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909 E AUSTIN AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,867 sqftBuilt 1965

Property at a Glance

This home is estimated between $405,868 and $641,518, with a best estimate of $578,313. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$405,868 $641,518
Best Estimate
$578,313
WCAD Value
$545,129
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R701575F - OLD TOWN ROUND ROCK, this home's estimated market value is between $405,868 and $641,518. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

701 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,202 sqft Built 1976
Raw Value $558,887
Adjusted Value $438,856

Adjusted -$86,015 for 335 sqft less living space and -$34,016 for being older. Net adjustment: -$120,031.

605 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
2 bed 1 bath 2,034 sqft Built 1960
Raw Value $531,890
Adjusted Value $628,893

Adjusted -$42,879 for 167 sqft less living space and +$15,462 for being newer and +$124,420 for having a garage. Net adjustment: +$97,003.

608 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,248 sqft Built 1950
Raw Value $527,000
Adjusted Value $641,518

Adjusted +$158,935 for 619 sqft more living space and +$46,385 for being newer and -$90,802 for no pool. Net adjustment: +$114,518.

409 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 94% similar Same subdivision
3 bed 2 bath 1,877 sqft Built 2001
Raw Value $519,760
Adjusted Value $405,868

Adjusted -$2,568 for 10 sqft less living space and -$111,324 for being older. Net adjustment: -$113,892.

1101 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
3 bed 2 bath 1,338 sqft Built 1979
Raw Value $361,359
Adjusted Value $578,313

Adjusted +$135,827 for 529 sqft more living space and -$43,293 for being older and +$124,420 for having a garage. Net adjustment: +$216,954.

The Neighborhood

This home is valued 70.7% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$545,129
Median
$319,256

This home is +70.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,808 across all districts. With a homestead exemption claimed, that drops to $8,457 — saving $1,351 per year. That's $705 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,869
Round RockCity0.3720%$2,028
Williamson CountyCounty0.3694%$2,014
Austin Community Collegespecial0.1034%$564
Williamson County FM/RdCounty0.0443%$242
Upper Brushy Creek WCIDWater0.0170%$93
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,808

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $578,313 would pay approximately $3,610 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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