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908 MAIN AVE E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,165 sqftBuilt 2019

Property at a Glance

This home is estimated between $581,578 and $928,250, with a best estimate of $711,503. 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

$581,578 $928,250
Best Estimate
$711,503
WCAD Value
$884,566
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 $581,578 and $928,250. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

602 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 92% similar Same subdivision
3 bed 2 bath 2,224 sqft Built 1960
Raw Value $544,204
Adjusted Value $711,503

Adjusted -$15,149 for 59 sqft less living space and +$182,448 for being newer. Net adjustment: +$167,299.

605 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 90% similar Same subdivision
4 bed 3 bath 1,828 sqft Built 1991
Raw Value $755,137
Adjusted Value $928,250

Adjusted +$86,528 for 337 sqft more living space and +$86,585 for being newer. Net adjustment: +$173,113.

1406 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 88% similar Same subdivision
3 bed 2 bath 1,626 sqft Built 1982
Raw Value $283,003
Adjusted Value $660,234

Adjusted +$138,394 for 539 sqft more living space and +$114,417 for being newer and +$124,420 for having a garage. Net adjustment: +$377,231.

408 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 82% similar Same subdivision
3 bed 2 bath 1,473 sqft Built 1983
Raw Value $434,038
Adjusted Value $723,041

Adjusted +$177,679 for 692 sqft more living space and +$111,324 for being newer. Net adjustment: +$289,003.

710 MAIN AVE E, ROUND ROCK, TX 78664
0.00 mi 82% similar Same subdivision
3 bed 1 bath 2,251 sqft Built 1946
Raw Value $377,918
Adjusted Value $581,578

Adjusted -$22,081 for 86 sqft less living space and +$225,741 for being newer. Net adjustment: +$203,660.

The Neighborhood

This home is valued 177.1% 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
$884,566
Median
$319,256

This home is +177.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,841 across all districts. With a homestead exemption claimed, that drops to $11,459 — saving $1,382 per year. That's $955 per month a buyer should budget. The assessed value increased +36.3% vs the subdivision average of +4.3%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,374
Round RockCity0.3720%$2,655
Williamson CountyCounty0.3694%$2,637
Austin Community Collegespecial0.1034%$738
Williamson County FM/RdCounty0.0443%$316
Upper Brushy Creek WCIDWater0.0170%$121
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$12,841
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $711,503 would pay approximately $4,441 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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