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3422 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,944 sqftBuilt 2008

Property at a Glance

This home is estimated between $383,050 and $1,185,558, with a best estimate of $901,863. That places the property below the R147606C - WALSH RANCH median of $933,667, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$383,050 $1,185,558
Best Estimate
$901,863
WCAD Value
$786,131
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R147606C - WALSH RANCH. The estimated range of $383,050 and $1,185,558 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $383,050

Adjusted -$62,214 for 153 sqft less living space and -$111,161 for being older. Net adjustment: -$173,375.

3323 MARCASITE DR, ROUND ROCK, TX 78681
0.00 mi 97% similar Same subdivision
4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $1,185,558

Adjusted +$294,804 for 725 sqft more living space and -$13,895 for being older. Net adjustment: +$280,909.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $393,593

Adjusted -$67,500 for 166 sqft less living space and -$111,161 for being older. Net adjustment: -$178,661.

3 bed 2 bath 2,221 sqft Built 2014
Raw Value $741,595
Adjusted Value $1,118,956

Adjusted +$293,990 for 723 sqft more living space and +$83,371 for being newer. Net adjustment: +$377,361.

3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $901,863

Adjusted +$283,011 for 696 sqft more living space and +$138,951 for being newer. Net adjustment: +$421,962.

The Neighborhood

This home is valued 15.8% below the R147606C - WALSH RANCH median of $933,667. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.6% over the past year.

R147606C - WALSH RANCH

below average
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$786,131
Median
$933,667

This home is -15.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $14,722 across all districts. With a homestead exemption claimed, that drops to $13,327 — saving $1,395 per year. That's $1,111 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%$7,021
Williamson CountyCounty0.3694%$2,904
Walsh Ranch MUDMUD0.3455%$2,716
Austin Community Collegespecial0.1034%$813
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$786
Williamson County FM/RdCounty0.0443%$348
Upper Brushy Creek WCIDWater0.0170%$134
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$14,722

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $901,863 would pay approximately $5,629 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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