"The water had drained out of the home, but everything was wet."
That is how Elisio Soares described returning to his house in Cinco Ranch Equestrian Village a few days after Hurricane Harvey. He paddled a kayak to get there. Eight inches of contaminated water had moved through his living room, and mold was already growing by the time he arrived. His home was never in a FEMA flood zone. The mortgage paperwork never required flood insurance. By every number a lender or an appraiser typically checks, the property was dry-land safe.
It flooded anyway, because it sat inside the Barker Reservoir's flood pool, a designation that has nothing to do with FEMA and everything to do with the U.S. Army Corps of Engineers. If you are selling a home anywhere near Cinco Ranch, Kelliwood, Canyon Gate, or Grand Lakes, this is the disclosure question that trips up honest sellers, not because they are hiding something, but because nothing else in homeownership ever asks about it until the Texas Seller's Disclosure Notice does.
Two agencies, two maps, one form that asks about both
Most sellers think of flood risk as a single yes-or-no question tied to a FEMA flood zone. FEMA draws the 100-year and 500-year floodplain lines that determine whether a lender requires flood insurance. That is one box on the disclosure form.
A separate box asks something FEMA never addresses: whether the property has flooded due to a failure or breach of a reservoir, or a controlled or emergency release of water from a reservoir. The form defines "reservoir" as a water impoundment project operated by the Army Corps of Engineers, and it defines "flood pool" as the area adjacent to a reservoir that sits above the normal operating level and is subject to controlled inundation under Army Corps management. That definition describes exactly what happened to thousands of homes west of Houston in August 2017, and it describes land that FEMA's own maps never flagged as high risk.
Addicks and Barker were built in the 1940s as flood control infrastructure for Buffalo Bayou. Today an estimated 14,000 homes sit inside the two reservoir basins, land that was largely agricultural when the dams went up and has since filled with subdivisions built on privately owned acreage the Army Corps never purchased. The Fairways at Kelliwood, Cinco Ranch, Canyon Gate, and Grand Lakes all sit on some portion of that footprint.
Why Fort Bend warned and Harris County didn't
Here is the detail that explains why so many Katy-area sellers answer this question wrong even when they're trying to get it right. Starting in 1994, Fort Bend County began requiring a one-sentence warning about potential controlled inundation on subdivision plat records for land near Barker Reservoir. Canyon Gate sits inside Fort Bend County, so on paper it should carry that warning. It never did, because the Municipal Utility District that governs the subdivision was created in 1985, nine years before the county's warning requirement existed, and its records were never updated to add the language after the fact. Harris County, which contains other Cinco Ranch neighborhoods on the opposite side of the same reservoir, never adopted a plat warning requirement at all, so those residents had no version of the notice under either system.
Susan Menke, a land broker who worked on the deals that shaped parts of Cinco Ranch and Grand Lakes, said she had never heard the term "flood pool" before Harvey. Her reaction, once she understood what the designation meant for the master-planned communities she had helped build, was that a mandatory notice like that could have made those neighborhoods difficult to sell in the first place.
That is the mechanism worth sitting with. The flood pool question was not omitted from disclosures because sellers were being deceptive. It was omitted because the information it required did not exist anywhere in the ordinary chain of paperwork a homeowner ever encounters, unless the county happened to print it on a plat map decades earlier.
The number that should worry every Katy-area seller right now
During discovery for the compensation phase of the federal case against the Army Corps, attorneys representing upstream homeowners reviewed 1,200 seller disclosures for properties inside the reservoir footprint. Fewer than 3 percent correctly answered the flood pool question, and the ones that did were almost all clients the attorneys had personally advised on how to complete the form.
That statistic is not a historical footnote. It is a direct measure of how often this specific box gets missed on transactions in exactly the neighborhoods this brand serves. A seller who checks "no" because they genuinely did not know their subdivision sits in a flood pool is still making a disclosure that, if the home floods again, a buyer's attorney will scrutinize under the Texas Deceptive Trade Practices Act. Failure to properly disclose reservoir and flood pool status can expose a seller to liability even when the omission was unintentional.
This is not settled history
It would be easier to treat all of this as a Harvey-era story if the legal questions were closed. They are not. As of late August 2026, the federal government still had not decided whether to petition the U.S. Supreme Court over the upstream case, after a federal appeals court largely upheld a ruling in the homeowners' favor in December 2025. The government's decision deadline has been extended repeatedly, most recently to September 4, 2026, and attorneys for the roughly 10,000 upstream property owners involved say a favorable ruling still won't mean an immediate check for most homeowners. One property owner told a local news outlet this month that he never expected the wait to stretch past nine years.
A related but separate case covering downstream properties reached its own compensable-takings ruling in April 2026, reinforcing the same legal theory from the opposite direction of the reservoirs. Together, these cases mean that flood pool status in the Katy area is an active, unresolved legal fact with dollar figures still being litigated, not a piece of history a seller can wave away with "that was Harvey."
The paperwork just got heavier
If you are listing a home in the Katy area this fall, you are already working with a revised disclosure regime. The Texas Real Estate Commission adopted updates to the Seller's Disclosure Notice on May 4, 2026. The revised notice and a brand-new standalone companion form, the Water Notice, became mandatory no later than July 1, 2026, and the Water Notice requires sellers to disclose what they know about groundwater and surface water rights, including whether the property sits inside a groundwater conservation district. Neither of these changes replaces the flood pool question. They add to the total disclosure obligation sitting on top of it.
For a seller near Addicks or Barker, that means more boxes to get right, not fewer, at the exact moment the underlying legal exposure around reservoir flooding remains unresolved in federal court.
What this means before you list
If your property sits anywhere inside the historical footprint of the Cinco Ranch, Kelliwood, Canyon Gate, or Grand Lakes communities, a few steps are worth taking before you sign a listing agreement:
- Check whether your subdivision plat carries a Fort Bend County controlled inundation warning, since that language may exist in county records even if it never reached you as a homeowner.
- Review your own flood insurance claim history and any FEMA or SBA assistance received, both of which are separate disclosure items from the reservoir question itself.
- Ask whether your home was among the properties that took on water during the August 2017 releases, distinct from asking whether your home sits in a FEMA-mapped floodplain, because the two questions have different legal answers.
- Read the flood pool and reservoir definitions on the current TREC form directly rather than relying on memory of what the box asked before 2019, since the language has been refined since Harvey.
None of this is a substitute for advice from a real estate attorney if your disclosure history is unclear or if your home has a documented flood event you are unsure how to characterize.
Frequently asked questions
Does being outside a FEMA flood zone mean I don't need to answer the flood pool question? No. The two designations come from different agencies and measure different things. A property can sit outside every FEMA-mapped floodplain and still be inside a reservoir's flood pool, which is exactly what happened to thousands of homes in the Cinco Ranch and Kelliwood areas during Harvey.
If my home never actually flooded, do I still need to disclose that it's in the flood pool? The disclosure form asks about previous flooding from a reservoir failure, breach, or controlled release, not simply proximity to a reservoir. If your home never took on water, that specific box may not apply, but a knowledgeable agent or attorney should confirm how your particular property and history should be characterized given its location.
Is the ongoing federal litigation going to affect my ability to sell? The litigation determines compensation for past flooding, not a homeowner's ability to sell today. It does mean that flood pool status remains a live legal and financial issue for the region, which is exactly why getting the disclosure right matters more here than in a market without this history.
Selling a home near the reservoirs comes with a disclosure history that most sellers only encounter once. Getting the Seller's Disclosure Notice and Water Notice right, on the first try, protects you long after closing. Fredy Penaranda Real Estate works through this paperwork with sellers across Katy, Cypress, and the greater Houston area every week. Schedule a real estate strategy call before you list.
