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3427 TOURMALINE TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,138 sqftBuilt 2010

Property at a Glance

This home is estimated between $792,383 and $973,573, with a best estimate of $899,517. 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

$792,383 $973,573
Best Estimate
$899,517
WCAD Value
$895,233
High Confidence

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

Based on 5 comparable properties in R147606C - WALSH RANCH, this home's estimated market value is between $792,383 and $973,573. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3409 TOURMALINE TRL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,684 sqft Built 2008
Raw Value $1,080,042
Adjusted Value $830,234

Adjusted -$222,018 for 546 sqft less living space and -$27,790 for being older. Net adjustment: -$249,808.

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 $899,517

Adjusted -$182,168 for 448 sqft less living space and -$27,790 for being older. Net adjustment: -$209,958.

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 $792,383

Adjusted -$108,162 for 266 sqft less living space and -$13,895 for being older. Net adjustment: -$122,057.

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 $973,573

Adjusted +$46,762 for 115 sqft more living space and -$13,895 for being older. Net adjustment: +$32,867.

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 $908,347

Adjusted -$109,789 for 270 sqft less living space and -$27,790 for being older. Net adjustment: -$137,579.

The Neighborhood

This home is valued 4.1% below the R147606C - WALSH RANCH median of $933,667. That positions it competitively for buyers comparing within the neighborhood. 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
$895,233
Median
$933,667

This home is -4.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $16,766 across all districts. With a homestead exemption claimed, that drops to $15,350 — saving $1,416 per year. That's $1,279 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%$7,995
Williamson CountyCounty0.3694%$3,307
Walsh Ranch MUDMUD0.3455%$3,093
Austin Community Collegespecial0.1034%$926
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$895
Williamson County FM/RdCounty0.0443%$397
Upper Brushy Creek WCIDWater0.0170%$152
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$16,766

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $899,517 would pay approximately $5,615 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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