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Duplex (2 Units, Any Combination)Residential

509 OLD WEST DR

ROUND ROCK, TX 78681
4
Baths
1,744 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,918 (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.$321,177 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$322,444
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$359,086

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.42
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
99
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
46
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
46
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyWILLIAMSON
Lot (acres)The size of the land the home sits on, from county records.0.20
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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 · 126 ft²

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

E
Bluebonnet Elementary SchoolD-
Elementary · Grades PK–5 · 0.5 mi
M
Chisholm Trail Middle SchoolB+
Middle · Grades 6–8 · 1.5 mi
H
Round Rock High SchoolA
High · Grades 9–12 · 1.7 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78681These 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.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.72,546
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,224 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,547
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,868
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

509 Old West 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.

  • Smaller than 79% of homes in Round Rock 78681
  • Older than 90% of homes in Williamson County

How it measures up in Round Rock 78681

The dot is this home. The mark in the middle is the typical home in Round Rock 78681.

Living area1,744 ft²
SmallerTypical 2,332 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.2 ac
SmallerTypical 0.2 acBigger

Bigger than 49% of homes nearby

Year built1982
OlderTypical 1999Newer

Newer than 17% of homes nearby

How 509 Old West Dr ranks against every home in each area.
MeasureThis homeRound Rock 78681Williamson County
Living areabigger than1,744 ft²21% of homes31% of homes
Lot sizebigger than0.2 ac49% of homes51% of homes
Year builtnewer than198217% of homes10% of homes

About 509 Old West Dr

When did 509 Old West Dr, Round Rock, TX last sell?

509 Old West Dr, Round Rock, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 Old West Dr, Round Rock, TX?

509 Old West Dr, Round Rock, TX has 4 bathrooms, 1,744 square feet of living space and a 0.20-acre lot.

When was 509 Old West Dr, Round Rock, TX built?

509 Old West Dr, Round Rock, TX was built in 1982, making it 44 years old. It is a duplex single home. The building has 1 story.

What schools serve 509 Old West Dr, Round Rock, TX?

509 Old West Dr, Round Rock, TX is assigned to Bluebonnet Elementary School (elementary), rated D-; Chisholm Trail Middle School (middle), rated B+; Round Rock High School (high), rated A. All sit in Round Rock Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Old West Dr, Round Rock, TX compare to other homes in Round Rock 78681?

Among the 17,728 homes in Round Rock 78681, it is bigger than 21% of them (1,744 ft² against a typical 2,332 ft²), its lot is bigger than 49% of them (0.2 ac against a typical 0.2 ac) and it is newer than 17% of them (1982 against a typical 1999). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 509 Old West Dr, Round Rock, TX?

The 2025 property tax bill for 509 Old West Dr, Round Rock, TX was $3,918. The county assessed it at $321,177.

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