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13139 MILL STONE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath756 sqftBuilt 1983

Property at a Glance

This home is estimated between $180,322 and $356,108, with a best estimate of $228,403. 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

$180,322 $356,108
Best Estimate
$228,403
WCAD Value
$343,175
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 $180,322 and $356,108. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13137 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 $180,322

Adjusted -$140,877 for 556 sqft less living space. Net adjustment: -$140,877.

13143 MILL STONE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 765 sqft Built 1983
Raw Value $358,388
Adjusted Value $356,108

Adjusted -$2,280 for 9 sqft less living space. Net adjustment: -$2,280.

13145 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 852 sqft Built 1983
Raw Value $360,056
Adjusted Value $335,732

Adjusted -$24,324 for 96 sqft less living space. Net adjustment: -$24,324.

13126 MILL STONE DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
3 bed 2 bath 1,312 sqft Built 1983
Raw Value $321,199
Adjusted Value $180,322

Adjusted -$140,877 for 556 sqft less living space. Net adjustment: -$140,877.

13129 MILL STONE DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
3 bed 2 bath 1,232 sqft Built 1983
Raw Value $349,010
Adjusted Value $228,403

Adjusted -$120,607 for 476 sqft less living space. Net adjustment: -$120,607.

The Neighborhood

This home is valued 1.3% 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
$343,175
Median
$347,704

This home is -1.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,123 across all districts. With a homestead exemption claimed, that drops to $5,450 — saving $1,673 per year. That's $454 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%$3,065
AustinCity0.5240%$1,798
Williamson CountyCounty0.3694%$1,268
Anderson Mill Limited Districtspecial0.1243%$427
Austin Community Collegespecial0.1034%$355
Williamson County FM/RdCounty0.0443%$152
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$7,123

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $228,403 would pay approximately $1,426 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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