Seawalls and Dock Permits in Miami: A Buyer’s Guide

August 4, 2026

If you are buying a Miami waterfront home, the permits behind the seawall and dock matter as much as the house. In fact, this is the part of the deal that quietly derails closings. On top of that, 2025 brought some of the biggest changes in decades. Here is what you need to know before you sign anything.

Who regulates the water’s edge

Work at the shoreline can involve several agencies at once. That is exactly why so many owners get confused about who to call. Miami-Dade County’s Division of Environmental Resources Management, through its Coastal Resources Section, sits at the center of seawall and dock approvals.

Depending on the project, other agencies may also have a say. These include the Florida Department of Environmental Protection, the South Florida Water Management District and the U.S. Army Corps of Engineers. Your city building department is part of the mix as well.

As a rule, any new seawall, seawall cap, dock, boat lift or dredging job needs a permit. In many cases, more than one agency has to sign off before work can begin. For that reason, a good waterfront contractor or permit expediter is worth their weight in gold. They already know which agencies apply to a given property, and that saves you from paying for delays.

The 2025 reforms changed the game

Two changes matter for buyers right now. Both are major shifts from how things worked just a couple of years ago.

First, elevation

Miami Beach passed an ordinance in July 2025 that sets a minimum seawall height of 5.7 feet NAVD. Owners have a 730-day window to comply. Also, when repairs are substantial, the owner must bring the wall up to that height.

This is part of a wider regional push to raise seawalls against rising water. Other cities across Miami-Dade will likely follow a similar path in the coming years. As a result, a compliant wall today is a real selling point, not just a box to tick.

Second, speed

Miami-Dade also rolled out sweeping permitting reform, including a new central Gold Key permitting portal. The county now aims to review and issue most seawall and bulkhead permits within 90 days. Before, waits could stretch up to two years.

For buyers planning renovations or a new dock, that difference matters a lot. In some cases, it decides whether a project is realistic during your time as the owner.

What this means when you buy

Do not assume the seawall is compliant just because it is standing. Before you close, find out three things:

The current condition of the seawall
Whether it meets the new elevation standard, or soon will have to
Whether the existing dock and lift structures have proper permits

Also, ask the seller directly about any open or unresolved permits from past work. An open permit can follow the property, and then it becomes your problem to close out.

An unpermitted dock is a real, measurable cost. So is a seawall that faces a required elevation upgrade. Either way, that cost belongs in your negotiation, not in your first surprise as an owner.

The takeaway

Overall, the 2025 reforms are good news. They bring faster, clearer permitting and a serious commitment to protecting these properties for the long term. However, they also mean elevation standards are rising. Buyers need to know exactly where a given seawall stands against that standard.

This detail often separates an informed purchase from an expensive lesson. So build it into your due diligence checklist, right next to the usual inspection and survey.

Chris King helps buyers ask the right questions about seawalls, docks and permits before they sign the contract. Let us protect your investment from the waterline up.