People moving to the Katy area are often concerned about Katy flood zones. The good news is that, for the most part and with few exceptions, Katy neighborhoods are located in a 500-year floodplain which means that they have 0.2 percent risk for flooding each year…less than 1/2 percent!
0.2 percent (500-year) floodplain – A 0.2 percent (500-year) floodplain is an area at risk for flooding from a bayou, creek or other waterway overflowing during a 0.2 percent (500-year) flood. Structures located in a 0.2 percent (500-year) floodplain have a minimum of a 0.2 percent chance of flooding in any given year.
I’m not a flood expert, weather expert, engineer, surveyor, etc…I’ve just lived on the Texas Gulf Coast for over 40 years and experienced many floods, hurricanes and tropical storms. Here’s my opinion based on what I have experienced…
Pretty much all areas of the United States (and the world) have to deal with natural disasters. In California it’s earthquakes, mudslides, and wild fires. In the Midwest it’s tornadoes. In the Northeast it’s winter storms and blizzards. Many parts of the country deal with flooding…especially near rivers. Other parts deal with severe droughts. The fact is, you can’t completely avoid natural disasters anywhere…so you need to minimize your risk and prepare for them as best you can.
If you want to live anywhere on the Gulf Coast (Texas, Louisiana, Mississippi, Alabama, Florida) or anywhere in the Houston region, then you will need to be prepared for hurricanes and flash flooding. One thing history has shown us regarding flooding…history means nothing! Each time we experience a major flood, you will see many flooded home owners on the news saying something like, “We’ve lived here over 30 years and never flooded before.” Last year (2019) there was a major flash flood and the new thing we heard afterwards was, “We didn’t flood in Harvey, but we flooded this time.”
So just because a home has never flooded before, does NOT guarantee it will not flood in the future. It just means it has a lower risk for flooding. Likewise, just because a home flooded during Hurricane Harvey, does NOT mean it will ever flood again. That was a historical storm that, most experts believe, is unlikely to occur in Katy again in our lifetime.
So, if you are buying a home in most parts of Katy Texas, then your risk for your home flooding is relatively low, especially compared to the rest of the Houston area.
NOTE: In my definition of “flooding” I am referring to your home being infiltrated with flood/surface water.
What Katy Areas Flooded After Hurricane Harvey?
Even though there are no common, high-risk “Katy flood zones” (neighborhoods that flood on a regular basis) in East and West Katy, during Hurricane Harvey, two unprecedented things occurred that caused a few homes in Katy to flood…mostly homes located around the Addicks and Barker Reservoirs:
- Harvey dropped a record-breaking amount of rain in the Houston region…over 50 inches (“only” 31 inches in Katy).
- The amount of rain that fell cause the Addicks-Barker Reservoirs to Overfill
In East Katy, this mainly impacted some (not all) homes and businesses located in the subdivisions closest to the Barker Reservoir. In West Katy, few homes around lakes and bayous may have had very limited flooding.
While Katy flood zones are typically rated as 100-year or 500-year, Hurricane Harvey is being described as a an unprecedented, 1,000 year or even 3,000 year event (read more)! This means that homes that flooded during that once-in-a-life time weather event may never flood again.
What to Watch for When Buying a Home
Less than 8 percent of Katy homes and businesses (approximately 7,209) were flooded during Hurricane Harvey…so don’t let what you see on TV give you the wrong impression…most of the homes in Katy TX do not flood on a regular basis and did not flood even during this HISTORIC hurricane. The water got high and some of the roads were flooded for a few days (mostly around Fry Rd, east of Grand Parkway), but this was an unprecedented weather event which may never occur again.
With that in mind, I will say that it will be very important for home buyers to watch out for repaired homes and to make sure they have been repaired properly. The main thing that most people worry about is mold problems in homes that have flooded. Supposedly, once the homes have been properly dried out, then mold cannot grow. Mold requires moisture to grow. While mold spores are around us all the time, they will not grow and become a problem when the source of the moisture is eliminated. It’s hidden leaks and on-going moisture that allows mold to grow. (read more)
By now, homes that were repaired after Hurricane Harvey, should be properly dried out and restored. If there are any concerns of mold issues, it’s easy to have an air analysis performed by an expert and determine if the home has a hidden problem with high levels of mold spores. If it does, then move on to another home. If it doesn’t, then you get an updated home in a beautiful area of Katy (where the homes tend to be older and outdated).
“I am highly allergic to mold and I always do an air analysis when I buy a home.
I paid for these tests on the last three homes I purchased, even though none
of them had ever flooded.” –Sheila Cox
The Texas Legislature passed a law, effective September 1, 2019, that now requires home sellers to fully disclose flood zones and flood history for homes. Section 5 now looks like this:
So this will be information you will receive when you buy a home in Texas. But beware of investors who have never lived in the home and can, therefore, avoiding reporting these issues. (I can help you look out for that!)
> View a current list of Katy Homes for Sale in Low-Risk Flood Zones
>> Read Katy vs Sugar Land
Flood Insurance Important for ALL Gulf Coast Areas
As a resident of the Gulf Coast, you should know that hundreds of homes in the Houston area that are not in high-risk flood zones and had never flooded before during any other flood or hurricane event, did flood during Harvey. So that means…you never know for sure and you had better carry Flood Insurance on your home at all times! In my opinion, a $400/yr flood insurance policy is worth the peace of mind you have from knowing you won’t be financially devastated if a storm sits on top of your neighborhood and drops 50 inches of rain! I don’t know of any areas in the country that can handle that much water…do you?
One of my biggest pet-peeves is hearing people in the Houston region say, “I don’t need flood insurance because my home has never flooded before.” Duh. Neither did approximately 85 percent of the homes that flooded during Harvey! One thing I can guarantee you about flooding on the Gulf Coast…there are NO guarantees.
I live in a very low-risk flood zone area and I HAVE FLOOD INSURANCE!
Please share this info with your Friends!
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