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3945 VALLARTA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,058 sqftBuilt 2006

Property at a Glance

This home is estimated between $341,009 and $822,872, with a best estimate of $647,675. 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

$341,009 $822,872
Best Estimate
$647,675
WCAD Value
$638,711
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 $341,009 and $822,872. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3941 VALLARTA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,740 sqft Built 2006
Raw Value $557,478
Adjusted Value $646,133

Adjusted +$88,655 for 318 sqft more living space. Net adjustment: +$88,655.

3949 VALLARTA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,499 sqft Built 2006
Raw Value $667,029
Adjusted Value $822,872

Adjusted +$155,843 for 559 sqft more living space. Net adjustment: +$155,843.

3937 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,900 sqft Built 2005
Raw Value $575,478
Adjusted Value $341,009

Adjusted -$234,740 for 842 sqft less living space and +$271 for being newer. Net adjustment: -$234,469.

3938 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,863 sqft Built 2007
Raw Value $593,582
Adjusted Value $647,675

Adjusted +$54,364 for 195 sqft more living space and -$271 for being older. Net adjustment: +$54,093.

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 $651,475

Adjusted +$88,655 for 318 sqft more living space. Net adjustment: +$88,655.

The Neighborhood

This home is valued 25.0% 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
$638,711
Median
$510,992

This home is +25.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,492 across all districts. With a homestead exemption claimed, that drops to $10,124 — saving $1,368 per year. That's $844 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%$5,704
Round RockCity0.3720%$2,376
Williamson CountyCounty0.3694%$2,360
Austin Community Collegespecial0.1034%$660
Williamson County FM/RdCounty0.0443%$283
Upper Brushy Creek WCIDWater0.0170%$109
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,492

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $647,675 would pay approximately $4,043 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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