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2021 MIMOSA TRL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,035 sqftBuilt 1998

Property at a Glance

This home is estimated between $378,806 and $449,924, with a best estimate of $401,831. That places the property above the R510485H - SOUTHCREEK median of $335,905, in a neighborhood that declined 4.2% over the past year.

Estimated Value Range

$378,806 $449,924
Best Estimate
$401,831
WCAD Value
$347,700
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R510485H - SOUTHCREEK. The estimated range of $378,806 and $449,924 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,671 sqft Built 2000
Raw Value $318,178
Adjusted Value $401,831

Adjusted +$86,602 for 364 sqft more living space and -$2,949 for being older. Net adjustment: +$83,653.

3 bed 2 bath 1,725 sqft Built 2006
Raw Value $316,846
Adjusted Value $378,806

Adjusted +$73,755 for 310 sqft more living space and -$11,795 for being older. Net adjustment: +$61,960.

3 bed 2 bath 2,222 sqft Built 2013
Raw Value $448,073
Adjusted Value $381,467

Adjusted -$44,491 for 187 sqft less living space and -$22,115 for being older. Net adjustment: -$66,606.

3 bed 2 bath 1,344 sqft Built 1998
Raw Value $285,522
Adjusted Value $449,924

Adjusted +$164,402 for 691 sqft more living space. Net adjustment: +$164,402.

3 bed 2 bath 1,386 sqft Built 2000
Raw Value $288,548
Adjusted Value $440,008

Adjusted +$154,409 for 649 sqft more living space and -$2,949 for being older. Net adjustment: +$151,460.

The Neighborhood

This home is valued 3.5% above the R510485H - SOUTHCREEK median of $335,905. With 1,020 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.2% over the past year.

R510485H - SOUTHCREEK

typical
1,020 Properties
$335,905 Median Value
-4.2% YoY Change
1% Have Pool
97% Have Garage
This Home
$347,700
Median
$335,905

This home is +3.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,256 across all districts. With a homestead exemption claimed, that drops to $4,942 — saving $1,314 per year. That's $412 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%$3,105
Round RockCity0.3720%$1,293
Williamson CountyCounty0.3694%$1,285
Austin Community Collegespecial0.1034%$360
Williamson County FM/RdCounty0.0443%$154
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,256

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $401,831 would pay approximately $2,508 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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