Building permits in Miami-Dade County, Florida
Find the right authority before you build. Miami-Dade County permitting follows Florida law — here is exactly who issues the permit and where to start.
County + cities (mixed)
Miami-Dade County Department of Regulatory and Economic Resources — Building
Miami-Dade County’s Building department issues permits for unincorporated Miami-Dade and also processes municipal building permits for many municipalities that contract with the county (via the e-permitting / plan-tracking system). Some municipalities run their own building departments. Verify whether your property is in an unincorporated area or a contracting municipality.
Open the official permit portal →
Permit applications, plan tracking and inspections use the Miami-Dade Building permit portal (miamidade.gov/building/plantrack.asp). Contractors can use e-Permits for work not requiring plan review.
Permit cheat-sheet (Florida rules)
| Project | Permit? | Authority | Typical fee | Timeline | Go / No-Go | Key notes |
|---|---|---|---|---|---|---|
| 🏠 Accessory Dwelling Unit (ADU) | Permit required | city | Permit and plan-review fees set by the city. Verify with the local building department. | Varies by city; 2–8 weeks. | Restricted | Florida has no statewide by-right ADU mandate; ADUs are allowed only where the local ordinance permits, with size/setback set by that ordinance. Exempt: Allowed where local zoning permits (e.g., Miami 21, Orlando, Tampa). |
| 🪵 Deck / Porch | Conditional | city | Set by the city — typically a flat plus valuation-based fee. Verify with the city building department. | 1–4 weeks. | Generally allowed | Attached or raised decks need a building permit. Exempt: Decks >30 in above grade or attached require a permit (FBC R105). |
| 🧱 Fence / Wall | Conditional | city | Usually no building permit under the height threshold; zoning setback rules apply. Verify locally. | Same day / Over-the-Counter where required. | Generally allowed | Height/setback set by local zoning; HOA rules may also apply. Exempt: Typically no building permit under ~6 ft (zoning). |
| 🛖 Shed / Outbuilding | Conditional | city | No fee under the exemption; a permit fee applies if over the threshold. | Same day / Over-the-Counter where required. | Generally allowed | Larger or serviced sheds need a building permit. Exempt: One-story detached accessory structure ≤120 sq ft is exempt (FBC R105.2). |
| 🪜 Basement Finish | Permit required | city | Valuation-based building permit fee. Verify with the city building department. | 2–6 weeks. | Generally allowed | Uncommon in Florida; finishing a basement requires egress and permits. Exempt: N/A |
| 🚗 Garage / Carport | Permit required | city | Valuation-based fee. Verify with the city building department. | 2–8 weeks. | Generally allowed | A new garage requires a building permit under the Florida Building Code Residential. Exempt: N/A |
| ☀️ Rooftop Solar PV | Permit required | city | Electrical permit fee set by the city. Verify with the city building department. | 2–4 weeks. | Generally allowed | Rooftop PV requires an electrical permit; products in the High-Velocity Hurricane Zone (Miami-Dade, Broward) require Florida Product Approval / NOA. Exempt: N/A |
| 🌡️ HVAC Replacement | Permit required | city | Mechanical permit fee set by the city. Verify with the city building department. | 1–2 weeks. | Generally allowed | Furnace, AC, or heat-pump replacement requires a mechanical permit and inspection. Exempt: N/A |
| 🍳 Kitchen Remodel | Permit required | city | Building + electrical + plumbing permit fees. Verify with the city building department. | 2–6 weeks. | Generally allowed | Moving plumbing/electrical or walls triggers permits. Exempt: N/A |
| 🛁 Bathroom Remodel | Permit required | city | Building + plumbing + electrical fees. Verify with the city building department. | 2–6 weeks. | Generally allowed | Plumbing/electrical relocation requires permits. Exempt: N/A |
| 🏗️ Room Addition | Permit required | city | Valuation-based building permit; impact fees may apply. Verify with the city building department. | 3–8 weeks. | Generally allowed | Expanding the footprint requires FBC plan review and zoning compliance. Exempt: N/A |
| 🪟 Window / Door Replacement | Conditional | city | Permit fee if changing the opening; in-kind swap is often exempt. | Same day / Over-the-Counter where required. | Restricted | In the HVHZ (Miami-Dade, Broward) windows within 1 mile of the coast must be impact-rated / Florida Product-Approved. Enlarging openings needs a permit. Exempt: In-kind same-size replacement generally needs no permit. |
| 🏘️ Roof Replacement | Permit required | city | Roofing permit fee set by the city. Verify with the city building department. | 1–3 weeks. | Generally allowed | Re-roofing requires a roofing permit; the HVHZ requires product-approved materials. Exempt: N/A |
| 🅿️ Driveway / Parking Pad | Conditional | city | Private flatwork generally needs no building permit; right-of-way/curb cut needs a separate permit. | Varies. | Generally allowed | A curb cut or work in the public right-of-way requires a separate permit from the city / public works. Exempt: N/A |
| 🏊 Swimming Pool / Spa | Permit required | city | Building permit + electrical; fee set by the city. Verify with the city building department. | 3–8 weeks. | Generally allowed | Pools require a permit and barrier per FBC Section 454 / R4101 (self-closing gate, alarms, entrapment protection). Exempt: N/A |
| 🧱 Retaining Wall | Conditional | city | No fee under the exemption; a permit applies if over the threshold. | 2–4 weeks if required. | Generally allowed | Taller or surcharge-supporting walls need design and a permit. Exempt: Retaining walls ≤4 ft (bottom of footing to top), not supporting a surcharge, are exempt (FBC R105.2). |