What might a new seawall cost?
Start with your wall length. This illustration uses a published South Florida concrete-replacement range of $800–$1,400 per linear foot. You can adjust both rates to match your own proposals.
Look up a City address (optional)
Find your address in the City seawall map.
Check the mapped address and folio, then confirm your seawall length below. You can skip lookup and enter the length yourself.
View official City aerial mapAerial imagery opens on ArcGIS with its own attribution and terms. It is not a current property-condition photo. Source: City of Miami Beach seawall map
Use the length of wall along the waterfront from your records or known dimensions. Backyard square footage and the parcel's full perimeter are different measurements.
Adjust rates and excluded costs
Scope, price source and grant assumptions
Add design, survey, permits, demolition, disposal, barge access, anchoring, drainage, backfill, restoration and contingency only when excluded from the rates. Count each cost once. Site conditions can put a project outside this range.
The starting rates are one contractor's advertised 2026 concrete-replacement range for Palm Beach and Broward projects, not a measured Miami Beach market range or a property quote. JKT Marine published range Source checked October 24, 2026. Listing is a pricing reference, not a partner recommendation.
This is a planning estimate before any grant. City assistance depends on eligibility, approved costs and available funding, with reimbursement after completion.
What a 2025 City review tells us about cost
Staff material accompanying Ordinance 2025-4754 reports a review of costs declared on private-property seawall permits: approximately $294–$1,400 per linear foot, averaging about $831. The work mixed cap overpours with full wall replacement and associated components. These are historical permit-reported figures, not current quotes, verified final payments, or a replacement-only benchmark. The passage does not provide a sample count or a uniform scope. Use it to understand why scope matters, not as a default calculator rate.
- 2025 City staff review of permit-reported seawall costs, PDF page 11Reviewed October 24, 2026
Make proposals comparable
- Ask each bidder to price the same written scope and identify assumptions.
- Separate engineering, survey, permits, wall work, demolition, and restoration.
- Identify allowances, exclusions, change-order triggers, and payment milestones.
- Confirm whether dock removal, utilities, landscaping, or barge access are included.
Refine the range with written proposals
The estimator starts with a published regional concrete-replacement illustration. Replace the rates with comparable contractor proposals as your design, access and permit scope become clearer.
Ask about coverage before relying on reimbursement
NFIP generally excludes standalone seawalls. Private coverage and foundation-support circumstances require policy-specific review. Ask your insurer about your exact structure, exclusions, and cause of loss; do not build an assumed payout or premium reduction into the budget.
- FEMA NFIP excluded property guidanceReviewed October 24, 2026
- Florida OIR flood insurance guidanceReviewed October 24, 2026
- FEMA NFIP Claims Manual, June 2025, coverage page 22 (PDF)Reviewed October 24, 2026
Planning information only, not an inspection, engineering or legal advice, compliance determination, or quote. Confirm project requirements with the City and qualified professionals.