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16821 TOMCAT DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,799 sqftBuilt 1995

Property at a Glance

This home is estimated between $168,718 and $466,513, with a best estimate of $426,717. That places the property below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685, in a neighborhood that declined 6.9% over the past year.

Estimated Value Range

$168,718 $466,513
Best Estimate
$426,717
WCAD Value
$390,979
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $168,718 and $466,513. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

16709 DORMAN DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $439,694

Adjusted +$58,037 for 215 sqft more living space. Net adjustment: +$58,037.

16829 LUCKENWALD DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $426,717

Adjusted +$57,767 for 214 sqft more living space and -$14,931 for being older. Net adjustment: +$42,836.

16716 TOMCAT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $401,413

Adjusted +$33,472 for 124 sqft more living space. Net adjustment: +$33,472.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $466,513

Adjusted -$21,055 for 78 sqft less living space and +$82,121 for being newer. Net adjustment: +$61,066.

6041 RONCHAMPS DR, ROUND ROCK, TX 78681
0.00 mi 98% similar Same subdivision
3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $168,718

Adjusted -$350,379 for 1,298 sqft less living space and -$37,328 for being older. Net adjustment: -$387,707.

The Neighborhood

This home is valued 13.4% below the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 6.9% over the past year.

R222592G - CAT HOLLOW ALL SECTIONS R4

typical
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$390,979
Median
$451,685

This home is -13.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,484 across all districts. With a homestead exemption claimed, that drops to $6,161 — saving $1,323 per year. That's $513 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%$3,492
Brushy Creek MUDMUD0.3868%$1,512
Williamson CountyCounty0.3694%$1,444
Austin Community Collegespecial0.1034%$404
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$391
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$7,484

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $426,717 would pay approximately $2,664 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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