Your House Is Suddenly in a Flood Zone

A letter arrives saying your house is now in a Special Flood Hazard Area. Nothing about the house has changed. The map changed. And a buyer who was going to borrow to buy it has just acquired a new annual cost that may decide whether they can still afford your asking price.

This article covers what a flood zone designation actually triggers, the FEMA process for getting a house taken back out of one, the limit of that process that most articles leave out, and what all of it does to a sale.

What the designation actually means

A Special Flood Hazard Area, in FEMA's definition, is land with a one per cent or greater chance of flooding in any given year. That is the event usually called the base flood, and sometimes loosely called the hundred year flood, which is a badly misleading name for something with a one in a hundred chance every single year.

Being in one does not mean the house has flooded or will. It means the map says the property sits in that band.

What it triggers is financial. Flood damage is not covered by a standard homeowners policy anywhere, and where a property in an SFHA is bought with federally backed financing, flood insurance becomes a condition of the loan. So the designation lands on the buyer as an annual cost for the life of the mortgage.

The house did not change. The cost of owning it did, and the buyer is the one paying.

Getting the house taken back out

FEMA maps are drawn at scale across whole communities, and properties sitting on naturally high ground get swept into an SFHA that they do not physically belong in. FEMA calls these inadvertent inclusions and has a process for correcting them.

A Letter of Map Amendment, a LOMA, is FEMA's official statement that an existing structure or parcel on naturally high ground, not raised by fill, would not be inundated by the base flood. Where earthen fill was used to raise the ground, the equivalent is a Letter of Map Revision Based on Fill, a LOMR-F.

The evidence is elevation. Federal regulation provides that FEMA will issue a LOMA where the applicant submits data including a certification by a Registered Professional Engineer or Licensed Land Surveyor that the lowest adjacent grade of the structure is at or above the Base Flood Elevation. That certification comes on an Elevation Certificate, which is the document to obtain first.

Requests can be submitted to FEMA online, and where a qualified professional submits an eLOMA a determination can come back very quickly. A LOMA, once issued, is a public record the community must maintain, which means it does not evaporate when you sell.

Note what it does and does not cover. FEMA will issue determinations for a whole parcel or for the structure alone. A determination on the structure succeeds more often, because a house usually sits higher than the ground around it.

The limit nobody mentions

Here is the sentence that changes how you should plan, and it comes from FEMA's own guidance.

Issuing a LOMA or LOMR-F eliminates the federal flood insurance purchase requirement as a condition of federal or federally backed financing. However, the lender retains the prerogative to require flood insurance as a condition of providing financing, regardless of where the structure is located.

So a LOMA removes the legal obligation and does not bind your buyer's bank. Most lenders will drop the requirement on a LOMA. Some will not. If you are relying on a LOMA to make a sale work, it is worth the buyer asking their lender directly rather than everybody assuming.

FEMA is equally clear on the other side of it: a LOMA does not mean the structure is safe from flooding, only that the risk is not as high as inside the SFHA. Events larger than the one per cent event happen. And FEMA states that more than a quarter of flood claims come from property owners outside the SFHA, which is worth knowing before anybody treats a LOMA as proof that cover is unnecessary.

What it does to a sale

It is an affordability problem before it is anything else. A buyer qualifying at the edge of their budget now has a further annual premium counted against them. Deals fall over on this rather than on anybody's feelings about flooding.

Get the paperwork in front of buyers early. An Elevation Certificate, a LOMA if you have one, and the actual current premium quoted for the property answer the question that otherwise turns into a negotiation. A real number beats an imagined one, and buyers imagine badly.

Disclose flooding, not just the map. A designation is public information. Whether this house has ever taken water is not, and it belongs on the disclosure form. Our article on Oklahoma seller disclosure requirements covers the position.

Cash removes the trigger entirely. The purchase requirement attaches to federally backed financing. A buyer who is not borrowing is not required to carry it, which is why these properties frequently end up selling for cash even when nothing is wrong with them.

Where we come in

If the house is on high ground, get the LOMA and sell it normally. An Elevation Certificate and a survey cost a fraction of what a discounted sale costs, and a house removed from the SFHA sells to ordinary financed buyers at ordinary prices. That is the right answer for most people who land on this page and we would rather you did it than call us.

If the house genuinely sits low, price it with the premium in the open. A real quote in the listing beats a buyer discovering it at underwriting and withdrawing.

The narrow case where a cash sale earns its place: the property has actually flooded and needs work, the premium makes it unsellable to the buyers who can afford it, or you are out of time to run a map amendment that takes weeks. We buy without a lender, so the purchase requirement never enters the transaction. Our page on we buy houses in Tulsa covers how that works, and our article on insuring an empty house is worth reading if it is standing empty meanwhile.

The short version

• A Special Flood Hazard Area is land with a one per cent or greater chance of flooding in any given year. Being in one does not mean the house has flooded
• Flood damage is not covered by a standard homeowners policy, and inside an SFHA cover becomes a condition of federally backed financing
• A Letter of Map Amendment is FEMA's statement that a structure or parcel on naturally high ground would not be inundated by the base flood. A LOMR-F is the version where fill was used
• The evidence is an Elevation Certificate from a Registered Professional Engineer or Licensed Land Surveyor
• A LOMA removes the federal requirement but the lender may still require cover anyway. Have the buyer ask their bank
• FEMA states that more than a quarter of flood claims come from outside the SFHA
• Get the certificate, the letter and a real premium quote in front of buyers early. A real number beats an imagined one