Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$547,429$180 / 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 93How 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 $326,800 on Jun 5, 2017

20519 DUNCAN RUN LN

CYPRESS, TX 77433
4
Beds
3.5
Baths
3,033 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
2016
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
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

$547K
$509K low$586K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$326,800 · Jun 5, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,488 (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.$470,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,582
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$397,418
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$480,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$470,000

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.19
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.Porch · 110 ft²

Transaction History(2)

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

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

M
Smith Middle SchoolA+
Middle · Grades 6–8 · 0.1 mi
E
Warner Elementary SchoolA+
Elementary · Grades PK–5 · 0.3 mi
H
Cypress Ranch High SchoolA-
High · Grades 9–12 · 0.4 mi

District: Cypress-Fairbanks Independent School District

Neighborhood · ZIP 77433These 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.15
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
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.116,439
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,942 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,060
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,264
Average tempThe average temperature here across a full year.68°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%

Owner Tools

Do you own this home?
Claim this home

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

20519 Duncan Run 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.

  • Worth more than 86% of homes in Harris County
  • Costs more per square foot than 74% of homes in Harris County
  • Bigger than 86% of homes in Harris County
  • Has a smaller lot than 68% of homes in Cypress Creek Lakes
  • Newer than 89% of homes in Cypress Creek Lakes

What homes are worth in Cypress 77433

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

This home
$210K$1.3M

This home is worth more than 68% of homes in Cypress 77433.

How it measures up in Cypress 77433

The dot is this home. The mark in the middle is the typical home in Cypress 77433.

Estimated value$547,429
CheaperTypical $436,164Pricier

Pricier than 68% of homes nearby

Price per ft²$180
CheaperTypical $169Pricier

Pricier than 62% of homes nearby

Living area3,033 ft²
SmallerTypical 2,664 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.19 ac
SmallerTypical 0.17 acBigger

Bigger than 59% of homes nearby

Year built2016
OlderTypical 2014Newer

Newer than 59% of homes nearby

How 20519 Duncan Run Ln ranks against every home in each area.
MeasureThis homeCypress Creek LakesCypress 77433Harris County
Estimated valuepricier than$547,42931% of homes68% of homes86% of homes
Price per ft²pricier than$18042% of homes62% of homes74% of homes
Living areabigger than3,033 ft²28% of homes64% of homes86% of homes
Lot sizebigger than0.19 ac32% of homes59% of homes61% of homes
Year builtnewer than201689% of homes59% of homes87% of homes

About 20519 Duncan Run Ln

How much is 20519 Duncan Run Ln, Cypress, TX worth?

The TopHap Estimate for 20519 Duncan Run Ln, Cypress, TX is $547,429 as of Aug 30, 2026. The likely range is $509,026 to $585,832. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20519 Duncan Run Ln, Cypress, TX last sell?

20519 Duncan Run Ln, Cypress, TX last sold on Jun 5, 2017 for $326,800, according to the county's recorded deed.

How big is 20519 Duncan Run Ln, Cypress, TX?

20519 Duncan Run Ln, Cypress, TX has 4 bedrooms, 3.5 bathrooms, 3,033 square feet of living space and a 0.19-acre lot.

When was 20519 Duncan Run Ln, Cypress, TX built?

20519 Duncan Run Ln, Cypress, TX was built in 2016, making it 10 years old. The building has 2 stories.

What schools serve 20519 Duncan Run Ln, Cypress, TX?

20519 Duncan Run Ln, Cypress, TX is assigned to Smith Middle School (middle), rated A+; Warner Elementary School (elementary), rated A+; Cypress Ranch High School (high), rated A-. All sit in Cypress-Fairbanks Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20519 Duncan Run Ln, Cypress, TX compare to other homes in Cypress 77433?

Among the 44,288 homes in Cypress 77433, it is worth more than 68% of them ($547,429 against a typical $436,164), its price per square foot is higher than 62% of them ($180 against a typical $169), it is bigger than 64% of them (3,033 ft² against a typical 2,664 ft²), its lot is bigger than 59% of them (0.19 ac against a typical 0.17 ac) and it is newer than 59% of them (2016 against a typical 2014). Measured against all of Harris County, it is worth more than 86% 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 20519 Duncan Run Ln, Cypress, TX?

The 2025 property tax bill for 20519 Duncan Run Ln, Cypress, TX was $9,488. The county assessed it at $470,000.

More homes on Duncan Run Ln

Closest homes

More homes in Cypress 77433

Assigned schools

Explore the area

See this home in context

Open 20519 Duncan Run Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map