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3530 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,600 sqftBuilt 2006

Property at a Glance

This home is estimated between $281,504 and $1,073,468, with a best estimate of $972,601. 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

$281,504 $1,073,468
Best Estimate
$972,601
WCAD Value
$1,225,891
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 $281,504 and $1,073,468 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 $1,073,468

Adjusted +$154,924 for 381 sqft more living space and +$13,895 for being newer. Net adjustment: +$168,819.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $972,601

Adjusted +$181,355 for 446 sqft more living space and -$69,476 for being older. Net adjustment: +$111,879.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $951,304

Adjusted +$278,132 for 684 sqft more living space and +$111,161 for being newer. Net adjustment: +$389,293.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $281,504

Adjusted -$207,379 for 510 sqft less living space and -$83,371 for being older. Net adjustment: -$290,750.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $995,869

Adjusted +$278,132 for 684 sqft more living space and +$138,951 for being newer. Net adjustment: +$417,083.

The Neighborhood

This home is valued 31.3% 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

above average
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$1,225,891
Median
$933,667

This home is +31.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $21,537 across all districts. With a homestead exemption claimed, that drops to $20,074 — saving $1,463 per year. That's $1,673 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%$10,271
Williamson CountyCounty0.3694%$4,249
Walsh Ranch MUDMUD0.3455%$3,973
Austin Community Collegespecial0.1034%$1,189
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,150
Williamson County FM/RdCounty0.0443%$510
Upper Brushy Creek WCIDWater0.0170%$196
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$21,537

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $972,601 would pay approximately $6,071 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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