How Miami Gardens Handles Accessory Structures: A Practical Guide

Miami Gardens maintains 108 local ordinances across all categories, and 5 of those deal specifically with accessory structures. Here is a breakdown of what the city actually requires, what is prohibited, and where Miami Gardens falls on the strict-to-permissive spectrum compared to other cities.

Tiny Homes

Florida SB 184 (effective July 2025) requires all municipalities to permit ADUs including tiny homes on permanent foundations in single-family residential zones. Tiny homes on wheels are classified as recreational vehicles and cannot be used as permanent residences. All tiny homes must comply with the Florida Building Code and Miami-Dade HVHZ requirements.

Key details: On Foundation: Permitted as ADU (SB 184). On Wheels: Classified as RV — no permanent occupancy. Building Code: Full Florida Building Code + HVHZ. Min Lot Size: 7,500 sq ft for new ADU. Permit: Required for all installations.

Installing a tiny home without permits is a code violation. Using a tiny home on wheels as a permanent residence violates zoning regulations. Stop-work orders and fines apply.

ADU Rules

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.

Key details: State Mandate: 1 ADU per SF lot (SB 184, eff. 7/1/2025). New Build Lot Size: 7,500 sq ft minimum. Garage Conversion: 5,000 sq ft minimum. Separate Sale: Prohibited — attached to principal. Extra Parking: Cannot be required (state law).

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.

Garage Conversions

Garage conversions in Miami Gardens require building permits and must comply with the Florida Building Code. Under state ADU legislation (SB 184, effective July 2025), garage conversions for ADUs are permitted on lots of at least 5,000 square feet. Converted spaces must meet habitation standards including egress, ventilation, and structural requirements.

Key details: Permit Required: Yes — building permit. ADU Lot Size: 5,000 sq ft minimum. Habitation Standards: Egress, ventilation, electrical, plumbing. Parking Replacement: Not required for ADU (state law). HVHZ Standards: Apply to all structural work.

Converting a garage without a permit is a code violation. Unpermitted conversions may be required to be restored to original condition. Fines and stop-work orders apply.

Carport Rules

Carports in Miami Gardens are classified as accessory structures under Article X of the Zoning Code (Chapter 34). Building permits are required for carport construction. Carports must meet setback requirements and may not occupy more than 30% of the rear yard area. Miami-Dade HVHZ structural standards apply.

Key details: Permit Required: Yes — building permit. Rear Yard Coverage: Counts toward 30% maximum. Setbacks: Per underlying zoning district. HVHZ Standards: Required for all structures. Governing Code: §34-312 Art. X.

Building a carport without a permit is a code violation. Carports that violate setbacks or exceed lot coverage limits may be required to be removed.

Shed Rules

Sheds and storage buildings in Miami Gardens must comply with Article X (Accessory Uses and Structures) of the Zoning Code (Chapter 34). Accessory buildings may not occupy more than 30% of the rear yard area. Setback requirements apply, and utility sheds must not exceed the maximum permitted height in the underlying zoning district.

Key details: Max Rear Yard Coverage: 30%. Front Setback: 75 feet minimum (with exceptions). Height Limit: Per underlying zoning district. Permit: Required above size threshold. Governing Code: §34-312 Art. X.

Building a shed without required permits or in violation of setbacks is a code violation. Non-compliant structures may be required to be removed or relocated.

The Bottom Line

Miami Gardens's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Miami Gardens is broadly strict or permissive.

This guide is based on Miami Gardens's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.