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3878 WILLIE MAYS LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,850 sqftBuilt 2001

Property at a Glance

This home is estimated between $332,224 and $478,821, with a best estimate of $347,098. That places the property above the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$332,224 $478,821
Best Estimate
$347,098
WCAD Value
$332,247
High Confidence

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

Based on 5 comparable properties in R454400F - Ryan's Crossing Sec 1 Thru 6, this home's estimated market value is between $332,224 and $478,821. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3809 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,107 sqft Built 2001
Raw Value $340,367
Adjusted Value $478,821

Adjusted +$138,454 for 743 sqft more living space. Net adjustment: +$138,454.

3842 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,295 sqft Built 2001
Raw Value $342,464
Adjusted Value $445,885

Adjusted +$103,421 for 555 sqft more living space. Net adjustment: +$103,421.

3844 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,788 sqft Built 2002
Raw Value $334,593
Adjusted Value $347,098

Adjusted +$11,553 for 62 sqft more living space and +$952 for being newer. Net adjustment: +$12,505.

3865 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,849 sqft Built 2001
Raw Value $332,038
Adjusted Value $332,224

Adjusted +$186 for 1 sqft more living space. Net adjustment: +$186.

3859 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,849 sqft Built 2001
Raw Value $336,773
Adjusted Value $336,959

Adjusted +$186 for 1 sqft more living space. Net adjustment: +$186.

The Neighborhood

This home is valued 2.3% below the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.

R454400F - Ryan's Crossing Sec 1 Thru 6

typical
567 Properties
$339,919 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$332,247
Median
$339,919

This home is -2.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,978 across all districts. With a homestead exemption claimed, that drops to $4,666 — saving $1,312 per year. That's $389 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%$2,967
Round RockCity0.3720%$1,236
Williamson CountyCounty0.3694%$1,227
Austin Community Collegespecial0.1034%$344
Williamson County FM/RdCounty0.0443%$147
Upper Brushy Creek WCIDWater0.0170%$56
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,978

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $347,098 would pay approximately $2,167 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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