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13128 MILL STONE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath1,380 sqftBuilt 1983

Property at a Glance

This home is estimated between $303,034 and $338,429, with a best estimate of $309,963. That places the property below the R350481H - Anderson Mill Village median of $347,704, in a neighborhood that declined 4.9% over the past year.

Estimated Value Range

$303,034 $338,429
Best Estimate
$309,963
WCAD Value
$327,045
High Confidence

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

Based on 5 comparable properties in R350481H - Anderson Mill Village, this home's estimated market value is between $303,034 and $338,429. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13126 MILL STONE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,312 sqft Built 1983
Raw Value $321,199
Adjusted Value $338,429

Adjusted +$17,230 for 68 sqft more living space. Net adjustment: +$17,230.

13124 MILL STONE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,512 sqft Built 1983
Raw Value $343,409
Adjusted Value $309,963

Adjusted -$33,446 for 132 sqft less living space. Net adjustment: -$33,446.

13152 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,465 sqft Built 1983
Raw Value $333,819
Adjusted Value $312,282

Adjusted -$21,537 for 85 sqft less living space. Net adjustment: -$21,537.

13147 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,512 sqft Built 1983
Raw Value $343,409
Adjusted Value $309,963

Adjusted -$33,446 for 132 sqft less living space. Net adjustment: -$33,446.

13149 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,524 sqft Built 1983
Raw Value $339,520
Adjusted Value $303,034

Adjusted -$36,486 for 144 sqft less living space. Net adjustment: -$36,486.

The Neighborhood

This home is valued 5.9% below the R350481H - Anderson Mill Village median of $347,704. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.9% over the past year.

R350481H - Anderson Mill Village

typical
247 Properties
$347,704 Median Value
-4.9% YoY Change
1% Have Pool
98% Have Garage
This Home
$327,045
Median
$347,704

This home is -5.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,788 across all districts. With a homestead exemption claimed, that drops to $5,135 — saving $1,653 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%$2,921
AustinCity0.5240%$1,714
Williamson CountyCounty0.3694%$1,208
Anderson Mill Limited Districtspecial0.1243%$407
Austin Community Collegespecial0.1034%$338
Williamson County FM/RdCounty0.0443%$145
Upper Brushy Creek WCIDWater0.0170%$56
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$6,788

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $309,963 would pay approximately $1,935 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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