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3100 ANSONIA TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,124 sqftBuilt 2004

Property at a Glance

This home is estimated between $340,924 and $527,369, with a best estimate of $407,833. 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

$340,924 $527,369
Best Estimate
$407,833
WCAD Value
$551,121
Low Confidence

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

There are 5 comparable properties within range, but none are in R222592G - CAT HOLLOW ALL SECTIONS R4. The estimated range of $340,924 and $527,369 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,187 sqft Built 2003
Raw Value $472,820
Adjusted Value $463,280

Adjusted -$17,006 for 63 sqft less living space and +$7,466 for being newer. Net adjustment: -$9,540.

3 bed 2 bath 2,418 sqft Built 2004
Raw Value $487,195
Adjusted Value $407,833

Adjusted -$79,362 for 294 sqft less living space. Net adjustment: -$79,362.

3 bed 2 bath 1,977 sqft Built 2004
Raw Value $487,688
Adjusted Value $527,369

Adjusted +$39,681 for 147 sqft more living space. Net adjustment: +$39,681.

3 bed 2 bath 2,257 sqft Built 2002
Raw Value $382,269
Adjusted Value $361,298

Adjusted -$35,902 for 133 sqft less living space and +$14,931 for being newer. Net adjustment: -$20,971.

3 bed 2 bath 2,208 sqft Built 2006
Raw Value $378,530
Adjusted Value $340,924

Adjusted -$22,675 for 84 sqft less living space and -$14,931 for being older. Net adjustment: -$37,606.

The Neighborhood

This home is valued 22.0% above the R222592G - CAT HOLLOW ALL SECTIONS R4 median of $451,685. With 1,233 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.9% over the past year.

R222592G - CAT HOLLOW ALL SECTIONS R4

above average
1,233 Properties
$451,685 Median Value
-6.9% YoY Change
1% Have Pool
100% Have Garage
This Home
$551,121
Median
$451,685

This home is +22.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,549 across all districts. With a homestead exemption claimed, that drops to $9,197 — saving $1,352 per year. That's $766 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%$4,922
Brushy Creek MUDMUD0.3868%$2,132
Williamson CountyCounty0.3694%$2,036
Austin Community Collegespecial0.1034%$570
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$551
Williamson County FM/RdCounty0.0443%$244
Upper Brushy Creek WCIDWater0.0170%$94
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$10,549

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $407,833 would pay approximately $2,546 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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