Miami Dock Permit: The Four-Agency Stack, in Order

A private dock in Miami-Dade touches four separate government agencies before the first piling goes in. The sequence matters as much as the permits themselves — the county, the state, the federal government, and the Board of Trustees that owns the bay floor all have to say yes, and they do not all say yes at once.

Published October 2, 2026

When a buyer asks me about adding a dock to a waterfront home in Miami, I tell them the same thing I tell them about what waterfront actually means here: the water looks simple from the listing photos, and the paperwork is not. Four agencies have jurisdiction over a dock in Miami-Dade, they operate on their own timelines, and submitting to the wrong one first does not speed anything up — it usually means starting over.

This is the order. It is not optional.

Agency 1: Miami-Dade DERM / RER — the Class I permit

The Department of Regulatory and Economic Resources (RER), through its Division of Environmental Resources Management (DERM), issues the Class I permit. This is the county-level authorization for any work in, on, over, or upon tidal waters or coastal wetlands in Miami-Dade — including incorporated municipalities. If you are building a dock anywhere in the county, the Class I application is where you start.

The Class I also carries a second function that buyers often miss: most of the submerged land in Biscayne Bay is owned by the State of Florida and managed by the Board of Trustees of the Internal Improvement Trust Fund. DERM has been delegated authority to grant consent on the Trustees' behalf for work in these waters. That means one application covers both the county permit and the submerged land consent — you do not file separately with the state for that piece of it, at least not in Biscayne Bay.

File the Class I first. The other agencies coordinate around it.

Agency 2: Florida DEP — the environmental resource permit

The Florida Department of Environmental Protection (FloridaDEP) issues the state-level Environmental Resource Permit (ERP). For docks, the threshold determines which track you take:

• Self-certification (exemption): up to 500 square feet of over-water area in Outstanding Florida Waters, or 1,000 square feet in canals and other waters; maximum two vessel slips; no charge.
• Exemption verification: confirms you qualify for an exemption; $100 fee.
• General permit: up to 2,000 square feet of over-water area; maximum two vessel slips; $250. This covers most single-family residential docks.
• Individual ERP: over 2,000 square feet, multiple slips, or projects with significant environmental review. Fees run from $420 to $14,000 or more depending on complexity.

Florida DEP also enforces dimensional limits that do not bend regardless of permit type. The access walkway is capped at four feet wide. The terminal platform cannot exceed 160 square feet. The dock cannot extend waterward beyond mean high water by more than 500 feet, and it cannot reach water deeper than four feet below mean low water. Those last two limits exist to protect navigation and seagrass beds; the agencies do not negotiate them.

Agency 3: U.S. Army Corps of Engineers — the federal authorization

The Army Corps has jurisdiction under two federal statutes: Section 10 of the Rivers and Harbors Act (navigable waters) and Section 404 of the Clean Water Act (fill in waters of the United States). A dock extending into Biscayne Bay triggers Section 10. Any fill — even a small amount — can bring in Section 404 as well.

In practice, most residential dock projects in Miami go through the Corps on a nationwide permit rather than an individual permit, which shortens the timeline considerably. But the nationwide permit still requires confirmation that the project qualifies, and certain conditions — proximity to seagrass, manatee zones, or critical habitat — can pull a project into the longer individual permit process. The Corps will not tell you which track applies until they see the application.

FDEP and the Corps coordinate during review, and in many projects they process their respective permits in parallel once the Class I is filed. The Corps does not wait for FDEP to finish before starting its review, but it does need the state's water quality certification before issuing its own authorization.

Agency 4: Board of Trustees of the Internal Improvement Trust Fund

As noted above: in Biscayne Bay, DERM acts as the Trustees' delegate, so the Class I application handles the submerged land consent. For other Florida waters, or for projects that fall outside the DERM delegation, a direct application to the Trustees — through the Florida Department of Environmental Protection — may be required. This is the step buyers most often discover late, because it does not show up in the county permit checklist and FDEP's general guidance does not always flag it prominently.

If the dock involves a long-term structure on state-owned submerged land, the Trustees may require a lease rather than a one-time consent. Leases are renewable and recorded, which means they show up in a title search — something a buyer's attorney should be looking for on any waterfront property.

What the sequence actually looks like in practice

Most applicants file the Class I and the FDEP application around the same time, after a pre-application meeting with DERM to confirm the project scope. The Corps is typically notified by FDEP during the state review, and the Corps' own public notice period runs concurrently. A project that qualifies for the general permit track and triggers no special conditions might reach authorization in four to six months. A project pulled into individual permit review can take considerably longer.

What slows projects down is almost always one of three things: incomplete applications (DERM sends these back, and the clock restarts), proximity to seagrass or protected species (both the Corps and FDEP apply extra scrutiny), or discovering that the proposed dock location exceeds the dimensional limits and requires redesign. The dimensional limits are not negotiable, and an application that exceeds them will not be approved — not because the agencies are being difficult, but because the limits exist in the statute.

Before you make an offer on a waterfront home

If the listing shows a dock, ask for the permit documentation before you are under contract. A dock with a missing permit can be unpermittable in its current configuration — meaning the prior owner built something the agencies would not have approved if asked. Correcting that after closing is the buyer's problem.

If the home has a seawall but no dock, and you intend to build one, a pre-application meeting with DERM costs nothing and will tell you quickly whether the lot is even eligible. Some lots in Biscayne Bay are subject to navigation setbacks, channel locations, or existing easements that rule out a private dock entirely. It is worth knowing that before the offer, not after.

Frequently asked questions about Miami dock permits

Do I need all four permits, or just some of them?

Most residential dock projects in Miami-Dade require at least three: the DERM Class I (which covers submerged land consent for Biscayne Bay), the FDEP environmental resource permit or verification, and the Army Corps authorization. The Board of Trustees step is embedded in the Class I for Biscayne Bay. If your project is in other waters or involves a structure that requires a long-term lease rather than a one-time consent, a separate Trustees filing may be necessary.

How long does the permit process take?

A straightforward single-family dock qualifying for the FDEP general permit and a Corps nationwide permit can move in four to six months. Projects requiring individual review — because of size, complexity, proximity to protected species or habitat, or fill beyond minimal amounts — take longer, and the timeline is difficult to predict without knowing the specific site conditions.

Can a prior owner's unpermitted dock be legalized after I buy?

Sometimes. The agencies will evaluate the existing structure against current permit criteria. If it exceeds dimensional limits (walkway over four feet wide, terminal platform over 160 square feet, depth beyond four feet MLW), the structure will need to be modified to qualify. If the location conflicts with navigation, seagrass protection, or other restrictions, it may not be permittable at all. A pre-purchase review of any existing dock's permit status is worth the cost of the attorney's time.

Does an existing dock permit transfer with the property?

FDEP permits are typically associated with the property rather than the owner, but the agencies generally want to be notified of ownership changes for larger structures. Ask your attorney to confirm permit status and any conditions attached to it as part of the title review.

What is the Army Corps nationwide permit, and do I qualify?

Nationwide permits (NWPs) are pre-approved categories of activities the Corps has determined to have minimal environmental impact. Several NWPs cover residential piers, docks, and small fills. Whether your project qualifies depends on its size, location, and whether any special conditions apply. A marine contractor or environmental consultant familiar with Miami-Dade projects can tell you quickly which nationwide permit category is most likely to apply.

Is a submerged land lease visible in a title search?

Yes. Submerged land leases are recorded documents and will appear in a comprehensive title search. If a dock on a property you are buying is on state-owned submerged land and no lease is in the chain of title, that is a question for the title agent before closing — not a surprise to discover after.

Stefania Riverin, Licensed Real Estate Sales Associate · FL SL3620067 · Brokered by NB Elite Realty · 1101 Brickell Ave, Miami, FL 33131 · Equal Housing Opportunity. General information about the permitting process, not legal advice; permit requirements change and a licensed contractor or attorney familiar with the current rules should review any specific project.