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13131 MILL STONE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath1,332 sqftBuilt 1983

Property at a Glance

This home is estimated between $307,406 and $374,348, with a best estimate of $320,177. 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

$307,406 $374,348
Best Estimate
$320,177
WCAD Value
$359,138
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 $307,406 and $374,348. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13129 MILL STONE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,232 sqft Built 1983
Raw Value $349,010
Adjusted Value $374,348

Adjusted +$25,338 for 100 sqft more living space. Net adjustment: +$25,338.

13133 MILL STONE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,420 sqft Built 1983
Raw Value $329,703
Adjusted Value $307,406

Adjusted -$22,297 for 88 sqft less living space. Net adjustment: -$22,297.

13127 MILL STONE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
2 bed 2 bath 1,380 sqft Built 1983
Raw Value $332,339
Adjusted Value $320,177

Adjusted -$12,162 for 48 sqft less living space. Net adjustment: -$12,162.

13135 MILL STONE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,447 sqft Built 1983
Raw Value $341,678
Adjusted Value $312,540

Adjusted -$29,138 for 115 sqft less living space. Net adjustment: -$29,138.

13137 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,312 sqft Built 1983
Raw Value $321,199
Adjusted Value $326,267

Adjusted +$5,068 for 20 sqft more living space. Net adjustment: +$5,068.

The Neighborhood

This home is valued 3.3% above the R350481H - Anderson Mill Village median of $347,704. With 247 homes in the subdivision, the property sits in the upper tier. 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
$359,138
Median
$347,704

This home is +3.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,454 across all districts. With a homestead exemption claimed, that drops to $5,761 — saving $1,693 per year. That's $480 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%$3,207
AustinCity0.5240%$1,882
Williamson CountyCounty0.3694%$1,327
Anderson Mill Limited Districtspecial0.1243%$447
Austin Community Collegespecial0.1034%$371
Williamson County FM/RdCounty0.0443%$159
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$7,454

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $320,177 would pay approximately $1,999 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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