How much does it cost to replace a seawall in Florida?
Replacement cost depends on whether the old wall is removed or left behind a new one, the new wall's height and required cap elevation, material, access, soils, and engineering and permits. No verified residential average exists. Florida public replacement records dated 2017 to 2024 work out to roughly $3,000 to $7,200 per foot, but they are budgets and estimates for raised public walls, not residential prices.
About the numbers on this page
Florida Bulk Head does not publish statewide averages or quotes. Any dollar figures shown are cited from the named public source, with its date and scope, so you can judge how relevant they are to your project. Your price depends on a site-specific scope from a licensed contractor.
What Makes Replacement Different From New Construction
A replacement starts with a wall that is already there, a yard that depends on it, and usually neighbors' walls tied into it at both ends. Those facts add choices, and each choice carries cost.
- Remove the old wall, or build in front of it. Pulling the old panels, cap and anchors means demolition, hauling and disposal, and the yard behind is exposed while the new wall goes in. Many replacements instead set the new wall just waterward of the old one. Fort Lauderdale's 2024 Seawall Master Plan recommends building the new wall roughly 16 inches in front and burying the existing wall behind it, so the properties behind the walls are not compromised.
- How far waterward is allowed. Section 403.813(1)(e), Florida Statutes, exempts seawall restoration at the previous location, upland of it, or within 18 inches waterward of it from certain state environmental permits. The exemption does not change Chapter 161 coastal permitting, and state-lands authorization and county or city requirements can still apply. Going farther out than allowed usually means a different permit path.
- Temporary support and protection. Where the old wall must come out, or where excavation is needed for new anchors, the soil, pool decks, driveways and structures near the wall may need temporary support or careful sequencing. This is a design question for the contractor and, where required, a licensed engineer.
- New anchors. Replacement walls usually need a new tieback and deadman system or batter piles. Installing anchors means excavating behind the wall, which affects landscaping, irrigation and hardscape.
- Tie-ins and returns. The new wall has to join the walls next door and turn back into the yard at the property lines. A mismatch in height or alignment with a neighbor's wall can add work.
- Docks, lifts and utilities. Docks, boat lifts, davits and lines that attach to or pass through the old wall may need to be removed, protected or rebuilt.
Raising the Wall: Local Elevation Rules
Replacement is often when a wall has to be raised. A taller wall retains more soil and needs more material, and Fort Lauderdale's plan says raising by more than 1 foot calls for a built-up reinforced concrete cap doweled into the existing cap plus additional battered piling to carry the added load. Examples of local rules we could verify:
| Jurisdiction | What the source says | Source and confidence |
|---|---|---|
| Fort Lauderdale (Broward County) | The city's minimum top-of-wall elevation is 5.00 ft NAVD under Ordinance No. C23-05, adopted March 23, 2023; all but three of the city's inspected walls needed raising, by just over 1 foot to over 3 feet. | City 2024 Seawall Master Plan; high |
| Broward County | New and substantially repaired or rehabilitated seawalls in tidally influenced communities must reach at least 5 feet (or 4 feet if permitted before January 1, 2035 and convertible to 5 feet by January 1, 2050). A repair is substantial when more than 50% of a property's shoreline structure is modified. | Georgetown Climate Center summary of County Code Ch. 39, Art. XXV; medium (county code not opened directly) |
| Miami Beach (Miami-Dade County) | New seawalls must be built to a minimum of 5.7 ft NAVD, or 4 ft NAVD if designed to support a future 5.7 ft NAVD. Owners get up to 730 days to bring failing seawalls into compliance. | City press release on the January 2021 ordinance; high (later amendments not reviewed) |
| St. Augustine bayfront (St. Johns County) | A public project to fill a gap in the city's target flood protection elevation of +7.1 ft NAVD along about 1,700 LF of the bayfront. This is a city project target, not a rule for private walls. | City project fact sheet; high |
Northeast Florida Owners
We have not verified a minimum seawall elevation rule for private walls in Duval, St. Johns, Nassau, Clay, Flagler or Putnam counties. Ask your city or county building department, and have your contractor confirm the design elevation in feet NAVD88 before you compare prices. See Florida seawall permits.
Public Replacement Records in Florida
These primary public documents state both a length and a cost for seawall replacement, so a per-foot figure can be calculated. All are public walls, most were being raised, and none is a bid or final cost. The St. Augustine row is mostly repair with a short replaced section, so it sits outside the roughly $3,000 to $7,200 per foot span of the other records.
| Record | Scope | Arithmetic | What it shows |
|---|---|---|---|
| Fort Lauderdale 2024 Seawall Master Plan, concrete T-pile option | New wall in front of the old one, raised to 5.00 ft NAVD; labor and material only | $6,675,000 ÷ 2,225 LF = $3,000/LF; × 1.68 = $5,040/LF | The plan applies a 1.68 multiplier for construction overhead, permitting fees and engineering |
| Same plan, steel sheet pile option | Same wall; no cathodic protection, coatings or extra sacrificial thickness | $9,131,400 ÷ 2,225 LF = $4,104/LF; × 1.68 = $6,894.72/LF | Material choice alone changed labor and material by about 37% ($4,104 ÷ $3,000 ≈ 1.37) |
| Florida Senate LFIR #1829 (FY2019-20), Fort Lauderdale Cordova Road | Repair and replacement of about 1,000 LF, built higher for sea level rise | $4,000,000 ÷ about 1,000 LF = about $4,000/LF | A budget request for a raised city wall along a residential street |
| Florida Senate LFIR #1979 (FY2018-19), Fort Lauderdale | Replace about 1,000 LF of city seawall; design, permitting and construction | $4,000,000 ÷ about 1,000 LF = about $4,000/LF | $431,800 of the total was for design, permitting and construction engineering and inspection ($431,800 ÷ $4,000,000 ≈ 10.8%) |
| Florida Senate LFIR #2050 (FY2019-20), Fernandina Harbor Marina, Nassau County | Replace 267 LF, 4 ft taller; planning, permitting and site preparation | $1,040,000 ÷ 267 LF = $3,895.13/LF | Northeast Florida public marina wall |
| Florida Senate LFIR #1549 (FY2018-19), same marina | Replace 270 LF, 4 ft taller than the existing failed wall | $1,940,000 ÷ 270 LF = $7,185.19/LF | The same wall's budget changed by about 1.9 times between two requests |
| City of St. Augustine, Avenida Menendez (St. Johns County) | Face and cap repair, a new 2-ft wall behind, and about 85 LF replaced; about 570 ft project | $1,500,000 ÷ about 570 ft = $2,631.58/ft | Mixed scope; partial replacement inside a larger flood protection project |
Why These Are Not Residential Prices
Depending on the record, the figures include raising to new flood elevations, public soft costs such as design, permitting and inspection, and public-site conditions; Fort Lauderdale's base rates are labor and material only. Two of the Fort Lauderdale records may describe overlapping work. The Fernandina Beach requests show how much early budgets move. No public record we found states the length and cost of a residential replacement in Northeast Florida. For the full evidence set and method, see the Florida Bulkhead Cost Report.
How Replacement Estimates Are Structured
Fort Lauderdale's plan is a useful model of how to read an estimate: it prices labor and material per linear foot of wall, then applies a separate factor for overhead, permitting and engineering. A residential replacement estimate will not use that factor, but it should separate the same kinds of cost so you can see them.
Line items to look for in a replacement estimate
- Mobilization and demobilization, including barge or crane if needed.
- Survey, engineering and permit applications, and whether permit fees are included.
- Removal and disposal of the old wall, or preparation for a new wall in front, with the planned waterward offset.
- New wall per linear foot, with material, profile, pile type and embedment stated.
- Cap per linear foot, with the finished elevation in feet NAVD88.
- Tiebacks and deadmen, helical anchors or batter piles.
- Returns and tie-ins to neighboring walls.
- Backfill, filter fabric, weep holes or drains, and toe protection.
- Dock, lift and utility work, if any.
- Restoration of lawns, pavers, irrigation and fences.
- Allowances or unit prices for unknowns, and how changes are priced.
- Schedule, payment milestones and the date the price holds until.
Permits and Engineering
Replacement usually needs permits, even where a state exemption applies, because local building permits and other approvals are separate. Some work also requires signed and sealed drawings from a Florida-licensed professional engineer, particularly where the wall is being raised, the retained height is significant, or the wall is exposed to waves. Permit and engineering costs depend on the jurisdiction and scope more than on wall length, so they weigh more heavily on short walls. See Florida seawall permits for the agencies that may be involved.
Timing, Storm Damage and Insurance Documentation
After a storm, many owners on the same waterways need work at once, and schedules for contractors, materials and permit reviews can lengthen. If your wall has been damaged, document it before anything changes:
- Dated photos and video of the wall face, cap, joints and the yard behind it, at low tide if possible.
- Measurements of any lean, gaps, sinkholes or missing sections.
- Copies of earlier permits, surveys and any engineering for the wall.
- Every estimate, invoice and agreement in writing.
Insurance is policy-specific, and we make no statement about what your policy covers. For reference, the federal Standard Flood Insurance Policy Dwelling Form lists seawalls and bulkheads among property it does not insure. Other policies differ, so read your own policy and ask your agent or adjuster before you plan around coverage. Public disaster funding has paid for some public walls, such as St. Augustine's project, which lists a FEMA Hazard Mitigation Grant Program award; that does not mean funding is available for a private wall.
Next Steps
If you are not sure the wall needs replacing, start with repair vs. replacement. To see how length, material, access and condition change the scope, use the Bulkhead Cost Calculator. For a price on your own wall, request an estimate with photos and dimensions. Barefoot Marine Construction, which operates Florida Bulk Head, works directly in Duval, St. Johns, Nassau, Clay, Flagler and Putnam counties; elsewhere in Florida we accept inquiries, and matching is subject to contractor availability.
Explore scenarios for your own wall
The Bulkhead Cost Calculator shows how length, material, access and condition change the scope, using a documented, editable set of provisional assumptions.
Frequently asked questions
Is it cheaper to build a new seawall in front of the old one?
It can be, because it avoids demolition and disposal and keeps the yard supported during construction. Fort Lauderdale's plan recommends building about 16 inches in front of the old wall for its own replacements. Whether it works for yours depends on how far waterward your jurisdiction allows, navigation in front of the wall and how the new wall ties into your neighbors'.
Do I have to raise my seawall when I replace it?
It depends on local rules. Fort Lauderdale's 2024 plan gives the city minimum as 5.00 ft NAVD, Miami Beach's 2021 ordinance requires 5.7 ft NAVD for new seawalls (or 4 ft designed to support 5.7), and Broward County sets a standard for tidally influenced communities. We have not verified a private-wall elevation rule in Northeast Florida, so confirm with your building department.
Can I replace only part of my seawall?
Sometimes. St. Augustine's bayfront project replaces about 85 LF of failing wall within a larger repair and flood wall project. Be aware that some local rules treat major work like a new wall: in Broward County, as summarized by the Georgetown Climate Center, modifying more than 50% of a property's shoreline structure counts as a substantial repair that triggers the elevation standard.
Does flood insurance pay for seawall replacement?
We cannot tell you what your policy covers. The federal Standard Flood Insurance Policy Dwelling Form lists seawalls and bulkheads among property not insured, and other policies vary. Read your policy, ask your agent or adjuster, and keep dated photos and written estimates either way.
Why did Fernandina Beach's replacement budget change so much?
The city's FY2018-19 request put the marina wall at $1,940,000 for 270 LF, and its FY2019-20 request put it at $1,040,000 for 267 LF. Early budget requests are made before bids, and scope, design and market conditions can change. It is a good reason not to treat any public figure as a price.
What should a seawall replacement estimate include?
At minimum: the length, material and system, cap elevation in feet NAVD88, what happens to the old wall, anchors, toe protection and drainage, permits and engineering, restoration, and the date the price holds. The checklist on this page lists the line items to compare.
Sources and references
- 2024 Seawall Master Plan – Summary Report — City of Fort Lauderdale (TRC Worldwide Engineering for Craven Thompson & Associates). Accessed November 2, 2026. Sections 1.1, 4.2–4.4 and Table 4.5.1; per-foot rates derived from tabulated cost ÷ length.
- Local Funding Initiative Request #1829 (FY2019-20): Fort Lauderdale Cordova Road Seawall Replacement — The Florida Senate. Accessed November 2, 2026.
- Local Funding Initiative Request #1979 (FY2018-19): City of Fort Lauderdale Seawall Replacement Project — The Florida Senate. Accessed November 2, 2026.
- Local Funding Initiative Request #2050 (FY2019-20): Fernandina Beach Shoreline Stabilization — The Florida Senate. Accessed November 2, 2026.
- Local Funding Initiative Request #1549 (FY2018-19): City of Fernandina Beach Stormwater Shoreline Stabilization — The Florida Senate. Accessed November 2, 2026.
- Avenida Menendez Seawall Project Fact Sheet — City of St. Augustine Public Works Department. Accessed November 2, 2026.
- Section 403.813, Florida Statutes: Permits issued at district centers; exceptions — The Florida Senate. Accessed November 2, 2026. Paragraph (1)(e) and the subsection's introductory limits.
- Miami Beach Commission Adopts Seawall Ordinance — City of Miami Beach (January 2021). Accessed November 2, 2026.
- Broward County Florida Resiliency Standards for Flood Protection: Broward County Code of Ordinances Article XXV, Chapter 39 — Georgetown Climate Center, Adaptation Clearinghouse. Accessed November 2, 2026. Secondary summary of the county code; the county's own pages refused automated access.
- 44 CFR Part 61, Appendix A(1): Standard Flood Insurance Policy, Dwelling Form — Electronic Code of Federal Regulations (FEMA). Accessed November 2, 2026. Section IV, Property Not Insured, item 12.
Regulations, programs and conditions change. Always confirm requirements with the agency that has jurisdiction over your property.