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

3933 VALLARTA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,917 sqftBuilt 2006

Property at a Glance

This home is estimated between $301,699 and $727,261, with a best estimate of $612,166. 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

$301,699 $727,261
Best Estimate
$612,166
WCAD Value
$626,336
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 $301,699 and $727,261. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3929 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,467 sqft Built 2006
Raw Value $601,806
Adjusted Value $727,261

Adjusted +$125,455 for 450 sqft more living space. Net adjustment: +$125,455.

3937 VALLARTA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,900 sqft Built 2005
Raw Value $575,478
Adjusted Value $301,699

Adjusted -$274,050 for 983 sqft less living space and +$271 for being newer. Net adjustment: -$273,779.

3925 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,992 sqft Built 2006
Raw Value $682,440
Adjusted Value $661,531

Adjusted -$20,909 for 75 sqft less living space. Net adjustment: -$20,909.

3941 VALLARTA LN, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,740 sqft Built 2006
Raw Value $557,478
Adjusted Value $606,824

Adjusted +$49,346 for 177 sqft more living space. Net adjustment: +$49,346.

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 $612,166

Adjusted +$49,346 for 177 sqft more living space. Net adjustment: +$49,346.

The Neighborhood

This home is valued 22.6% 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
$626,336
Median
$510,992

This home is +22.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,270 across all districts. With a homestead exemption claimed, that drops to $9,903 — saving $1,367 per year. That's $825 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%$5,594
Round RockCity0.3720%$2,330
Williamson CountyCounty0.3694%$2,314
Austin Community Collegespecial0.1034%$648
Williamson County FM/RdCounty0.0443%$278
Upper Brushy Creek WCIDWater0.0170%$106
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,270

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $612,166 would pay approximately $3,821 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