Pinellas County, FL Environmental Rules: Boat Dock Permits (2026)

Pinellas County Code § 58-543(a) is direct: 'No person shall construct any dock or other obstruction to navigation within the waters of the county without having first obtained a permit for such construction from the county.' The same section sets construction standards: docks in tidal waters need at least 18 inches of water depth at the slip and along the access channel at mean low tide (§ 58-543(f)), the same 18-inch minimum applies in nontidal waters measured from ordinary low water (§ 58-543(g)), and boat lifts are barred wherever they would harm nearby natural resources (§ 58-543(e)). Live-aboard facilities cannot be permitted without infrastructure and solid-waste service equivalent to residential units (§ 58-543(b)).

Several structures are prohibited outright: no docking facility is allowed on the open sandy beaches of the Gulf of Mexico, no dock, boardwalk or pier may run parallel to the shoreline within the littoral zone between the mean high and mean low water lines, and no roofed structure other than a covered boat slip, and no vertical walls, may be built over the water (§ 58-543(k)-(m)). No commercial or multiuse dock may be built or expanded where the state has determined the area critical to West Indian Manatee survival (§ 58-543(i)).

Permits issued under this article do not take effect until 30 days after issuance, and any appeal must run its course first; permits then expire one year from issuance, though the county will grant up to two automatic one-year extensions and up to two more for good cause on written request (§ 58-538). Building a dock without a permit gives the owner just ten days from written notice to file an after-the-fact application or remove the structure, and the violation is reported to the Pinellas County Construction and Licensing Board if a licensed contractor built it (§ 58-545).