Boat lifts in Miami Beach

Seawall-mounted lifts in Miami Beach

Elevator lifts bolt to the seawall, so the wall's height and condition matter. If the lift job includes seawall work of $300 or more per linear foot, the city's 5.7 ft NAVD standard applies to that work.[2]

Lift placement

DERM's short form covers single-family lifts that protrude no more than 25% of the waterway width, which matters on the narrower Miami Beach canals.[1]

Tide at Government Cut

NOAA's Miami Harbor Entrance gauge at Government Cut, beside South Beach, shows a 2.46 ft mean range and a 2.70 ft great diurnal range, with mean higher high water about 0.33 ft above NAVD 88 (1983 to 2001 epoch). A wall at 5.7 ft NAVD therefore stands roughly 5.4 ft above an average high tide, the margin the City wants for king tides and sea level rise.

Lift travel is set from that tide range plus your boat's draft.[4]

Bay-side lots and the aquatic preserve

Lots that face open Biscayne Bay rather than a dredged canal sit on the Biscayne Bay Aquatic Preserve, which counts as Outstanding Florida Waters. There the state dock exemption is 500 sq ft of over-water area, and the preserve says manatees move into the bay in the cooler months.[5][6][7]

What makes Miami Beach different

The city has about 55 miles of seawall, of which only about 5 miles are publicly owned, so most of it is the responsibility of private owners. Its seawall ordinance dates from Resolution R2016-4009 in May 2016, was strengthened in January 2021 and amended again in July 2025.[2][9]

Groundwater and flooding

The city notes that groundwater rises through the porous bedrock under Miami Beach, so a seawall alone cannot stop flooding. A raised wall stops tidal overtopping; drainage and flood protection handle the rest.[10]

Permits for boat lifts in Miami Beach

• City of Miami Beach Building Department: Building permit with a site plan, structural plans and an elevation certification.
• Miami-Dade DERM, Coastal Resources Section: Class I permit or exemption for seawalls, docks and lifts on the island canals and the bay, issued alongside the City permit. Phone (305) 372-6575.
• Florida DEP or South Florida Water Management District: State review where a dock or wall reaches open Biscayne Bay, part of the aquatic preserve, where FDEP's free online self-certification is not available.
• US Army Corps of Engineers, Jacksonville District: Federal authorisation for work in Biscayne Bay and Indian Creek; we confirm the small-project route since SPGP VI's stated July 2026 expiry.

Lift permits in South Florida

In Miami-Dade a boat lift on a new or existing dock, seawall or bulkhead is a short-form DERM permit, and a single-family lift may not protrude more than 25% of the waterway width. Palm Beach County treats lifts as Type 8 marine structures and asks for signed and sealed lift drawings with pile details. Under SPGP VI, lifts could go in existing boat slips without a seagrass survey, and two uncovered lifts were allowed.[1][12][13]

How long should a boat lift last?

Manufacturers we checked do not publish a fixed lifespan. What they do publish is upkeep: rinse after each use, inspect at least once a season, have it serviced at least once a year (more often in salt water), replace worn cables at once and change sacrificial zinc anodes regularly.[14]

Frequently asked questions