Saltwater or freshwater?
Cape Coral has both saltwater canals, with access to the river and Gulf, and freshwater canals. It matters for permits: seawall work on a saltwater canal needs Florida DEP approval or the Army Corps' SAJ-91 permit as well as the city permit. Freshwater canals don't. It also decides what you can keep at your dock, since boats on freshwater canals can't reach open water.
The city seawall permit
- Who can apply: a certified general, building or residential contractor, a marine contractor, or the owner as owner-builder.
- Plans: the city's Engineering Design Standards, or signed and sealed engineered plans.
- Inspections: slab; cap, alignment and tieback; then final. A turbidity screen must enclose the work.
- Notice of Commencement for jobs worth $2,500 or more. The guideline (June 2020) lists a $110.25 fee and a six-month permit.
The guideline also asks for a burrowing owl and gopher tortoise affidavit. Cape Coral is known for its burrowing owls, which are protected, so nests near the work matter. Full details are on Lee County permits.
Alternative seawalls on freshwater canals
On freshwater canals, the city allows a stabilized sloped bank instead of a vertical wall, within strict limits: 4:1 and 3:1 slopes, at least 15 ft of slope, and engineer-sealed plans. See alternative seawalls in Cape Coral.
Docks and lifts
Docks and boat lifts need their own city permit and inspection. Local reporting found the city doesn't measure canal depth before issuing a permit, so check the depth at low tide before you choose a lift or a boat. See docks and boat lifts, boat lift installation and boat lift repair.
Costs
A Cape Coral contractor publishes $35–180 per linear foot for targeted seawall repairs and $850–2,200 per foot for replacement. Statewide guides put replacement at around $500–1,200 per foot. See seawall repair in Lee County and the cost guide.
Getting a quote
Use the form below. We'll pass your request to one licensed, insured contractor who works in Cape Coral. Free for homeowners, with no obligation.
This page summarizes published rules and prices for general information. It isn't engineering or legal advice, and codes change. Your contractor, engineer and building department have the final word for your property.
Common questions
Is a seawall permit different on a freshwater canal in Cape Coral?
Yes, in one respect. The city's residential seawall guideline asks for Florida DEP approval or the Army Corps' SAJ-91 permit for seawall work, except on freshwater canals. The city permit, plans and inspections apply either way.
Can I build my own seawall in Cape Coral?
The city's guideline lets owner-builders apply, with an owner-builder affidavit, but that makes you responsible for the work, the supervision and the inspections. Most owners hire a licensed marine or general contractor.