Beta Williamson County, TX only — data and coverage are limited during early access.

1912 MEXIA DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,313 sqftBuilt 2018

Property at a Glance

This home is estimated between $456,591 and $571,642, with a best estimate of $540,652. That places the property above the R631414D - WARNER RANCH median of $436,007, in a neighborhood that declined 3.2% over the past year.

Estimated Value Range

$456,591 $571,642
Best Estimate
$540,652
WCAD Value
$437,453
High Confidence

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

Based on 5 comparable properties in R631414D - WARNER RANCH, this home's estimated market value is between $456,591 and $571,642. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1970 MEXIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,236 sqft Built 2017
Raw Value $448,197
Adjusted Value $456,591

Adjusted +$18,506 for 77 sqft more living space and -$10,112 for being older. Net adjustment: +$8,394.

1919 MEXIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,683 sqft Built 2018
Raw Value $420,231
Adjusted Value $571,642

Adjusted +$151,411 for 630 sqft more living space. Net adjustment: +$151,411.

1908 MEXIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,903 sqft Built 2018
Raw Value $442,115
Adjusted Value $540,652

Adjusted +$98,537 for 410 sqft more living space. Net adjustment: +$98,537.

1907 MEXIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,112 sqft Built 2018
Raw Value $485,253
Adjusted Value $533,560

Adjusted +$48,307 for 201 sqft more living space. Net adjustment: +$48,307.

1900 MEXIA DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,759 sqft Built 2017
Raw Value $418,676
Adjusted Value $541,710

Adjusted +$133,146 for 554 sqft more living space and -$10,112 for being older. Net adjustment: +$123,034.

The Neighborhood

This home is in line with the R631414D - WARNER RANCH median of $436,007. Note that values in this subdivision declined 3.2% over the past year.

R631414D - WARNER RANCH

typical
275 Properties
$436,007 Median Value
-3.2% YoY Change
0% Have Pool
97% Have Garage
This Home
$437,453
Median
$436,007

This home is +0.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,871 across all districts. With a homestead exemption claimed, that drops to $6,540 — saving $1,331 per year. That's $545 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%$3,907
Round RockCity0.3720%$1,627
Williamson CountyCounty0.3694%$1,616
Austin Community Collegespecial0.1034%$452
Williamson County FM/RdCounty0.0443%$194
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,871

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $540,652 would pay approximately $3,375 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.

View full property details