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11508 POWDER MILL TRL, AUSTIN, TX 78750

AUSTIN, 78750 — williamson County

4 bed2 bath1,106 sqftBuilt 1982

Property at a Glance

This home is estimated between $206,540 and $455,932, with a best estimate of $330,984. 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

$206,540 $455,932
Best Estimate
$330,984
WCAD Value
$493,978
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $206,540 and $455,932. More comparables in the same subdivision would strengthen this estimate.

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 $455,932

Adjusted +$46,801 for 190 sqft more living space. Net adjustment: +$46,801.

11415 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,712 sqft Built 1983
Raw Value $380,688
Adjusted Value $226,426

Adjusted -$149,271 for 606 sqft less living space and -$4,991 for being older. Net adjustment: -$154,262.

3 bed 2 bath 1,130 sqft Built 1975
Raw Value $310,049
Adjusted Value $339,073

Adjusted -$5,912 for 24 sqft less living space and +$34,936 for being newer. Net adjustment: +$29,024.

11503 POWDER MILL TRL, AUSTIN, TX 78750
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,863 sqft Built 1982
Raw Value $393,006
Adjusted Value $206,540

Adjusted -$186,466 for 757 sqft less living space. Net adjustment: -$186,466.

3 bed 2 bath 1,050 sqft Built 1975
Raw Value $282,254
Adjusted Value $330,984

Adjusted +$13,794 for 56 sqft more living space and +$34,936 for being newer. Net adjustment: +$48,730.

The Neighborhood

This home is valued 27.4% 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

above average
834 Properties
$387,608 Median Value
-7.3% YoY Change
2% Have Pool
97% Have Garage
This Home
$493,978
Median
$387,608

This home is +27.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,253 across all districts. With a homestead exemption claimed, that drops to $8,394 — saving $1,859 per year. That's $700 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%$4,412
AustinCity0.5240%$2,589
Williamson CountyCounty0.3694%$1,825
Anderson Mill Limited Districtspecial0.1243%$614
Austin Community Collegespecial0.1034%$511
Williamson County FM/RdCounty0.0443%$219
Upper Brushy Creek WCIDWater0.0170%$84
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0756%$10,253

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $330,984 would pay approximately $2,066 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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