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600 AUSTIN AVE E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,356 sqftBuilt 2012

Property at a Glance

This home is estimated between $322,572 and $483,489, with a best estimate of $386,386. 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

$322,572 $483,489
Best Estimate
$386,386
WCAD Value
$732,336
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 $322,572 and $483,489. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

305 E AUSTIN AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,524 sqft Built 2008
Raw Value $505,830
Adjusted Value $441,445

Adjusted -$43,136 for 168 sqft less living space and +$12,369 for being newer and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: -$64,385.

303 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,320 sqft Built 1991
Raw Value $282,008
Adjusted Value $322,572

Adjusted +$9,243 for 36 sqft more living space and +$64,939 for being newer and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: +$40,564.

405 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,488 sqft Built 1994
Raw Value $370,917
Adjusted Value $483,489

Adjusted -$33,892 for 132 sqft less living space and +$55,662 for being newer and +$90,802 for having a pool. Net adjustment: +$112,572.

408 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 93% similar Same subdivision
3 bed 2 bath 2,050 sqft Built 2015
Raw Value $569,249
Adjusted Value $348,162

Adjusted -$178,192 for 694 sqft less living space and -$9,277 for being older and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: -$221,087.

409 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 91% similar Same subdivision
3 bed 2 bath 1,877 sqft Built 2001
Raw Value $519,760
Adjusted Value $386,386

Adjusted -$133,772 for 521 sqft less living space and +$34,016 for being newer and +$90,802 for having a pool and -$124,420 for no garage. Net adjustment: -$133,374.

The Neighborhood

This home is valued 129.4% 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
$732,336
Median
$319,256

This home is +129.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,177 across all districts. With a homestead exemption claimed, that drops to $11,791 — saving $1,386 per year. That's $983 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%$6,540
Round RockCity0.3720%$2,724
Williamson CountyCounty0.3694%$2,706
Austin Community Collegespecial0.1034%$757
Williamson County FM/RdCounty0.0443%$325
Upper Brushy Creek WCIDWater0.0170%$124
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,177

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $386,386 would pay approximately $2,412 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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