule. FL §163.31801(6) caps annual impact fee increases — increases above certain thresholds require a demonstrated-need study, and increases beyond 50% over a four-year period are restricted absent extraordinary circumstances. Hialeah practice: applicants must present a paid Miami-Dade Impact Fee Tax Receipt before the city will issue the final building permit. Failure to obtain the receipt blocks permit issuance and certificate of occupancy.