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3413 AQUAMARINE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

5 bed5 bath2,664 sqftBuilt 2007

Property at a Glance

This home is estimated between $293,633 and $1,323,436, with a best estimate of $984,730. 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

$293,633 $1,323,436
Best Estimate
$984,730
WCAD Value
$1,074,938
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 $293,633 and $1,323,436 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 $1,085,597

Adjusted +$180,948 for 445 sqft more living space. Net adjustment: +$180,948.

5 bed 5 bath 2,711 sqft Built 2016
Raw Value $1,217,491
Adjusted Value $1,323,436

Adjusted -$19,111 for 47 sqft less living space and +$125,056 for being newer. Net adjustment: +$105,945.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $984,730

Adjusted +$207,379 for 510 sqft more living space and -$83,371 for being older. Net adjustment: +$124,008.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $293,633

Adjusted -$181,355 for 446 sqft less living space and -$97,266 for being older. Net adjustment: -$278,621.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $963,433

Adjusted +$304,156 for 748 sqft more living space and +$97,266 for being newer. Net adjustment: +$401,422.

The Neighborhood

This home is valued 15.1% 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
$1,074,938
Median
$933,667

This home is +15.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $20,131 across all districts. With a homestead exemption claimed, that drops to $18,682 — saving $1,449 per year. That's $1,557 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%$9,600
Williamson CountyCounty0.3694%$3,971
Walsh Ranch MUDMUD0.3455%$3,714
Austin Community Collegespecial0.1034%$1,111
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,075
Williamson County FM/RdCounty0.0443%$477
Upper Brushy Creek WCIDWater0.0170%$183
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$20,131

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $984,730 would pay approximately $6,147 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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