Boat lift installation in Miami

Which lift suits you

The right lift depends on how you moor.

• Four-post lift: on its own pilings in a slip beside the dock
• Elevator lift: mounted on the seawall face, good where pilings are hard to place
• Floating lift: for jet skis and small boats, no pilings

Installing in an existing slip

SPGP VI let lifts go into existing boat slips without a seagrass survey, the simplest route on Biscayne Bay waters inside the seagrass range. A lift in a new slip, or one that extends further out, gets more review.[2]

Sizing to the waterway

DERM's short form only covers single-family lifts that protrude no more than 25% of the waterway width, which limits lift placement on narrow Miami canals. We measure the canal before choosing a four-post or seawall-mounted elevator lift.[1]

Bayfront lots sit on Outstanding Florida Waters

The Biscayne Bay Aquatic Preserve covers 64,607 acres from the Oleta River to Card Sound and is treated as Outstanding Florida Waters. On open bay frontage that halves the state dock exemption to 500 sq ft of over-water area, against 1,000 sq ft on an artificial canal, and seagrass damage in the preserve can bring a fine of up to $1,000.

Lift piles and floating lifts are kept off grass beds.[4][5][6]

What makes Miami waterfront work different

Most of Biscayne Bay and its natural tributaries, including the Miami River and Little River, are state-owned submerged lands, so docks over them need the state's consent alongside the DERM permit. The Biscayne Bay Aquatic Preserve is listed by DERM as a permitting contact, and FDEP's free online dock self-certification is not available in aquatic preserves. The federal seagrass range used in dock design reaches central Biscayne Bay.[1][6][2]

City of Miami seawall height

In 2020 the City considered an ordinance (File 7338) to set a 6 ft NAVD 88 minimum for new and rebuilt seawalls east of US-1, outside the Miami River. We have not confirmed that it was adopted, so for every Miami seawall job we confirm the current height rule with the City before design.[7]

Permits in Miami

• Miami-Dade DERM, Coastal Resources Section: Class I permit for any work in, on or over tidal water, the Miami River included, with exempt, expedited and short-form routes for small jobs. Phone (305) 372-6575.
• City of Miami Building Department: Structural and zoning approval for seawalls, docks and lifts inside city limits.
• Florida DEP or South Florida Water Management District: State permit or exemption, and consent to use the state-owned bottom of Biscayne Bay, the Miami River and Little River, which DERM grants for most of the bay on the state's behalf.
• US Army Corps of Engineers, Jacksonville District: Federal sign-off for work in the bay and the river. SPGP VI, the small-project route, passed its stated 27 July 2026 expiry, so we confirm the current route for each job.

Permits for a new lift

Miami-Dade issues a short-form DERM permit for a lift on a new or existing dock, seawall or bulkhead, as long as a single-family lift does not protrude more than 25% of the waterway width. Florida exempts floating boat lifts and floating platforms up to 500 sq ft combined (200 sq ft in Outstanding Florida Waters). In aquatic preserves, a roof may not overhang more than 1 ft beyond the lift and boat.[1][5][6]

Relocating a lift

Moving a lift to a new slip or a new home is a new installation in the eyes of the permit office, so we plan pilings and permits for the new spot. Removing the old lift and old piles is DERM-exempt in Miami-Dade.[1]

Frequently asked questions