A flood policy from the National Flood Insurance Program will pay a maximum of $250,000 to rebuild your house. That number is not a limit your agent chose. It is written into the program, it applies to every single-family home in Fort Lauderdale and Weston and Miami Lakes alike, and it has not moved in decades.
Water does not stop at $250,000. If a storm surge fills your first floor and the repair bill comes to $390,000, the NFIP check covers $250,000 of it and you fund the remaining $140,000 yourself. Excess flood insurance is the policy that sits on top of the federal one and pays that second layer.
Excess flood insurance is a private policy that pays only after an underlying flood policy has paid its full limit. It does not replace your NFIP coverage. It extends the ceiling above it, usually to $1 million or more, and it is authorized in Florida by Florida Statute § 627.715.
Where the $250,000 Cap Actually Bites in Broward County
The NFIP sets its maximums by building type, and they have been the same for years.
| Building type | Maximum building coverage | Maximum contents coverage |
|---|---|---|
| Single-family and 1-4 family residential | $250,000 | $100,000 |
| Residential condominium building (RCBAP, bought by the association) | Lesser of replacement cost or $250,000 x number of units | $100,000 for commonly owned contents |
| Condo unit owner (dwelling form) | $250,000 | $100,000 |
| Non-residential and commercial | $500,000 | $500,000 |
Now put a South Florida price against that. Florida Realtors data for August 2026 puts the median single-family sale price at $650,000 in Broward County and $680,000 in Miami-Dade. Those are market prices, and flood insurance does not pay market price, so do not panic at the gap between $650,000 and $250,000. What matters is replacement cost: the cost of rebuilding the structure, with the land excluded.
That correction shrinks the gap but rarely closes it. Land is a large share of the price in Broward, so a $650,000 house might carry a replacement cost somewhere around $350,000 to $450,000 depending on square footage, finishes and impact-window upgrades. Even at the low end of that range, the NFIP covers roughly two-thirds of the structure and stops. The exact figure is on your homeowners declarations page under Coverage A. Read it before you decide whether this matters to you, because that single number is the whole question.
The fastest way to know if you have a gap: find Coverage A on your homeowners policy. If it reads higher than $250,000, that difference is your uninsured flood exposure, and no amount of NFIP coverage will close it.
What Excess Flood Covers That the Federal Policy Never Will
Height is the obvious reason to buy the layer. It is not the only one. The NFIP Standard Flood Insurance Policy has gaps that have nothing to do with the dollar limit, and a private excess form can often fill several of them at once.
- Additional living expenses. The NFIP pays nothing toward a hotel, a rental or meals while your house is being dried out and rebuilt. Not a reduced amount, nothing. Most private excess forms can add loss of use, and in a South Florida rebuild that runs months, this is often worth more than the extra building limit.
- Contents above $100,000. The federal contents cap is separate from the building cap and just as fixed. Furnish a four-bedroom house in Weston and you will pass it.
- Replacement cost on contents. NFIP contents claims are settled at actual cash value, so a seven-year-old sofa is paid at seven-year-old value. Private forms commonly offer replacement cost instead.
- Detached structures, pool equipment and hardscape. NFIP coverage for detached garages is limited to 10 percent of the building limit, and pool cages, decks and outdoor kitchens are largely excluded. Excess and private forms vary here, so read the specific form rather than assuming.
- Basements and below-grade space. Rare in South Florida, but the NFIP exclusions for finished below-grade areas are aggressive, and they also reach some ground-level enclosures under elevated houses in VE zones.
One federal coverage does not need duplicating upward. Increased Cost of Compliance pays up to $30,000 toward elevating, demolishing or floodproofing a substantially damaged building to meet your city's floodplain ordinance. It is part of the NFIP policy and it sits outside the $250,000 building limit, so it is not something an excess layer needs to duplicate.
Three Ways to Cover the Value Above the Cap
Excess flood is one of three routes, and it is not automatically the cheapest. Which one wins depends on your flood zone, your elevation and how your NFIP policy is currently rated.
| Approach | How it works | Best when |
|---|---|---|
| NFIP at max limits plus an excess layer | Keep the federal policy at $250,000 building and $100,000 contents. A private excess policy attaches above it, typically to $1 million or more. | Your NFIP rate is favorable, you are grandfathered on an older rating, or a lender specifically wants NFIP as the primary. |
| Private primary flood at full limits | Replace the NFIP policy outright with a private one written to your full replacement cost. One policy, one deductible, one claim. | You want broader coverage in a single contract, or private pricing beats the NFIP rate for your property. |
| NFIP only, and accept the gap | Carry the federal policy and self-fund anything above $250,000. | Your replacement cost is genuinely at or under the cap, or the structure is small relative to the land value. |
Option two has a catch Florida writes into the statute. Under § 627.715(8), when an agent moves you off an NFIP policy that was being written at subsidized rates, you have to sign a written notice acknowledging that you may not be able to get that subsidized federal rate back. Read that notice properly rather than signing past it. Going private is often the right call, but it can be a one-way door on pricing.
If you are weighing the federal and private markets against each other more broadly, our comparison of FEMA and private flood insurance works through the pricing and claims differences in detail, and our South Florida flood insurance page covers how we place both. This page is about the layer above, not the choice between the two.
What Excess Flood Insurance Costs in South Florida
Premiums vary too much by property for a single number to be honest. What you can rely on is the shape of the pricing, which is not intuitive.
The first band of excess coverage, roughly the $250,000 to $500,000 layer sitting directly on top of the NFIP limit, is the most expensive part per dollar. It is closest to the ground, so it is the part most likely to be reached. Coverage higher up the tower is progressively cheaper, because a flood deep enough to spend $800,000 on one Plantation house is far rarer than one that spends $300,000. A homeowner who is already buying the expensive first band should price the next band too, since the marginal cost of going from $500,000 to $1 million is usually modest.
Four things move your number more than anything else: your flood zone, your lowest floor elevation relative to Base Flood Elevation, distance to the coast or a canal, and the deductible you take on the underlying policy. In an AE or VE zone in Fort Lauderdale or Hollywood, an elevation certificate is usually worth the roughly $600 it costs, because elevation is what the rating actually turns on under Risk Rating 2.0.
Waiting periods differ, and this catches people every June. The NFIP imposes a 30-day wait before coverage starts, with narrow exceptions for loan closings and certain map changes. Private and excess flood policies typically wait 0 to 14 days. Neither will help you once a named storm is in the forecast cone, so buy in the spring, not in the week the models line up.
The Citizens Flood Mandate Makes This Urgent for More People
Florida is steadily converting flood insurance from optional to required for one large group of homeowners. Citizens Property Insurance now requires flood coverage on personal residential policies that include wind, phased in by the dwelling limit on the policy.
- January 1, 2024: properties with dwelling coverage of $600,000 or more
- January 1, 2025: $500,000 or more
- January 1, 2026: $400,000 or more
- January 1, 2027: every remaining Citizens personal residential policy with wind coverage
Citizens is blunt about the consequence. In its own words, if you do not wish to buy flood insurance you will not be eligible for a personal lines residential policy with Citizens. Policies without wind coverage and condominium unit-owner policies sit outside the requirement.
Here is why that matters for this topic specifically. The mandate is satisfied by having a flood policy. It says nothing about the policy being adequate. A Sunrise homeowner with $450,000 of dwelling coverage on a Citizens policy meets the January 2026 requirement with a $250,000 NFIP policy, while carrying $200,000 of structure that no flood policy will pay for. Compliance and coverage are two different tests, and only one of them is being checked at renewal.
How to Buy the Layer Without Leaving a Hole in the Middle
An excess policy pays only after the underlying policy pays its limit. That structure is efficient and it is also unforgiving, because any mismatch between the two contracts becomes a gap you discover during a claim.
- Keep the underlying NFIP policy at its full $250,000 and $100,000. Reducing it to save premium does not shift the shortfall to the excess carrier; it usually opens a layer nobody insures.
- Match the perils and the property. If the excess form defines flood or covers detached structures differently from the SFIP, ask for the difference in writing before you bind.
- Confirm contents and loss of use are actually included. They are frequently optional on excess forms, and loss of use is the coverage most worth having.
- Check the coinsurance clause if you own a condominium and the association carries an RCBAP. RCBAP policies carry an 80 percent coinsurance requirement, so a building underinsured against replacement cost will see unit claims reduced, and that reduction lands on owners as a special assessment.
- Tell the excess carrier the moment your NFIP policy changes. A new deductible or a rewritten policy can break the attachment point.
- Review the limit against replacement cost every few years. Broward rebuild costs have moved considerably since 2020, and a limit set five years ago is likely short now.
If you are not sure whether you need the layer at all, start with the flood zone. Our guide to Florida flood zones covers how to look yours up, and roughly a quarter of NFIP claims nationally come from properties outside high-risk zones, which is the statistic most Zone X homeowners in Broward have never heard.
The check worth running today takes two minutes. Find Coverage A on your homeowners policy, subtract $250,000, and look at what is left. That figure is what you are currently insuring yourself for against flood. Most South Florida homeowners have never done the subtraction, which is exactly why the excess market exists.