Beta Williamson County, TX only — data and coverage are limited during early access.

3419 TOURMALINE TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed4 bath2,603 sqftBuilt 2008

Property at a Glance

This home is estimated between $1,009,253 and $1,190,444, with a best estimate of $1,116,388. 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

$1,009,253 $1,190,444
Best Estimate
$1,116,388
WCAD Value
$1,081,123
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 $1,009,253 and $1,190,444. 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 $1,047,105

Adjusted -$32,937 for 81 sqft less living space. Net adjustment: -$32,937.

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 $1,116,388

Adjusted +$6,913 for 17 sqft more living space. Net adjustment: +$6,913.

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 $1,009,253

Adjusted +$80,918 for 199 sqft more living space and +$13,895 for being newer. Net adjustment: +$94,813.

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 $1,190,444

Adjusted +$235,843 for 580 sqft more living space and +$13,895 for being newer. Net adjustment: +$249,738.

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 $1,125,218

Adjusted +$79,292 for 195 sqft more living space. Net adjustment: +$79,292.

The Neighborhood

This home is valued 15.8% 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
$1,081,123
Median
$933,667

This home is +15.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $19,112 across all districts. With a homestead exemption claimed, that drops to $17,674 — saving $1,438 per year. That's $1,473 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%$9,114
Williamson CountyCounty0.3694%$3,770
Walsh Ranch MUDMUD0.3455%$3,526
Austin Community Collegespecial0.1034%$1,055
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$1,021
Williamson County FM/RdCounty0.0443%$452
Upper Brushy Creek WCIDWater0.0170%$173
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8728%$19,112

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $1,116,388 would pay approximately $6,968 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.

View full property details