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3942 VALLARTA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,943 sqftBuilt 2006

Property at a Glance

This home is estimated between $362,355 and $790,811, with a best estimate of $615,614. That places the property above the L498506D - VILLAGE AT MAYFIELD median of $510,992, in a neighborhood that declined 5.8% over the past year.

Estimated Value Range

$362,355 $790,811
Best Estimate
$615,614
WCAD Value
$644,675
High Confidence

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

Based on 5 comparable properties in L498506D - VILLAGE AT MAYFIELD, this home's estimated market value is between $362,355 and $790,811. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3946 VALLARTA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,328 sqft Built 2006
Raw Value $469,689
Adjusted Value $362,355

Adjusted -$107,334 for 385 sqft less living space. Net adjustment: -$107,334.

3938 VALLARTA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,863 sqft Built 2007
Raw Value $593,582
Adjusted Value $615,614

Adjusted +$22,303 for 80 sqft more living space and -$271 for being older. Net adjustment: +$22,032.

3934 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,740 sqft Built 2006
Raw Value $562,820
Adjusted Value $619,414

Adjusted +$56,594 for 203 sqft more living space. Net adjustment: +$56,594.

3930 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,200 sqft Built 2005
Raw Value $437,581
Adjusted Value $366,203

Adjusted -$71,649 for 257 sqft less living space and +$271 for being newer. Net adjustment: -$71,378.

3949 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,499 sqft Built 2006
Raw Value $667,029
Adjusted Value $790,811

Adjusted +$123,782 for 444 sqft more living space. Net adjustment: +$123,782.

The Neighborhood

This home is valued 26.2% above the L498506D - VILLAGE AT MAYFIELD median of $510,992. With 696 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.8% over the past year.

L498506D - VILLAGE AT MAYFIELD

above average
696 Properties
$510,992 Median Value
-5.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$644,675
Median
$510,992

This home is +26.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,599 across all districts. With a homestead exemption claimed, that drops to $10,230 — saving $1,369 per year. That's $853 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%$5,758
Round RockCity0.3720%$2,398
Williamson CountyCounty0.3694%$2,382
Austin Community Collegespecial0.1034%$667
Williamson County FM/RdCounty0.0443%$286
Upper Brushy Creek WCIDWater0.0170%$110
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,599

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $615,614 would pay approximately $3,843 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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