Beta Williamson County, TX only — data and coverage are limited during early access.

11501 POWDER MILL TRL, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

3 bed2 bath692 sqftBuilt 1983

Property at a Glance

This home is estimated between $78,351 and $358,946, with a best estimate of $129,439. That places the property below the R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD median of $387,608, in a neighborhood that declined 7.3% over the past year.

Estimated Value Range

$78,351 $358,946
Best Estimate
$129,439
WCAD Value
$405,511
High Confidence

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

Based on 5 comparable properties in R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD, this home's estimated market value is between $78,351 and $358,946. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

11417 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 100% similar Same subdivision
4 bed 2 bath 916 sqft Built 1982
Raw Value $409,131
Adjusted Value $358,946

Adjusted -$55,176 for 224 sqft less living space and +$4,991 for being newer. Net adjustment: -$50,185.

11415 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 94% similar Same subdivision
3 bed 2 bath 1,712 sqft Built 1983
Raw Value $380,688
Adjusted Value $129,439

Adjusted -$251,249 for 1,020 sqft less living space. Net adjustment: -$251,249.

11503 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 93% similar Same subdivision
3 bed 2 bath 1,863 sqft Built 1982
Raw Value $393,006
Adjusted Value $109,554

Adjusted -$288,443 for 1,171 sqft less living space and +$4,991 for being newer. Net adjustment: -$283,452.

11505 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 92% similar Same subdivision
3 bed 2 bath 1,989 sqft Built 1982
Raw Value $392,840
Adjusted Value $78,351

Adjusted -$319,480 for 1,297 sqft less living space and +$4,991 for being newer. Net adjustment: -$314,489.

11518 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 92% similar Same subdivision
3 bed 2 bath 2,034 sqft Built 1982
Raw Value $542,953
Adjusted Value $217,380

Adjusted -$330,564 for 1,342 sqft less living space and +$4,991 for being newer. Net adjustment: -$325,573.

The Neighborhood

This home is valued 4.6% above the R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD median of $387,608. With 834 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 7.3% over the past year.

R3P5480G - Anderson Mill 12,16 - 20 - Partially in TCAD

typical
834 Properties
$387,608 Median Value
-7.3% YoY Change
2% Have Pool
97% Have Garage
This Home
$405,511
Median
$387,608

This home is +4.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,417 across all districts. With a homestead exemption claimed, that drops to $6,667 — saving $1,750 per year. That's $556 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%$3,622
AustinCity0.5240%$2,125
Williamson CountyCounty0.3694%$1,498
Anderson Mill Limited Districtspecial0.1243%$504
Austin Community Collegespecial0.1034%$419
Williamson County FM/RdCounty0.0443%$180
Upper Brushy Creek WCIDWater0.0170%$69
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$8,417

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $129,439 would pay approximately $808 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.

View full property details