Building Permit Guide for Miami-Dade County, Florida (2026)

Building permits in Miami-Dade County operate under stricter rules than anywhere else in Florida. The county sits entirely within the High Velocity Hurricane Zone (HVHZ), which means every window replacement, roof job, and structural repair must meet wind-load standards that exceed the rest of the state. Add in a large network of incorporated cities that each run their own building departments, and it's easy to apply to the wrong office or miss a product approval requirement that will send your project back to square one. This guide covers what Miami-Dade homeowners and contractors need to know in 2026.

Who Issues Building Permits in Miami-Dade County?

Miami-Dade County's Department of Regulatory and Economic Resources (RER) — specifically its Building Division — issues permits for properties in unincorporated Miami-Dade County. However, a large portion of the county's population lives inside incorporated municipalities that each maintain a separate building department. The City of Miami, City of Hialeah, Miami Beach, Coral Gables, Doral, Aventura, and more than 30 other cities all process their own permits independently of the county.

Before submitting any application, confirm your jurisdiction by checking your property's folio number. County-jurisdiction properties have folios beginning with "30". If your folio starts with a different prefix, your property falls inside an incorporated city — contact that city's building department directly. Applying to the wrong office means starting over, and permit fees may not be transferable. For a regional comparison, see our guide on Broward County building permits.

What Projects Require a Building Permit in Miami-Dade County?

The Florida Building Code requires a permit for virtually all construction, alteration, repair, and demolition work on structures and their systems. In Miami-Dade, this includes:

• Roof replacement: Every re-roofing project, including full tear-offs and repair patches over a certain area, requires a permit.
• Pool installation: New pools, hot tubs, and spa installations all require building and electrical permits plus barrier/fence permits.
• Window and door replacement: Unlike most Florida counties where a like-for-like window swap might be considered minor, every window and door replacement in Miami-Dade requires a permit due to HVHZ rules. Florida Building Code Section 105.1 removes any like-for-like exemption for HVHZ properties. See our window and door replacement permit guide for details.
• HVAC replacement: New air handler and condenser units always require mechanical and electrical permits.
• Room additions: Any expansion of the home's footprint or conditioned space requires a full building permit with engineered plans.
• Electrical work: Panel upgrades, new circuits, and EV charger installations all require separate electrical permits.
• Plumbing work: New water service lines, sewer connections, and fixture rough-ins need plumbing permits.

Sub-permits for electrical, plumbing, mechanical, and roofing are tied to the master building permit. Each trade contractor must pull their own sub-permit before work begins.

What Is the HVHZ and Why Does It Matter for Miami-Dade Permits?

The High Velocity Hurricane Zone is a designation under the Florida Building Code that covers Miami-Dade and Broward counties. Miami-Dade enforces a minimum design wind speed of 175+ mph — the highest residential threshold in the continental United States. This has two major practical consequences for anyone pulling a permit:

• Miami-Dade Notice of Acceptance (NOA): Every window, door, exterior cladding, shutter, and roofing system installed in unincorporated Miami-Dade must carry a Miami-Dade NOA. This is a separate, more rigorous certification than the generic Florida Statewide Product Approval that satisfies most other Florida counties. Products must survive TAS 201/202/203 large-missile impact testing at the required wind speeds. Substituting a product with only a Florida approval will fail inspection.
• No like-for-like exemptions: The standard Florida Building Code allows minor repairs and like-for-like replacements to proceed without a permit in certain cases, but the HVHZ eliminates most of those exemptions. If you replace a window in Miami-Dade, even with an identical unit in the same opening, you need a permit and a product with an active NOA.

Because of these requirements, hiring a contractor familiar with Miami-Dade's product approval database is essential. Using the wrong product — even one that looks identical to the original — means a failed inspection and the cost of re-doing the work with an approved product. If you're installing hurricane shutters, the same NOA rules apply.

How Much Does a Building Permit Cost in Miami-Dade County?

Miami-Dade calculates most permit fees at approximately 0.5% of the declared construction value, with a minimum fee of $110 per permit. Here are typical examples:

• Impact window installation: ~$577 in permit fees
• Kitchen remodel ($80,000 project): ~$1,864 in base permit fees
• Roof replacement: $300–$700 depending on declared value
• New pool: $700–$1,500+ depending on scope
• New single-family home: $4,000–$8,000+ for all sub-permits combined

On top of the base building permit fee, expect additional charges for plan review (typically 65% of the base fee), DERM environmental review, Fire Department review on applicable projects, and a state-mandated surcharge. Budget roughly 75–100% on top of the base permit fee to cover all surcharges. A full cost breakdown for Florida permits statewide is available in our Florida building permit cost guide.

Miami-Dade also requires a Notice of Commencement for any project where the contract value exceeds $2,500 — a lower threshold than the $5,000 limit used in most other Florida counties. The NOC must be recorded with the Miami-Dade Clerk of Courts before construction begins.

How Do You Apply for a Building Permit in Miami-Dade County?

Miami-Dade processes permit applications through its online portal. Most project types no longer accept walk-in paper submissions. The application process follows these steps:

1. Verify jurisdiction: Confirm your property folio starts with "30" and falls under county jurisdiction, not a city building department.
2. Gather documents: You'll need a completed application, signed-and-sealed construction drawings (for structural and most trade projects), a property survey dated within the past year, contractor license verification, and a building valuation worksheet. For HVHZ projects, include Miami-Dade NOA numbers for every product being installed.
3. Submit through the portal: Upload documents as flattened PDFs at 300 dpi or less. Total file size cannot exceed 250 MB per submission.
4. Pay fees: Fees are due at submission for most project types.
5. Track plan review: Plan reviewers from relevant disciplines (structural, electrical, plumbing, fire, DERM) will log comments in the system. Respond to each correction before your permit can be issued.
6. Schedule inspections: After your permit is issued, schedule required inspections through the portal as work progresses. All trades must pass final inspections before a Certificate of Occupancy or Certificate of Completion is issued.

If you're acting as an owner-builder, you can pull your own permit for your primary residence, but you must sign an affidavit acknowledging responsibility for code compliance. You still need engineer-stamped plans for structural work.

How Long Does It Take to Get a Building Permit in Miami-Dade?

Initial plan review in Miami-Dade typically takes 24 hours to 10 business days for straightforward residential projects with complete submissions. Under Florida HB 803 (effective July 1, 2026), the county must issue an initial response on projects valued under $15,000 within 5 business days. Larger or more complex projects — room additions, new construction, commercial work — typically take 3 to 6 weeks for initial review, with additional time for correction cycles.

The complete permitting process from application to final inspection typically runs 6 to 12 weeks for most residential projects, assuming complete plans at first submission. Incomplete applications — missing NOA numbers, unsigned plans, or an outdated survey — are among the most common reasons for delays. Expedited review is available for an additional fee on qualifying projects.

For context on how Miami-Dade timelines compare to other South Florida counties, see our statewide permit guide.

Does the Florida HB 803 $7,500 Exemption Apply in Miami-Dade?

Florida HB 803, which took effect July 1, 2026, exempts single-family homeowners from needing a permit for qualifying non-structural, non-trade repair work valued under $7,500. In Miami-Dade, this exemption does apply for truly cosmetic repairs — interior painting, floor refinishing, cabinet replacement, and similar work that doesn't involve the structure, electrical, plumbing, or mechanical systems.

However, the HVHZ significantly narrows what qualifies. Because Miami-Dade requires a permit for all window and door replacements, virtually any exterior repair involving a product with NOA requirements will still need a permit regardless of cost. Electrical, plumbing, mechanical, structural, and gas work always require a permit no matter the project value. See our full HB 803 exemption guide for the complete list of qualifying and non-qualifying work types, and what to do if you build without a permit.

Skip the headache — tell us about your project and we'll match you with a licensed Miami-Dade permit pro who knows the HVHZ requirements cold.