The verified city fees are a separate budget item
Resolution 26-26, effective June 1, 2026, lists installation, repair or replacement at $4.50 per linear foot, minimum $189. Plan review adds 38% of the permit fee. An 80-foot example is $360 plus $136.80, or $496.80 before other charges.
The city’s linked Form 31 still displays older rates. Use our source comparison and fee examples and ask the city for the assessed invoice. Do not apply these city figures to an unincorporated county parcel.
Signed Resolution 26-26: building permit fees · City seawall permit application — Form 31
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What this check is based on
The questions cover signs shown in the City of Holmes Beach seawall manual (pages 5–13): soil loss, wall movement, open joints and damaged concrete.
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What could your seawall cost?
Published regional starting prices. Get a written quote for the work at your property.
An 80-foot wall with restricted barge access and an existing lift is a different job from an open lot of the same length. Compare the work and access assumptions before comparing price per foot.
Repair prices by type
These are two different anchor-work examples. They do not price every repair, and they must not be added together or added automatically to a replacement quote.
| Work | Amount | What the price covers | Area and source |
|---|---|---|---|
Supplementary anchors | $225–$300 | per foot of wall; Adding secondary anchors to an existing wall; not a price for cap, panel or drainage repairs. | Florida (Naples contractor) [1] |
Full deadman and anchor system | $600–$900 | per foot of wall; Full deadman tie-back and anchor system; not a complete wall replacement price. | Florida (Naples contractor) [1] |
New-wall prices per foot
The calculator uses a published $400–$900 per foot construction range. This is one contractor’s Southwest Florida estimate, with no separate rate for each material.
| Material / work | Price per foot of wall | Area, included work and source |
|---|---|---|
New or replacement seawall | $400–$900 | Southwest Florida · General Southwest Florida construction range; no separate material prices or itemized inclusions. [1] |
50-, 75- and 100-foot examples
Multiply the wall length by the price per foot. Construction rate multiplied by wall length. These are starting examples, not complete project quotes; check what is included.
| Material / work | 50 feet | 75 feet | 100 feet |
|---|---|---|---|
New or replacement seawall | $20,000–$45,000 | $30,000–$67,500 | $40,000–$90,000 |
For example: 75 ft × $400–$900/ft = $30,000–$67,500. The same regional rate is used for each length. Property-specific work can change the price.
What to include in your price
Ask for a written list of what the price covers. Include the related work below when planning your total budget.
- Engineering investigation, water-side access, surveyed cap elevation and actual wall length.
- Demolition, disposal, new wall system, tiebacks, cap, backfill and approved drainage.
- Barge mobilization, bridge route, upland staging permission and restoration of landscaping.
- Separate dock, lift, electrical or plumbing work and temporary utility arrangements.
- Local and environmental approvals, inspections, engineer certification and completion survey.
- Written exclusions, unit prices for concealed conditions and owner authorization for changes.
Ask what the mobilization allowance assumes
A proposal that assumes upland equipment access cannot be compared directly with one that includes a work barge, bridge routing and neighboring-lot staging. List the assumed route and permissions beside each price.
Include the underwater investigation, designer, separate dock work and final survey when they are outside the construction line item. A blank allowance is an unresolved cost, not a zero.
What do fixed prices, allowances and exclusions mean?
Ask each bidder to label every cost in the same way. The contract controls the meaning; these questions help reveal which amounts are firm and which still depend on site findings.
- Fixed scope
- Which drawings, quantities and work limits support this amount? A fixed price for cap work is not a fixed price for the whole wall.
- Allowance
- What quantity or condition does the allowance assume? Ask for the rate and approval process if the actual work exceeds it, and how an unused amount is handled.
- Unit price
- What is the unit: wall length, area, anchor or material quantity? Define how it will be measured and whether mobilization is a separate charge.
- Exclusion
- Who will supply and pay for the omitted item? Put a named owner and an estimated or quoted amount beside it before comparing totals.
How do you turn a quote into a usable budget?
Make one scope sheet
Record the same waterfront length, wall ends, proposed work and access assumptions for every bidder. Keep existing-wall repairs separate from new construction so a shorter scope does not appear to be a cheaper equivalent.
Add the work outside the wall price
Obtain separate figures for the survey, engineer, agency charges, dock or lift changes, utilities and restoration when excluded. Count an item only once if a contractor already includes it.
Price the uncertainty
List concealed anchors, underwater conditions, access permissions and other unresolved items. Ask the designer and contractor which can be investigated now and which need a written allowance. Choose a contingency based on these risks, not an invented local percentage.
City seawall permit application — Form 31 · Marco Island Seawall Owner’s Manual (April 2014)
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How to use these prices
One contractor’s published planning range, not a Marco Island market average or a quote. The source does not itemize inclusions, wall height or material-specific rates. Confirm removal, engineering, permits, access, dock work and restoration in a written proposal. Prices checked October 29, 2026. The source discusses concrete and vinyl but does not publish a numerical breakdown by material. Material choices therefore do not change the general range. Repair examples use their own anchor-work rates. City permit charges come from Resolution 26-26 and are never used as construction prices.
Price and technical sources
- Kalvin & Calvin Marine Construction. Seawall Construction in Naples, FL. Southwest Florida / Florida. Source reviewed 2026-10-29
- Signed Resolution 26-26: building permit feesSource reviewed 2026-10-25
- City seawall permit application — Form 31Source reviewed 2026-10-25
- Marco Island Seawall Owner’s Manual (April 2014)Source reviewed 2026-10-25