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12805 SPILLWAY DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath1,270 sqftBuilt 1982

Property at a Glance

This home is estimated between $266,890 and $444,324, with a best estimate of $335,128. 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

$266,890 $444,324
Best Estimate
$335,128
WCAD Value
$322,189
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 $266,890 and $444,324. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12803 SPILLWAY DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 829 sqft Built 1984
Raw Value $332,339
Adjusted Value $444,324

Adjusted +$111,739 for 441 sqft more living space and +$246 for being newer. Net adjustment: +$111,985.

9815 MEADOWHEATH DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,424 sqft Built 1982
Raw Value $408,008
Adjusted Value $368,988

Adjusted -$39,020 for 154 sqft less living space. Net adjustment: -$39,020.

9813 MEADOWHEATH DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,587 sqft Built 1982
Raw Value $347,210
Adjusted Value $266,890

Adjusted -$80,320 for 317 sqft less living space. Net adjustment: -$80,320.

12806 SPILLWAY DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 3 bath 1,290 sqft Built 1982
Raw Value $325,981
Adjusted Value $320,913

Adjusted -$5,068 for 20 sqft less living space. Net adjustment: -$5,068.

12808 SPILLWAY DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 3 bath 1,324 sqft Built 1982
Raw Value $348,810
Adjusted Value $335,128

Adjusted -$13,682 for 54 sqft less living space. Net adjustment: -$13,682.

The Neighborhood

This home is valued 7.3% 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
$322,189
Median
$347,704

This home is -7.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,687 across all districts. With a homestead exemption claimed, that drops to $5,040 — saving $1,647 per year. That's $420 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%$2,877
AustinCity0.5240%$1,688
Williamson CountyCounty0.3694%$1,190
Anderson Mill Limited Districtspecial0.1243%$401
Austin Community Collegespecial0.1034%$333
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$6,687

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $335,128 would pay approximately $2,092 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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