WallDockDeck
Islamorada · Monroe County

How high does a seawall have to be in Islamorada?

No minimumset in local code

Islamorada's Village Code sets no minimum or maximum seawall top elevation in any datum. Its shoreline-hardening rules are strict: vertical seawalls are barred on open water, and a damaged seawall is to be repaired with riprap and native plants unless riprap is shown not to be feasible.

Source: Islamorada, Village of Islands, Village Code Ch. 30 Land Development Regulations, Sec. 30-1545 (Bulkheads, seawalls or riprap); also Sec. 30-1542 and Sec. 6-94.4 · Verified 2026-10

The detail

No fixed elevationIslamorada Village Code Sec. 30-1545, Bulkheads, seawalls or riprap, sets no seawall top elevation in NAVD88, NGVD29 or any other datum.
Open waterNew vertical seawalls or bulkheads are not permitted on open water except under F.S. 373.414(5). Vertical seawalls as defined in Rule 62-330, F.A.C., shall not be permitted. Sec. 30-1545(a) and (b).
Altered shorelinesHardening with bulkheads, seawalls and other vertical structures may be permitted only to stabilize severely eroding shorelines under Rule 62-330.0501(12), F.A.C., and the conditions in subsection (e). Sec. 30-1545(c).
Retention behind the wallThe design must include a minimum six-inch retention swale, berm or curb directly landward of the system. Sec. 30-1545(b) and (e)(5).
RepairsA deteriorated, lawfully existing seawall may be repaired or replaced, keeping the existing footprint to the maximum extent practicable. Damaged seawalls shall be repaired using riprap with native shoreline vegetation, and bulkheads are permitted only if riprap with filter cloth is not feasible. Sec. 30-1545(g).
Cap widthA seawall may have a cap up to two feet wide without being considered a dock. Sec. 30-1545(i).
SetbackThe shoreline setback does not apply to seawalls, retaining walls, riprap and bulkheads permitted under the division. Sec. 30-1542(c).
V and Coastal A zonesBulkheads and seawalls need other-agency authorization, must stand clear of buildings, and need a design professional's analysis showing no harmful diversion of floodwaters or wave runup. Sec. 6-94.4(d)(1).

Your city's height sheet

The elevation your city requires, the datum it is measured in, and the section of code that says so. One page.

Available for the cities whose rule we have verified and sourced.

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The county rule behind this

What applies across Monroe County, and where each city departs from it.

Monroe CountySeawall requirements county-wide

The same question, nearby

The rule changes at the city line, not the county line.

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Other questions about Islamorada

Seawall permit processDo I need a permit to repair a seawall in Islamorada?Dock permit & size limitsHow big a dock can I build in Islamorada?Boat lift rulesWhat are the boat lift rules in Islamorada?Waterfront deck requirementsWhat are the deck setback and railing rules in Islamorada?Checking a marine contractorHow do I check a marine contractor in Islamorada?Storm prep & documentationWhat are the storm and debris rules in Islamorada?

Twelve signs a seawall is failing

What to look for, where to look for it, and what it means when you find it. Walk your wall in twenty minutes.

A screening sheet for owners, not an engineering inspection.

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