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Duplex (2 Units, Any Combination)Residential

8423 FATHOM CIR

AUSTIN, TX 78750
5
Baths
3,084 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.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
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.$6,323 (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.$624,136 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$520,487
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$675,738

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
CountyTRAVIS
Lot (acres)The size of the land the home sits on, from county records.0.21
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
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
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Deck · 52 ft²Porch · 248 ft²

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

M
Canyon Vista Middle SchoolA+
Middle · Grades 6–8 · 0.6 mi
E
Caraway Elementary SchoolA+
Elementary · Grades KG–5 · 1.2 mi
H
Westwood High SchoolA+
High · Grades 9–12 · 1.8 mi

District: Round Rock Independent School District

Neighborhood · ZIP 78750These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.17

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.32,798
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,679 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,496
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,485
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

8423 Fathom Cir 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.

  • Bigger than 86% of homes in Travis County
  • Older than 78% of homes in Travis County

How it measures up in Austin 78750

The dot is this home. The mark in the middle is the typical home in Austin 78750.

Living area3,084 ft²
SmallerTypical 2,211 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.21 ac
SmallerTypical 0.24 acBigger

Bigger than 37% of homes nearby

Year built1977
OlderTypical 1983Newer

Newer than 23% of homes nearby

How 8423 Fathom Cir ranks against every home in each area.
MeasureThis homeAustin 78750Travis County
Living areabigger than3,084 ft²83% of homes86% of homes
Lot sizebigger than0.21 ac37% of homes60% of homes
Year builtnewer than197723% of homes22% of homes

About 8423 Fathom Cir

When did 8423 Fathom Cir, Austin, TX last sell?

8423 Fathom Cir, Austin, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 8423 Fathom Cir, Austin, TX?

8423 Fathom Cir, Austin, TX has 5 bathrooms, 3,084 square feet of living space and a 0.21-acre lot.

When was 8423 Fathom Cir, Austin, TX built?

8423 Fathom Cir, Austin, TX was built in 1977, making it 49 years old. It is a duplex single home. The building has 2 stories.

What schools serve 8423 Fathom Cir, Austin, TX?

8423 Fathom Cir, Austin, TX is assigned to Canyon Vista Middle School (middle), rated A+; Caraway Elementary School (elementary), rated A+; Westwood 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 8423 Fathom Cir, Austin, TX compare to other homes in Austin 78750?

Among the 8,588 homes in Austin 78750, it is bigger than 83% of them (3,084 ft² against a typical 2,211 ft²), its lot is bigger than 37% of them (0.21 ac against a typical 0.24 ac) and it is newer than 23% of them (1977 against a typical 1983). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 8423 Fathom Cir, Austin, TX?

The 2025 property tax bill for 8423 Fathom Cir, Austin, TX was $6,323. The county assessed it at $624,136.

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