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3877 WILLIE MAYS LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,057 sqftBuilt 2001

Property at a Glance

This home is estimated between $199,327 and $357,069, with a best estimate of $331,050. That places the property below 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

$199,327 $357,069
Best Estimate
$331,050
WCAD Value
$358,302
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 $199,327 and $357,069. 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 $331,050

Adjusted -$9,317 for 50 sqft less living space. Net adjustment: -$9,317.

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 $298,114

Adjusted -$44,350 for 238 sqft less living space. Net adjustment: -$44,350.

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 $199,327

Adjusted -$136,218 for 731 sqft less living space and +$952 for being newer. Net adjustment: -$135,266.

3876 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 978 sqft Built 2002
Raw Value $341,396
Adjusted Value $357,069

Adjusted +$14,721 for 79 sqft more living space and +$952 for being newer. Net adjustment: +$15,673.

3884 WILLIE MAYS LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,049 sqft Built 2001
Raw Value $352,960
Adjusted Value $354,451

Adjusted +$1,491 for 8 sqft more living space. Net adjustment: +$1,491.

The Neighborhood

This home is valued 5.4% above the R454400F - Ryan's Crossing Sec 1 Thru 6 median of $339,919. With 567 homes in the subdivision, the property sits in the upper tier. 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
$358,302
Median
$339,919

This home is +5.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,447 across all districts. With a homestead exemption claimed, that drops to $5,130 — saving $1,317 per year. That's $428 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%$3,200
Round RockCity0.3720%$1,333
Williamson CountyCounty0.3694%$1,324
Austin Community Collegespecial0.1034%$370
Williamson County FM/RdCounty0.0443%$159
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,447

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $331,050 would pay approximately $2,066 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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