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3409 TOURMALINE TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,684 sqftBuilt 2008

Property at a Glance

This home is estimated between $425,978 and $1,223,381, with a best estimate of $1,149,324. 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

$425,978 $1,223,381
Best Estimate
$1,149,324
WCAD Value
$1,080,042
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $425,978 and $1,223,381. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4 bed 3 bath 2,789 sqft Built 2003
Raw Value $538,150
Adjusted Value $425,978

Adjusted -$42,696 for 105 sqft less living space and -$69,476 for being older. Net adjustment: -$112,172.

3440 TOURMALINE TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,586 sqft Built 2008
Raw Value $1,109,475
Adjusted Value $1,149,324

Adjusted +$39,849 for 98 sqft more living space. Net adjustment: +$39,849.

3423 TOURMALINE TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,404 sqft Built 2009
Raw Value $914,440
Adjusted Value $1,042,190

Adjusted +$113,855 for 280 sqft more living space and +$13,895 for being newer. Net adjustment: +$127,750.

3428 TOURMALINE TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,023 sqft Built 2009
Raw Value $940,706
Adjusted Value $1,223,381

Adjusted +$268,780 for 661 sqft more living space and +$13,895 for being newer. Net adjustment: +$282,675.

3448 TOURMALINE TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,408 sqft Built 2008
Raw Value $1,045,926
Adjusted Value $1,158,155

Adjusted +$112,229 for 276 sqft more living space. Net adjustment: +$112,229.

The Neighborhood

This home is valued 15.7% 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

above average
239 Properties
$933,667 Median Value
-4.6% YoY Change
0% Have Pool
100% Have Garage
This Home
$1,080,042
Median
$933,667

This home is +15.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $19,137 across all districts. With a homestead exemption claimed, that drops to $17,698 — saving $1,439 per year. That's $1,475 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%$9,126
Williamson CountyCounty0.3694%$3,775
Walsh Ranch MUDMUD0.3455%$3,530
Austin Community Collegespecial0.1034%$1,057
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,022
Williamson County FM/RdCounty0.0443%$453
Upper Brushy Creek WCIDWater0.0170%$174
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$19,137

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,149,324 would pay approximately $7,174 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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