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13135 MILL STONE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath1,447 sqftBuilt 1983

Property at a Glance

This home is estimated between $336,544 and $405,376, with a best estimate of $388,276. That places the property above the R350481H - Anderson Mill Village median of $347,704, in a neighborhood that declined 4.9% over the past year.

Estimated Value Range

$336,544 $405,376
Best Estimate
$388,276
WCAD Value
$341,678
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 $336,544 and $405,376. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $336,544

Adjusted +$6,841 for 27 sqft more living space. Net adjustment: +$6,841.

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 $355,405

Adjusted +$34,206 for 135 sqft more living space. Net adjustment: +$34,206.

13131 MILL STONE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,332 sqft Built 1983
Raw Value $359,138
Adjusted Value $388,276

Adjusted +$29,138 for 115 sqft more living space. Net adjustment: +$29,138.

13129 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,232 sqft Built 1983
Raw Value $349,010
Adjusted Value $403,486

Adjusted +$54,476 for 215 sqft more living space. Net adjustment: +$54,476.

13141 MILL STONE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
2 bed 2 bath 1,389 sqft Built 1983
Raw Value $390,680
Adjusted Value $405,376

Adjusted +$14,696 for 58 sqft more living space. Net adjustment: +$14,696.

The Neighborhood

This home is valued 1.7% 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
$341,678
Median
$347,704

This home is -1.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,092 across all districts. With a homestead exemption claimed, that drops to $5,420 — saving $1,672 per year. That's $452 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%$3,052
AustinCity0.5240%$1,790
Williamson CountyCounty0.3694%$1,262
Anderson Mill Limited Districtspecial0.1243%$425
Austin Community Collegespecial0.1034%$353
Williamson County FM/RdCounty0.0443%$151
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$7,092

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $388,276 would pay approximately $2,424 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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