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3522 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,427 sqftBuilt 2009

Property at a Glance

This home is estimated between $839,273 and $1,021,972, with a best estimate of $883,838. 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

$839,273 $1,021,972
Best Estimate
$883,838
WCAD Value
$973,542
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 $839,273 and $1,021,972 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 $961,437

Adjusted +$84,578 for 208 sqft more living space and -$27,790 for being older. Net adjustment: +$56,788.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $860,570

Adjusted +$111,009 for 273 sqft more living space and -$111,161 for being older. Net adjustment: -$152.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $839,273

Adjusted +$207,786 for 511 sqft more living space and +$69,476 for being newer. Net adjustment: +$277,262.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $883,838

Adjusted +$207,786 for 511 sqft more living space and +$97,266 for being newer. Net adjustment: +$305,052.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $1,021,972

Adjusted +$250,481 for 616 sqft more living space and +$69,476 for being newer. Net adjustment: +$319,957.

The Neighborhood

This home is valued 4.3% 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
$973,542
Median
$933,667

This home is +4.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,232 across all districts. With a homestead exemption claimed, that drops to $16,802 — saving $1,430 per year. That's $1,400 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%$8,695
Williamson CountyCounty0.3694%$3,597
Walsh Ranch MUDMUD0.3455%$3,364
Austin Community Collegespecial0.1034%$1,007
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$974
Williamson County FM/RdCounty0.0443%$432
Upper Brushy Creek WCIDWater0.0170%$166
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$18,232

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $883,838 would pay approximately $5,517 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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