Floodplains and Affordability for First-Time Homebuyers

5/14/26 – Homes in floodplains typically sell at discounts compared to safer homes on higher ground. Therefore, they tend to attract a higher proportion of first-time home buyers. Why? For the vast majority of first-time buyers, affordability drives buying decisions more than other considerations, especially since flood risk is hard to understand.

Let’s look at some recent studies and start with the most affordable markets for first-time buyers.

Zillow Rankings of Market Affordability

In February 2026, a Zillow study identified large U.S. metro areas where buying a home is an affordable alternative to renting.

The study ranked the country’s 50 largest metropolitan areas based on their proportions of:

Income spent on rent (the rent burden: less spent means greater ability to save for down payment)
Affordable listings for median-income households (more supply drives down prices)
Affordable listings per 100 rental households (more choices mean greater bargaining power)
Share of population between 29 and 43 (prime ages for first-time buyers).

Based on those criteria…

Houston ranked fifth in the country.
Zillow study

In Houston, first-time homebuyers spend only 23% of their income on rent. And 40% of the City’s housing stock is within the price range of median-income households. So, Houston is one of the most affordable markets for first-time homebuyers.

Flooding Connection?

But are first-time homebuyers really more likely to buy homes in floodplains?” Research is illuminating. Short answer – “Yes. But not always.” It depends on where you look.

Inland vs. Coastal Floodplains

Less wealthy first-time buyers are often disproportionately represented in inland flood-prone areas. Why? Land is cheaper there and affordability drives decision making.

However, the pattern differs in coastal flood zones. Flooded coastal homes still command premiums because of their views, proximity to beaches, water access and recreational value.

CFPB and Freddie Mac Research

A 2025 Consumer Financial Protection Bureau report found that mortgage applicants in inland FEMA flood zones generally had:

Lower incomes
Lower credit scores
Smaller down payments
Less ability to self-insure.

“Approved mortgage applicants in inland flood zones have lower credit scores and income than approved mortgage applicants for properties in minimal flood risk areas,” says the report.

Freddie Mac studied Houston and Harris County home prices before and after Harvey. Freddie Mac found that floodplain properties sell at a discount and that, after flooding, that discount doubled.

*Screen capture from “Unravelling Perceptions of Flood Risk: Examining Changes in Home Prices in Harris County, Texas in the Aftermath of Hurricane Harvey.”* *by Freddie Mac.*

Lower prices naturally attract more cost-sensitive buyers, including many first-time buyers.

Other studies suggest younger buyers and buyers with less flood experience DO NOT give as much weight to flood risk as older, more experienced buyers. One 2025 housing-market study found younger buyers in flood-prone regions often did not demand meaningful price discounts for risk exposure, while older buyers did.

Compared to safer homes on higher ground, inland floodplains typically feature:

Cheaper land
Newer suburban growth
Fringe development areas
Weaker zoning or drainage standards
Higher proportions of entry-level housing.

This pattern is especially visible around rapidly growing metro areas such as Houston. Here, developable non-floodplain land near employment centers is increasingly scarce and expensive.

A recent Houston Chronicle investigation found 65,000 homes built in mapped floodplains across the Houston region since Harvey, partly because flood-prone land has higher profit margins.

Why First-time Buyers are Particularly Vulnerable

Several factors converge in the “first-time” market:

Lower purchase price dominates decision-making
Buyers may underestimate flood probability
Insurance costs are poorly understood
FEMA maps can understate actual risk
Mortgage qualification focuses on payment affordability more than flood-risk; lenders simply require flood insurance.

There is also evidence that many buyers misunderstand flood insurance. Surveys show a substantial share of Americans incorrectly believe homeowners insurance covers flood damage.

In Houston Region

These dynamics can become especially pronounced because:

Floodplain land is often among the last large tracts available near growth corridors
Drainage rules vary by jurisdiction; some keep standards low to attract growth
First-time buyers may not have experienced prior floods
Many buyers speak English as a second language, as in Colony Ridge
Rapidly changing hydrology can outpace FEMA map updates.

That creates a situation where entry-level subdivisions may be marketed as “compliant” with current regulations while still carrying substantial, unrecognized flood risk.

A Personal Testament

I once fell into that exact trap when I was much younger. I bought a house on Spring Creek in the Dallas area. The developer promised me, “You’re two feet above the 100-year floodplain.” That sounded safe. Plus, the view was gorgeous and the bank was willing to loan us the money. We bought it.

But within three years, we flooded. I worked with the City Engineer and Army Corps to re-evaluate flooding on the creek. They found that because of upstream development in those three years, we went from two feet above the 100-year floodplain to 10 feet below it.

We sold the house at a $60,000 loss and moved on. In today’s dollars, that would equal $200,000.

Somewhere along the way, I learned that “Built to code” does not necessarily mean “low flood risk.” In many jurisdictions, it simply means the structure meets the minimum regulatory elevation or mitigation standard tied to existing maps and assumptions which could be decades old.

Most first time buyers don’t realize that flood risk can change faster than flood maps. Much faster. They also don’t realize that the chances of getting flooded in a 100-year floodplain during the lifespan of a 30-year mortgage is 26% – a more than one in four chance.

Buyers beware.

Posted by Bob Rehak on 5/14/26

3180 Days since Hurricane Harvey

The thoughts expressed in this post represent opinions on matters of public concern and safety. They are protected by the First Amendment of the US Constitution and the Anti-SLAPP Statute of the Great State of Texas.