Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$752,842$433 / 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

4509 ROUNDUP TRL

AUSTIN, TX 78745
2.5
Baths
1,739 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
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.

Valuation

$753K
$711K low$795K high
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.$752,842
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$602,274

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,635 (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.$715,145 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$408,863
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$306,282
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$664,090
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$715,145

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.10 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.minimal

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
CountyTRAVIS
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 192 ft²Porch · 10 ft²

Transaction History(5)

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.

E
Joslin Elementary School
Elementary · Grades EE–5 · 0.3 mi
H
Crockett High SchoolC-
High · Grades 9–12 · 1.0 mi
M
Covington Middle SchoolB
Middle · Grades 6–8 · 2.6 mi

District: Austin Independent School District

Neighborhood · ZIP 78745These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.62,580
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,557 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,633
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,954
Average tempThe average temperature here across a full year.68°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%

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.Yes

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

4509 Roundup Trl 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 96% of homes in Austin 78745
  • Costs more per square foot than 94% of homes in Austin 78745
  • Bigger than 73% of homes in Austin 78745
  • Has a bigger lot than 80% of homes in Austin 78745
  • Older than 91% of homes in Austin 78745

What homes are worth in Austin 78745

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

This home
$210K$943K

This home is worth more than 96% of homes in Austin 78745.

How it measures up in Austin 78745

The dot is this home. The mark in the middle is the typical home in Austin 78745.

Estimated value$752,842
CheaperTypical $445,545Pricier

Pricier than 96% of homes nearby

Price per ft²$433
CheaperTypical $320Pricier

Pricier than 94% of homes nearby

Living area1,739 ft²
SmallerTypical 1,438 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.23 ac
SmallerTypical 0.18 acBigger

Bigger than 80% of homes nearby

Year built1961
OlderTypical 1978Newer

Newer than 9% of homes nearby

How 4509 Roundup Trl ranks against every home in each area.
MeasureThis homeWestgateAustin 78745Travis County
Estimated valuepricier than$752,84277% of homes96% of homes74% of homes
Price per ft²pricier than$43384% of homes94% of homes83% of homes
Living areabigger than1,739 ft²51% of homes73% of homes45% of homes
Lot sizebigger than0.23 ac45% of homes80% of homes66% of homes
Year builtnewer than196124% of homes9% of homes9% of homes

About 4509 Roundup Trl

How much is 4509 Roundup Trl, Austin, TX worth?

The TopHap Estimate for 4509 Roundup Trl, Austin, TX is $752,842 as of Jul 14, 2026. The likely range is $710,753 to $794,931. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4509 Roundup Trl, Austin, TX last sell?

4509 Roundup Trl, Austin, TX last sold on Jun 24, 2019, according to the county's recorded deed.

How big is 4509 Roundup Trl, Austin, TX?

4509 Roundup Trl, Austin, TX has 2.5 bathrooms, 1,739 square feet of living space and a 0.23-acre lot.

When was 4509 Roundup Trl, Austin, TX built?

4509 Roundup Trl, Austin, TX was built in 1961, making it 65 years old. The building has 1 story.

What schools serve 4509 Roundup Trl, Austin, TX?

4509 Roundup Trl, Austin, TX is assigned to Joslin Elementary School (elementary); Crockett High School (high), rated C-; Covington Middle School (middle), rated B. All sit in Austin Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4509 Roundup Trl, Austin, TX compare to other homes in Austin 78745?

Among the 18,205 homes in Austin 78745, it is worth more than 96% of them ($752,842 against a typical $445,545), its price per square foot is higher than 94% of them ($433 against a typical $320), it is bigger than 73% of them (1,739 ft² against a typical 1,438 ft²), its lot is bigger than 80% of them (0.23 ac against a typical 0.18 ac) and it is newer than 9% of them (1961 against a typical 1978). Measured against all of Travis County, it is worth more than 74% 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 4509 Roundup Trl, Austin, TX?

The 2025 property tax bill for 4509 Roundup Trl, Austin, TX was $14,635. The county assessed it at $715,145.

Closest homes

More homes in Austin 78745

Assigned schools

Explore the area

See this home in context

Open 4509 Roundup Trl 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