Buying Waterfront Property With a Bulkhead: Questions to Ask

On a waterfront lot, the bulkhead or seawall is not a landscape feature. It is the structure holding the yard in place. The City of Key Colony Beach, Florida, notes in its seawall manual that a wall also often marks the legal boundary between private land and the public water beyond it, and that a well-maintained wall adds to property value.

That makes the wall one of the most important items to evaluate before you buy, and one of the easiest to overlook during a showing. This guide lists the questions to ask, the records to request and the professional help to line up. It is educational guidance, not legal, insurance or engineering advice. A real estate attorney, insurance agent and licensed engineer can advise on your specific purchase.

Start with the basics: age and material

Age and material together give a first sense of where a wall is in its life. Neither tells the whole story, because design, installation quality, exposure and upkeep all matter.

Published service-life references vary widely. New York Sea Grant states that properly designed, built and maintained timber bulkheads can provide effective protection for 10 to 20 years. Key Colony Beach notes that most seawalls in that city were designed for a 30-year life, and that many have reached or exceeded it. Our guide to how long bulkheads last covers the factors in more depth.

Ask the seller or listing agent:

1. When was the wall built, and by whom?
2. What is it made of: concrete panels, steel, vinyl or composite sheet piling, timber, or something else?
3. Is it the original wall, or has it been replaced, capped or reinforced?
4. Are there tiebacks, a wale, a deadman anchor system, batter piles or riprap at the toe?

Questions to ask the seller

Permits and records

Waterfront walls are commonly regulated at several levels. Federally, Section 10 of the Rivers and Harbors Act of 1899 lists bulkheads among the structures that cannot be built in navigable waters without authorization, and Section 404 of the Clean Water Act regulates placing fill material in waters of the United States. The U.S. Army Corps of Engineers administers these permit programs, and states and local governments often have their own requirements.

Locally, rules differ. Key Colony Beach, for example, requires a city permit for all seawall repairs, requires plans by a Florida-registered professional engineer in some cases, and inspects completed work. Whether any particular wall needed, or will need, a permit is a question for the permitting authorities, not something a buyer can assume. Our bulkhead permit guide explains the typical layers.

For a purchase, the practical steps are:

1. Ask the seller for every permit number connected to the wall, dock and shoreline.
2. Confirm them with the issuing offices, typically the local building department, the state coastal or environmental agency, and the Corps of Engineers district.
3. Ask the local government whether any open permits, code cases or seawall requirements apply to the property.

Get the wall evaluated by a qualified professional

A general home inspection may or may not include the wall in any meaningful way, so confirm the scope in writing. For the wall itself, consider separate help:

• A licensed professional engineer. Key Colony Beach advises prospective waterfront owners to have a thorough inspection of the seawall by a registered professional engineer before purchase, to bring attention to needed work before the sale closes.
• A dive inspection. The same manual notes that an underwater inspection by a diver often uncovers hidden problems. The toe and submerged joints are where many failures begin.
• A marine contractor. If repairs look likely, a contractor can describe practical options and access constraints. On developed lots, Key Colony Beach notes, work often has to be done from a barge, and docks, davits, landscaping and utilities can add to the scope.

Before your inspection, read signs of bulkhead failure so you can point out anything you noticed during a showing.

Flood zone and insurance context

Find the flood zone

FEMA flood maps show the flood risk for a property. Zones beginning with A or V are high-risk Special Flood Hazard Areas, and FloodSmart describes V and VE zones as high-risk coastal areas with an additional hazard from storm waves. In participating communities, flood insurance is mandatory for government-backed mortgages on properties in high-risk zones. FEMA estimates at least a 1 in 4 chance of flooding during a 30-year mortgage in high-risk areas.

Lower-risk zones are not risk-free. FloodSmart reports that about 1 in 3 flood insurance claims come from low- and moderate-risk zones. You can look up a property on the FEMA Flood Map Service Center or ask the local floodplain administrator.

Understand what is not covered

The standard National Flood Insurance Program policy excludes fences, retaining walls, seawalls, bulkheads, wharves, piers and docks. The Maryland Insurance Administration also notes that standard homeowners policies commonly exclude flood, storm surge and rising water, and suggests asking whether limited or specialty coverage is available for waterfront structures. In practice, a buyer should plan as though the cost of repairing or replacing the wall falls on the owner.

Consider the long view

NOAA projects 10 to 12 inches of sea-level rise along U.S. coastlines by 2050, with moderate flooding expected to occur more than 10 times as often as today. Higher water means more frequent overtopping of low walls and may influence the required height of a future replacement. Ask the local government whether it has adopted seawall elevation or maintenance standards that would apply when the wall is next rebuilt.

HOA, canal district and shared responsibilities

Responsibility for a wall is not always obvious. Before closing, find out:

• Who owns and maintains the wall? Depending on the community, it may be the individual lot owner, an association, a special district or a local government. Read the deed, plat, HOA covenants and any district rules, and ask the association or local government directly.
• Are there assessments? Ask whether an association or district has planned or pending assessments for wall repair, canal dredging or shoreline work.
• How do the ends connect? A wall that ties into neighbors' walls depends on them. Key Colony Beach notes that a sagging neighboring seawall can damage yours, and the Corps of Engineers' property owner's guide explains that erosion around exposed wall ends can undermine a structure. Look at the walls on both sides.
• Are there shared agreements? Ask about any written agreements with neighbors covering a continuous wall, a shared return or joint repairs.

Building it into your decision

The wall's condition can reasonably affect your offer, your inspection contingency and your budget. Practical steps:

1. Allow time. Engineers and dive inspectors may need lead time, so build it into the contingency period.
2. Get a range, not a guess. If repairs are likely, ask a contractor for a scope and a written estimate. Our guide to replacement cost per linear foot explains how pricing is typically expressed.
3. Talk to your attorney. Disclosure rules, contract terms and remedies vary by state.

If you are comparing properties or preparing to talk with contractors, the project brief tool helps you organize the wall's details, records and open questions in one place.