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408 AUSTIN AVE E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,050 sqftBuilt 2015

Property at a Glance

This home is estimated between $543,660 and $704,576, with a best estimate of $633,811. 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

$543,660 $704,576
Best Estimate
$633,811
WCAD Value
$569,249
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 $543,660 and $704,576. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

409 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,877 sqft Built 2001
Raw Value $519,760
Adjusted Value $607,473

Adjusted +$44,420 for 173 sqft more living space and +$43,293 for being newer. Net adjustment: +$87,713.

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 $662,532

Adjusted +$135,056 for 526 sqft more living space and +$21,646 for being newer. Net adjustment: +$156,702.

306 E AUSTIN AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2,430 sqft Built 2021
Raw Value $625,514
Adjusted Value $633,811

Adjusted -$97,569 for 380 sqft less living space and -$18,554 for being older and +$124,420 for having a garage. Net adjustment: +$8,297.

405 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,488 sqft Built 1994
Raw Value $370,917
Adjusted Value $704,576

Adjusted +$144,300 for 562 sqft more living space and +$64,939 for being newer and +$124,420 for having a garage. Net adjustment: +$333,659.

303 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 93% similar Same subdivision
3 bed 2 bath 1,320 sqft Built 1991
Raw Value $282,008
Adjusted Value $543,660

Adjusted +$187,436 for 730 sqft more living space and +$74,216 for being newer. Net adjustment: +$261,652.

The Neighborhood

This home is valued 78.3% 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
$569,249
Median
$319,256

This home is +78.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,242 across all districts. With a homestead exemption claimed, that drops to $8,887 — saving $1,355 per year. That's $741 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%$5,084
Round RockCity0.3720%$2,118
Williamson CountyCounty0.3694%$2,103
Austin Community Collegespecial0.1034%$589
Williamson County FM/RdCounty0.0443%$252
Upper Brushy Creek WCIDWater0.0170%$97
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,242

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $633,811 would pay approximately $3,956 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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