Questions to Ask When Buying Waterfront Property in South Florida

August 4, 2026 · 9 min read · By Onias Derilus, Broker

Flood zone, seawall, dock permit, bridge schedule. The questions to ask when buying waterfront property in South Florida are not the ones on a standard checklist.

The questions to ask when buying waterfront property have almost nothing to do with the view. In South Florida the view is the easy part. What separates a good waterfront purchase from an expensive one is a short list of regulatory facts that are all public, all knowable before closing, and all routinely skipped.

Key Takeaways

Flood insurance is mandatory in high risk zones A and V when the mortgage is federally backed.

NFIP residential coverage caps at $250,000 for the building and $100,000 for contents, which is often far below a waterfront home's replacement cost.

You own the upland to the mean high water line. Florida owns the submerged land beyond it, and your use of it is a permit or lease, not ownership.

Broward County requires owners to maintain a tidal flood barrier and requires the obligation to be disclosed in the real estate contract.

Drawbridge opening schedules on the Intracoastal are federal regulation, and they decide whether your boat leaves on demand or on the half hour.

What flood zone is this, and what does that actually cost?

Start at FEMA's Flood Map Service Center, which lets you search a specific address and pull the current effective flood map. Zones A, AE, AH, AO, AR, and A99 make up the Special Flood Hazard Area, the zone with a one percent annual chance of flooding. Zone VE is the coastal high hazard area, where wave action of three feet or more is expected and construction standards tighten considerably. Zone X covers moderate and minimal hazard areas.

If the home sits in an A or V zone and your mortgage is federally backed, flood insurance is not optional. Understand the ceiling before you budget: an NFIP residential policy covers the building up to $250,000 and contents up to $100,000. On a waterfront home worth several times that, you are looking at excess flood coverage on top, which is a separate conversation with a separate premium.

Pricing changed fundamentally under Risk Rating 2.0. FEMA now rates each individual building rather than applying a blanket zone rate, weighing flood frequency, flood type, distance to the water, rebuild cost, and First Floor Height. Most annual increases are capped at 18 percent and stop once the full risk rate is reached.

Where is the elevation certificate?

An elevation certificate documents how high the building sits relative to expected flood levels, which is what establishes First Floor Height. Most homeowners do not need one to buy a policy, but owners in A and V zones often do, and it is the cleanest way to confirm the property meets local standards. If the community has no certificate on file, someone has to hire a surveyor, engineer, or architect to produce one. Ask who is paying for that before it becomes a closing surprise.

Who owns the water, and the land under it?

This is the question that catches the most buyers. Under Florida law, riparian rights are those incident to land bordering navigable water: ingress, egress, boating, bathing, and fishing. They attach only if your title runs to the ordinary high watermark, and they travel with the land whether or not the deed mentions them.

What you do not get is the bottom. The Florida Constitution holds title to land under navigable waters, including beaches below the mean high water line, in trust for all the people. So the water in front of your home is state owned sovereignty submerged land, and your right to put a dock on it is an authorization or lease from the state, separate from any construction permit. Confirm that authorization exists and transfers.

Is the seawall the seller's problem or about to be yours?

In Broward County the answer is unambiguous. Property owners must maintain a tidal flood barrier in good repair, and a barrier is presumed to be in disrepair if it lets tidal water flow through or over it onto adjacent property or public right of way. The county standard is a minimum elevation of five feet NAVD88, with a transitional allowance for applications before January 1, 2035 that are designed to reach five feet by 2050. Fort Lauderdale moved its own standard to five feet NAVD as well.

Broward also requires real estate contracts on tidally influenced property to disclose that the owner may be required to meet minimum tidal flood barrier elevation standards. Read that disclosure rather than initialing past it, then have the wall inspected by someone who does marine structures for a living.

Is the dock permitted, and can your boat get out?

Florida DEP regulates activities in, on, or over surface waters through the Environmental Resource Permit program. Private docks of 1,000 square feet or less of over water surface area are exempt from that permitting under state statute when the work meets water quality, navigation, and flood control conditions. Federally, Section 10 of the Rivers and Harbors Act of 1899 makes it unlawful to build a wharf, pier, or bulkhead in navigable waters without authorization, though the Army Corps and DEP run a joint programmatic permit that covers docks, shoreline stabilization, and boat ramps to avoid duplicate review.

Then there is the part no permit tells you. Drawbridge operations on the Intracoastal are set in federal regulation. The Royal Park bridge in Palm Beach opens on the hour and half hour. Flagler Memorial and Southern Boulevard open on the quarter and three quarter hours, and Southern Boulevard can close without notice for dignitary transit. In Broward, East Las Olas opens on the quarter and three quarter hours. For fixed bridge clearance, do not trust a number from a forum. Check NOAA's Coast Pilot or ask a marine surveyor with your specific mast or tower height in hand.

What will windstorm coverage look like?

Citizens Property Insurance is Florida's insurer of last resort, and a buyer is only eligible if comparable private market coverage costs at least 20 percent more. Its exposure data tells you something useful about coastal risk pricing: as of April 30, 2026, wind only policies were about 21 percent of Citizens' policy count but roughly 33 percent of its total exposure. Wind only is precisely the product barrier island and coastal buyers end up shopping. Get a real quote during your inspection period, not an estimate.

Is any of it seaward of the coastal construction control line?

Florida DEP's Coastal Construction Control Line regulates structures and activities that can cause beach erosion, destabilize dunes, or interfere with public access. One common misconception is worth correcting: the CCCL is not a setback beyond which you cannot build. It is a jurisdictional line, and construction or excavation seaward of it generally requires a DEP permit with special siting and design criteria. DEP publishes a locator tool for finding the line on a specific parcel, along with an annually updated inventory of critically eroded beaches.

DEP also publishes an annually updated inventory of critically eroded beaches, which identifies the shoreline segments the state considers to be actively losing sand. If the property fronts one of those segments, ask what the local beach renourishment schedule looks like and who funds it, because that program is what stands between the dune and the foundation over a twenty year hold.

If you are earlier in the process and still deciding what kind of water you want, our guide to buying a dream beach house covers the lifestyle side of the same decision. To see what is available now, browse waterfront homes and beachfront homes across our service area.

Frequently asked questions

Do I have to buy flood insurance on a waterfront home?

If the property is in a high risk zone A or V and your mortgage is federally backed, yes. Outside those zones it is not federally mandated, though lenders and prudence often push the same direction.

Does an elevation certificate lower my premium?

Not directly. The certificate documents First Floor Height, and First Floor Height is one of the variables FEMA rates on under Risk Rating 2.0. Treat it as the evidence, not the discount.

Do I own the water behind my house?

No. Your ownership runs to the ordinary high watermark. The submerged land beyond it is held by the state in trust, and dock use requires state authorization.

Who permits a new dock or seawall in South Florida?

Usually a combination: the local municipality, Florida DEP for environmental resource permitting and submerged land use, and the U.S. Army Corps of Engineers for work in navigable waters, often handled through the joint state programmatic permit.

Looking at waterfront in Palm Beach, Broward, or the Treasure Coast? We order the flood zone, the seawall condition, and the dock authorization during the inspection period, before your deposit goes hard. Contact Pure Equity and we will build the checklist around the specific property.

Sources

Flood zones, insurance rules, local seawall ordinances, and permitting requirements change and vary by municipality. Verify current requirements with FEMA, Florida DEP, your county, and a licensed insurance agent. This article is general information, not legal, engineering, or insurance advice.