ADU rules in Miami Gardens, FL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Florida Senate Bill 184 (effective July 1, 2025) mandates all local governments permit at least one ADU per single-family residential lot. Miami Gardens follows Miami-Dade County ADU standards which require a minimum lot size of 7,500 sq ft for new construction or 5,000 sq ft for garage conversions. ADUs must comply with accessory structure setbacks.
Under Florida SB 184, effective July 1, 2025, all Florida municipalities must permit at least one ADU per single-family residential lot. Miami Gardens follows Miami-Dade County ADU regulations under the zoning code. New ADU construction requires a minimum lot size of 7,500 square feet, while garage conversions require 5,000 square feet. ADUs must comply with the accessory structure setback requirements of the underlying zoning district. Building permits are required, and plans must comply with the Florida Building Code including Miami-Dade's High-Velocity Hurricane Zone provisions. ADUs may not be sold separately from the principal residence. Additional parking requirements beyond state standards are prohibited under the new state law. Homestead property tax exemptions are protected when an ADU is added.
Building an ADU without permits is a serious code violation. Non-compliant structures may be required to be removed. Stop-work orders and fines apply.
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Side-by-side rule comparisons with other cities in Miami-Dade County.
See how other cities in Miami-Dade County handle adu rules.
See how Miami Gardens's adu rules rules stack up against other locations.
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