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3409 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,530 sqftBuilt 2007

Property at a Glance

This home is estimated between $908,945 and $1,091,645, with a best estimate of $953,510. That places the property above the R147606C - WALSH RANCH median of $933,667, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$908,945 $1,091,645
Best Estimate
$953,510
WCAD Value
$1,070,533
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 $908,945 and $1,091,645 should be treated as a rough guide.

Comparable Properties (5)

3323 MARCASITE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $1,031,110

Adjusted +$126,461 for 311 sqft more living space. Net adjustment: +$126,461.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $930,242

Adjusted +$152,891 for 376 sqft more living space and -$83,371 for being older. Net adjustment: +$69,520.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $908,945

Adjusted +$249,668 for 614 sqft more living space and +$97,266 for being newer. Net adjustment: +$346,934.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $953,510

Adjusted +$249,668 for 614 sqft more living space and +$125,056 for being newer. Net adjustment: +$374,724.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $1,091,645

Adjusted +$292,364 for 719 sqft more living space and +$97,266 for being newer. Net adjustment: +$389,630.

The Neighborhood

This home is valued 14.7% above the R147606C - WALSH RANCH median of $933,667. With 239 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 4.6% over the past year.

R147606C - WALSH RANCH

typical
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$1,070,533
Median
$933,667

This home is +14.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,955 across all districts. With a homestead exemption claimed, that drops to $17,517 — saving $1,438 per year. That's $1,460 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%$9,039
Williamson CountyCounty0.3694%$3,739
Walsh Ranch MUDMUD0.3455%$3,497
Austin Community Collegespecial0.1034%$1,047
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,012
Williamson County FM/RdCounty0.0443%$449
Upper Brushy Creek WCIDWater0.0170%$172
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$18,955

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $953,510 would pay approximately $5,952 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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