Canyon Gate at Cinco Ranch, Katy: Prices and Flood History

Canyon Gate at Cinco Ranch sold 19 homes over the last twelve months. The median sale price was $381,750, or $140.08 per square foot.

If you were looking for the Richmond community with a similar name, that is a different subdivision: Canyon Gate at the Brazos in ZIP 77469, and none of the figures on this page describe it.

The rest of Cinco Ranch sold 490 homes at $179.44 per square foot over the same period.

So Canyon Gate trades roughly 22 percent below the community it belongs to. Homes here also take well over twice as long to sell, at a median 34 days against 20 days.

That gap is the whole story of this neighborhood, and it starts in August 2017.

What Happened Here During Harvey

Canyon Gate sits inside the flood pool behind Barker Reservoir. Hurricane Harvey stalled over Houston in August 2017. The reservoir filled past the land the government owns, and the water moved into the subdivision.

The Houston Chronicle reported at the time that all 721 homes in Canyon Gate flooded. Residents evacuated, and many could not reach their homes for days.

I saw it from the air myself. This is not a statistical risk that might happen. It happened, to every house.

Why It Happened

The Army Corps of Engineers built the Addicks and Barker dams in the 1940s to protect downtown Houston, about twenty miles downstream. The reservoirs behind them stay dry almost all the time.

Richard Long oversaw those reservoirs for the Corps for more than three decades. He explained the problem plainly to the Dallas Morning News. The Corps bought only the minimum land it needed. The dams were built to hold larger lakes than that land could contain.

The Corps owns the ground that floods in a hundred-year event. Beyond that line, developers were free to build, and they did.

In 1962 the Corps predicted that thousands of acres of private property could be consumed by these lakes in a large enough storm. Subdivisions went up anyway over the following decades.

Today about 14,000 homes sit inside the two reservoirs. During Harvey, 5,138 of them flooded, according to analysis by the Texas Tribune and ProPublica.

What Buyers Were And Were Not Told

This part matters, and it is a matter of public record rather than opinion.

Subdivision maps for South Park, the neighborhood directly adjacent to Canyon Gate, carried an extended inundation warning. The Houston Chronicle reviewed the municipal utility district bond prospectuses issued for Canyon Gate between 2005 and 2012. Those documents discussed drainage and flood plain studies. They did not tell investors that the neighborhood sat next to Barker Reservoir and could be held underwater by the Corps.

Homeowners have said consistently that nobody told them either.

What The Market Says Now

Figures below cover the twelve months ending August 2026, single family homes, taken straight from the MLS.

Read the price per square foot rather than the headline price. Canyon Gate homes are smaller on median, so part of the $161,000 price gap is simply size. The per foot figure controls for that, and it still shows a 19 percent discount.

Age does not explain the gap either. Five years separate the two medians.

One caution on the numbers. Nineteen sales is a small sample, so treat these figures as a fair indication rather than a precise measurement.

What This Means If You Are Buying

You get materially more house for the money. The amenities and the Katy ISD schools are the same as the rest of Cinco Ranch.

You also buy in a subdivision that flooded completely nine years ago. The flood pool exists on purpose, and it has not moved.

Both of those things are true at once. Some buyers will weigh that trade and take it. Others will not, and both answers are reasonable.

What This Means If You Are Selling

The discount is real and the market has held it for nine years. Pricing against Cinco Ranch comparables outside Canyon Gate will cost you time on market.

The 34 day median tells you buyers here take longer to decide. Plan for that rather than reacting to it in week three.

What To Check Before You Buy Here

Do not accept a general answer about the neighborhood. Ask about the specific address.

Pull the FEMA flood zone for the property. Ask whether the home has flooded, and whether it has ever had a flood insurance claim. Ask for an elevation certificate if one exists, and ask what repairs or elevation work the owner completed after 2017.

Get a flood insurance quote before you write an offer rather than after. Premiums vary widely here.

There has also been extended litigation involving the Corps and property owners around these reservoirs, and it has continued to develop. I am a broker and not an attorney, so I will not characterize what any of it means for you. If that matters to your decision, and it reasonably might, ask a real estate attorney before you sign.

Common Questions

Did Canyon Gate flood during Hurricane Harvey?

Yes. The Houston Chronicle reported that all 721 homes in Canyon Gate flooded in August 2017.

Why did Canyon Gate flood when most of Cinco Ranch did not?

Canyon Gate sits inside the flood pool behind Barker Reservoir. When the reservoir filled past the government owned land during Harvey, the water reached the subdivision.

What is Canyon Gate worth compared to the rest of Cinco Ranch?

Canyon Gate sold at $140.08 per square foot over the last twelve months, against $179.44 for Cinco Ranch overall. That is roughly 22 percent lower, across 19 sales.

Is Canyon Gate part of Cinco Ranch?

Yes, and the MLS also tracks it as its own community. It shares Cinco Ranch amenities and Katy ISD schools.

Can it flood again?

The reservoir and the flood pool still exist, so the underlying condition has not changed. How any individual home would fare depends on its elevation and location. That is why you check the specific address rather than the neighborhood.

Talk It Through With Someone Who Will Say It Plainly

Canyon Gate is a neighborhood where the honest answer takes more than one sentence. The homes are a genuine value and the flood history is genuine too.

I have worked the Katy market since 2002. If you are buying here, I will help you ask the right questions about the specific address. If you are selling here, I will price it against what Canyon Gate actually trades for.

Call me at 281-387-1535 or email zach@zachregroup.com.

For the wider community, see Cinco Ranch. For the whole market, see my Katy TX real estate guide.

Market figures pulled from HAR Matrix on August 29, 2026, covering single-family sold listings over the twelve months prior, filtered by subdivision name. The Canyon Gate figures rest on 19 sales, so treat them as a small sample and confirm comps for a specific street. Counts shift as new sales close and older ones age out of the window. Flood designations are address specific and change with map revisions.