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Single Family ResidenceResidential
$313,646$117 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $275,310 on Jul 30, 2021

19839 RIVER ROCK DR

KATY, TX 77449
4
Beds
2.5
Baths
2,684 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$314K
$295K low$332K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$275,310 · Jul 30, 2021
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$106,646
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$85,317
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.68%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$207,000
FROST BANK · recorded May 6, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,324 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$302,444 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$68,688
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$233,756
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$319,579
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$302,444

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.20 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.''

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyHARRIS
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2015
Lot (acres)The size of the land the home sits on, from county records.0.21
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 24 ft²

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Duryea Elementary SchoolC-
Elementary · Grades PK–5 · 0.5 mi
M
Hopper Middle SchoolC-
Middle · Grades 6–8 · 1.4 mi
H
Cypress Springs High SchoolC-
High · Grades 9–12 · 6.0 mi

District: Cypress-Fairbanks Independent School District

Neighborhood · ZIP 77449These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.38
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.23

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.140,845
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,755 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,095
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,357
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

19839 River Rock Dr measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 79% of homes in Katy 77449
  • Costs less per square foot than 88% of homes in Katy 77449
  • Bigger than 89% of homes in Katy 77449
  • Has a bigger lot than 92% of homes in Katy 77449
  • Older than 80% of homes in Katy 77449

What homes are worth in Katy 77449

Each bar is how many homes fall in that price range. The marker is this home.

This home
$146K$396K

This home is worth more than 79% of homes in Katy 77449.

How it measures up in Katy 77449

The dot is this home. The mark in the middle is the typical home in Katy 77449.

Estimated value$313,646
CheaperTypical $276,745Pricier

Pricier than 79% of homes nearby

Price per ft²$117
CheaperTypical $145Pricier

Pricier than 12% of homes nearby

Living area2,684 ft²
SmallerTypical 1,872 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.21 ac
SmallerTypical 0.14 acBigger

Bigger than 92% of homes nearby

Year built1992
OlderTypical 2004Newer

Newer than 20% of homes nearby

How 19839 River Rock Dr ranks against every home in each area.
MeasureThis homeKaty 77449Harris County
Estimated valuepricier than$313,64679% of homes58% of homes
Price per ft²pricier than$11712% of homes12% of homes
Living areabigger than2,684 ft²89% of homes78% of homes
Lot sizebigger than0.21 ac92% of homes71% of homes
Year builtnewer than199220% of homes53% of homes

About 19839 River Rock Dr

How much is 19839 River Rock Dr, Katy, TX worth?

The TopHap Estimate for 19839 River Rock Dr, Katy, TX is $313,646 as of Jul 14, 2026. The likely range is $294,799 to $332,493. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 19839 River Rock Dr, Katy, TX last sell?

19839 River Rock Dr, Katy, TX last sold on Jul 30, 2021 for $275,310, according to the county's recorded deed.

How big is 19839 River Rock Dr, Katy, TX?

19839 River Rock Dr, Katy, TX has 4 bedrooms, 2.5 bathrooms, 2,684 square feet of living space and a 0.21-acre lot.

When was 19839 River Rock Dr, Katy, TX built?

19839 River Rock Dr, Katy, TX was built in 1992, making it 34 years old. It is a traditional/old home. The building has 1 story.

What schools serve 19839 River Rock Dr, Katy, TX?

19839 River Rock Dr, Katy, TX is assigned to Duryea Elementary School (elementary), rated C-; Hopper Middle School (middle), rated C-; Cypress Springs High School (high), rated C-. All sit in Cypress-Fairbanks Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 19839 River Rock Dr, Katy, TX compare to other homes in Katy 77449?

Among the 39,411 homes in Katy 77449, it is worth more than 79% of them ($313,646 against a typical $276,745), its price per square foot is higher than 12% of them ($117 against a typical $145), it is bigger than 89% of them (2,684 ft² against a typical 1,872 ft²), its lot is bigger than 92% of them (0.21 ac against a typical 0.14 ac) and it is newer than 20% of them (1992 against a typical 2004). Measured against all of Harris County, it is worth more than 58% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 19839 River Rock Dr, Katy, TX?

The 2025 property tax bill for 19839 River Rock Dr, Katy, TX was $4,324. The county assessed it at $302,444.

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