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3526 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed4 bath3,201 sqftBuilt 2009

Property at a Glance

This home is estimated between $473,658 and $1,514,004, with a best estimate of $1,175,298. 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

$473,658 $1,514,004
Best Estimate
$1,175,298
WCAD Value
$989,815
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 $473,658 and $1,514,004 should be treated as a rough guide.

Comparable Properties (5)

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 $1,276,165

Adjusted +$399,306 for 982 sqft more living space and -$27,790 for being older. Net adjustment: +$371,516.

5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,514,004

Adjusted +$199,247 for 490 sqft more living space and +$97,266 for being newer. Net adjustment: +$296,513.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $484,201

Adjusted +$37,003 for 91 sqft more living space and -$125,056 for being older. Net adjustment: -$88,053.

3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $473,658

Adjusted +$42,289 for 104 sqft more living space and -$125,056 for being older. Net adjustment: -$82,767.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $1,175,298

Adjusted +$425,737 for 1,047 sqft more living space and -$111,161 for being older. Net adjustment: +$314,576.

The Neighborhood

This home is valued 6.0% 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
$989,815
Median
$933,667

This home is +6.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $18,041 across all districts. With a homestead exemption claimed, that drops to $16,612 — saving $1,429 per year. That's $1,384 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%$8,603
Williamson CountyCounty0.3694%$3,559
Walsh Ranch MUDMUD0.3455%$3,328
Austin Community Collegespecial0.1034%$996
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$963
Williamson County FM/RdCounty0.0443%$427
Upper Brushy Creek WCIDWater0.0170%$164
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$18,041

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,175,298 would pay approximately $7,336 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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