What a Dock Permit on the St. Johns River Actually Involves

By Taylor Hodges, Broker / Owner · March 19, 2024

Key Takeaways

• Dock work typically involves the water management district, the Army Corps, and sometimes the state land office.
• Much of the river bottom is state sovereign submerged land, which can require a lease or consent of use.
• The river is designated manatee habitat, which constrains in-water construction timing.
• An existing dock is not proof of a permitted dock — ask for the paperwork.

Who has jurisdiction

A dock on the St. Johns River is not a county building permit with extra steps. Depending on what you are building and where, three separate bodies can have a say, and they do not coordinate with each other on your behalf.

The St. Johns River Water Management District has authority over work in and adjacent to the water throughout the region. This is your primary environmental review.

The Army Corps of Engineers reviews structures in navigable waters. Much of this runs through general permits rather than individual review, which is faster, but it is a separate authorization.

The State of Florida enters the picture through sovereign submerged land, and this is the one that catches people out.

The sovereign submerged land problem

Florida holds title to the beds of navigable waters in trust for the public. Much of the St. Johns River bottom is therefore state land, not yours, even where your deeded property runs to the water.

The practical consequence is that a structure extending out over that bottom may require a lease or a consent of use from the state. For a modest private residential dock this is frequently straightforward, and consent of use is often the applicable path. For something larger — a long dock reaching deep water, a boathouse, multiple slips, anything with a commercial flavour — it becomes a more serious process with a longer timeline and, in the lease case, an ongoing obligation.

Buyers planning a substantial dock should establish this before closing rather than after. The gap between "I will put in a dock" and "I will put in the dock I actually pictured" is where the disappointment lives.

Manatees and timing

The St. Johns is designated manatee habitat throughout our service area. This shapes two things.

It constrains in-water construction windows in some locations and circumstances, which affects when work can happen rather than whether it can. Plan on a project timeline that is set by the calendar as much as by the contractor.

It also drives the speed zones you will be running under. This is worth knowing before you buy a boat for the property rather than after — the run to open water may be slower than the map distance suggests.

The existing-dock trap

The most common expensive mistake we see on river property is a buyer assuming that because a dock is standing, it was permitted. Unpermitted structures are common on this water, particularly on older camp-style property that has been added to informally over decades.

An unpermitted dock becomes the new owner's problem. It can complicate an insurance renewal, it can complicate a resale when the next buyer's agent asks the question you did not, and it is an enforcement exposure if the district ever takes an interest.

Ask for the permit paperwork as part of due diligence, in writing. If it does not exist, that is not necessarily a reason to walk — it is a reason to negotiate, and to understand what bringing it into compliance would involve before you commit.

What this means for pricing

A permitted dock with documentation, adequate depth at low water, and a lift in good condition is worth substantially more than the same house with a decaying unpermitted structure — and the gap is wider than most sellers assume when they price.

This is also a large part of why automated valuation tools perform so badly on river property. No algorithm is reading your permit file. If you are selling, assembling that documentation before listing reliably returns more than it costs.