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Single Family ResidenceResidential
$277,649$132 / 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 Aug 30, 2026
Last sold for $127,400 on Feb 12, 2009

19818 MILLSTONE RIDGE LN

KATY, TX 77449
4
Beds
2.5
Baths
2,098 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.
2
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

$278K
$262K low$293K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$127,400 · Feb 12, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,023 (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.$290,527 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$55,382
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$235,145
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$288,185
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$290,527

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.4 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
CountyHARRIS
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 240 ft²Porch · 43 ft²

Transaction History(4)

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.

M
Thornton Middle SchoolC
Middle · Grades 6–8 · 0.2 mi
E
Sheridan Elementary SchoolC+
Elementary · Grades PK–5 · 0.2 mi
H
Cypress Lakes High SchoolC+
High · Grades 9–12 · 1.0 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%

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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

19818 Millstone Ridge Ln 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.

  • Costs less per square foot than 74% of homes in Harris County
  • Has a bigger lot than 69% of homes in Katy 77449
  • Newer than 98% of homes in Windstone Colony

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
$190K$411K

This home is worth more than 54% 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$277,649
CheaperTypical $273,630Pricier

Pricier than 54% of homes nearby

Price per ft²$132
CheaperTypical $144Pricier

Pricier than 32% of homes nearby

Living area2,098 ft²
SmallerTypical 1,872 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.15 ac
SmallerTypical 0.14 acBigger

Bigger than 69% of homes nearby

Year built2005
OlderTypical 2004Newer

Newer than 57% of homes nearby

How 19818 Millstone Ridge Ln ranks against every home in each area.
MeasureThis homeWindstone ColonyKaty 77449Harris County
Estimated valuepricier than$277,64960% of homes54% of homes47% of homes
Price per ft²pricier than$13246% of homes32% of homes26% of homes
Living areabigger than2,098 ft²52% of homes63% of homes59% of homes
Lot sizebigger than0.15 ac67% of homes69% of homes41% of homes
Year builtnewer than200598% of homes57% of homes73% of homes

About 19818 Millstone Ridge Ln

How much is 19818 Millstone Ridge Ln, Katy, TX worth?

The TopHap Estimate for 19818 Millstone Ridge Ln, Katy, TX is $277,649 as of Aug 30, 2026. The likely range is $261,895 to $293,403. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 19818 Millstone Ridge Ln, Katy, TX last sell?

19818 Millstone Ridge Ln, Katy, TX last sold on Feb 12, 2009 for $127,400, according to the county's recorded deed.

How big is 19818 Millstone Ridge Ln, Katy, TX?

19818 Millstone Ridge Ln, Katy, TX has 4 bedrooms, 2.5 bathrooms, 2,098 square feet of living space and a 0.15-acre lot.

When was 19818 Millstone Ridge Ln, Katy, TX built?

19818 Millstone Ridge Ln, Katy, TX was built in 2005, making it 21 years old. The building has 2 stories.

What schools serve 19818 Millstone Ridge Ln, Katy, TX?

19818 Millstone Ridge Ln, Katy, TX is assigned to Thornton Middle School (middle), rated C; Sheridan Elementary School (elementary), rated C+; Cypress Lakes 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 19818 Millstone Ridge Ln, Katy, TX compare to other homes in Katy 77449?

Among the 39,411 homes in Katy 77449, it is worth more than 54% of them ($277,649 against a typical $273,630), its price per square foot is higher than 32% of them ($132 against a typical $144), it is bigger than 63% of them (2,098 ft² against a typical 1,872 ft²), its lot is bigger than 69% of them (0.15 ac against a typical 0.14 ac) and it is newer than 57% of them (2005 against a typical 2004). Measured against all of Harris County, it is worth more than 47% 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 19818 Millstone Ridge Ln, Katy, TX?

The 2025 property tax bill for 19818 Millstone Ridge Ln, Katy, TX was $2,023. The county assessed it at $290,527.

More homes on Millstone Ridge Ln

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