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Seawall inspections in Coral Gables

Seawall inspections for Coral Gables homes, where walls start at 6 ft NGVD and must carry 7.5 ft.

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We inspect the cap, face, joints, tiebacks and toe at low tide and tell you plainly what to fix now, what can wait and what your city requires.

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The short answer

NOAA's Cutler gauge south of Coral Gables shows a 2.13 ft great diurnal tide range, about half a foot less than at Government Cut. Coral Gables requires seawalls and bulkheads at a minimum of 6 ft NGVD 1929, structurally able to support 7.5 ft.

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When to book an inspection

Book one when something changes, not only when something breaks.

  • After a city citation or warning
  • Before buying or selling a waterfront home
  • After a hurricane or a run of king tides
  • When you see new cracks, stains or sinkholes

6 ft NGVD, built to carry 7.5 ft

Zoning Code 3-706(C) sets the minimum top of bulkheads and seawalls in Coral Gables at 6 ft NGVD 1929, and the structure must be able to support a wall of 7.5 ft. The City Attorney's 2022 opinion fixed a drafting error that had named NAVD 1988 instead, which matters because the two datums give different numbers for the same height.

Every inspection records the cap elevation against that standard.[1]

A smaller tide in the south bay

NOAA's Cutler gauge on Biscayne Bay, south of the Gables shoreline, shows a 1.94 ft mean range and a 2.13 ft great diurnal range, with mean higher high water about 0.19 ft above NAVD 88 (1983 to 2001 epoch). That is about half a foot less swing than at Government Cut, which helps lift and floating dock design in Cocoplum and Gables Estates.

We inspect at the lowest tide of the week so the lower wall face and the toe are visible.[2][3]

Fee breaks for living seawalls

Under Resolution 2025-342, Coral Gables cuts city permit fees by 20% for living seawalls that use pH-neutral cement or modular retrofit panels, and waives fees for existing homes making seawall improvements to address sea level rise.

Vertical crack and spalled concrete exposing rusty rebar on a seawall face above the waterline

Toe protection is often the cheapest way to add years to a wall that is still sound above the waterline.[4]

What makes Coral Gables different

Dock, mooring and wharf plans must show dimensions across the waterway, existing mangroves and the installation method, and carry DERM's preliminary approval; revised plans need a DERM stamp again. Properties in Cocoplum Section II must include a copy of the Cocoplum dock plan. The City also asks for a notarised Public Works permit application, colour photos of existing conditions and a survey.[5]

Tall seawall on a winding mangrove-lined waterway below a Mediterranean revival home

Fee incentives

Under Resolution 2025-342, living seawalls with pH-neutral cement or modular retrofit panels qualify for a 20% reduction in city permit fees, and a separate fee waiver applies to existing homes making seawall improvements to address sea level rise.[4]

Narrow timber dock reaching through a gap in red mangroves to a deeper channel

Permits in Coral Gables

  • Miami-Dade DERM, Coastal Resources Section: Class I permit, plus the preliminary approval the City asks to see before it looks at any dock or wall plans. Phone (305) 372-6575.
  • City of Coral Gables Development Services and Public Works: Building and Public Works permits for seawalls, bulkheads and docks, after DERM preliminary approval.
  • Florida DEP or South Florida Water Management District: State permit or exemption for docks and walls on the Gables canals and the bay, where aquatic preserve rules apply to open bay frontage.
  • US Army Corps of Engineers, Jacksonville District: Federal authorisation for bayfront and canal work, confirmed for each job since SPGP VI's stated July 2026 expiry.

What we check

We walk the full length of the wall from the land and the water.

Gap at the base of an old seawall at low tide with sand washing out from behind the wall
  • Cap: cracks, spalling, rust staining, height against the local standard
  • Face and panels: cracks, open joints, lean
  • Tiebacks and anchors: signs of movement
  • Toe: scour or undercutting
  • Land side: sinkholes, soft ground, weep holes

Who is responsible for a private seawall?

The property owner. Miami Beach requires owners to correct walls that let tidal water flow over or through them and can cite owners with no seawall at all. Fort Lauderdale presumes a wall is in disrepair if it lets upland soil erode, material pass through it, or tidal water flow onto neighbours or the street, and gives owners 60 days to show progress and 365 days to finish.[7][8]

City deadlines after a seawall citation
CityShow progressFinishOther
Miami Beach60 days730 days10 days to appeal; fines $250 then $500 per day
Fort Lauderdale60 days365 daysDisrepair presumed if water or soil passes through
Sources: City of Miami Beach, Seawall FAQs (Miami Beach Rising Above, PDF dated 6.16.25); City of Fort Lauderdale, Staff Report, Planning and Zoning Board, 16 Nov 2022, Case UDP-T22010 (Tidal barrier / seawall ordinance amendment, ULDR 47-19.3). Last updated October 28, 2026.

Frequently asked questions

How high must a seawall be in Coral Gables?

At least 6 ft NGVD 1929 under Zoning Code 3-706(C), and designed to support 7.5 ft. The City Attorney confirmed in 2022 that the datum is NGVD 1929, not NAVD 1988.

How much does the tide move in Coral Gables?

NOAA's Cutler station on Biscayne Bay shows a mean range of 1.94 ft and a great diurnal range of 2.13 ft (1983 to 2001 epoch).

Does Coral Gables give any break on seawall permit fees?

Yes. Living seawalls with pH-neutral cement or retrofit panels get 20% off city permit fees, and existing homes improving a seawall for sea level rise can get a fee waiver.

Sources

  1. CAO 2022-007: Legal Opinion Regarding Scrivener's Error in Zoning Code 3-706 Bulkheads and Retaining Walls (17 Aug 2022), City of Coral Gables, City Attorney. Accessed October 27, 2026.
  2. Datums for station 8723289, Cutler, Biscayne Bay (tidal epoch 1983 to 2001), NOAA Center for Operational Oceanographic Products and Services (CO-OPS), Tides and Currents. Accessed October 28, 2026.
  3. Datums for station 8723170, Miami Harbor Entrance (tidal epoch 1983 to 2001), NOAA Center for Operational Oceanographic Products and Services (CO-OPS), Tides and Currents. Accessed October 28, 2026.
  4. Solar, Open Air Dining, and Other Permits, City of Coral Gables. Accessed October 27, 2026.
  5. Permit Requirements for Development Services (rev. 07.22.2026), section Docks/Moorings/Wharves, City of Coral Gables Development Services Department. Accessed October 27, 2026.
  6. Class I Permit Application for Coastal Construction and Mangrove Trimming within Miami-Dade County (Revised May 2025), Miami-Dade County RER, Division of Environmental Resources Management (DERM), Coastal Resources Section. Accessed October 27, 2026.
  7. Seawall FAQs (Miami Beach Rising Above, PDF dated 6.16.25), City of Miami Beach. Accessed October 27, 2026.
  8. Staff Report, Planning and Zoning Board, 16 Nov 2022, Case UDP-T22010 (Tidal barrier / seawall ordinance amendment, ULDR 47-19.3), City of Fort Lauderdale. Accessed October 27, 2026.
  9. Seawalls and Sea Level Rise Induced Flooding (Florida Sea Grant compilation, includes City of Fort Lauderdale 'Frequently Asked Questions: Seawall Ordinance Implementation', 25 Jan 2017), Florida Sea Grant (reproducing City of Fort Lauderdale and Florida Bar ELULS material). Accessed October 27, 2026.

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