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12504 TREE LINE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath2,185 sqftBuilt 1981

Property at a Glance

This home is estimated between $411,893 and $475,707, with a best estimate of $457,785. That places the property above the R371X - Round Rock West Below 45 - Duplex median of $419,343, in a neighborhood that declined 8.8% over the past year.

Estimated Value Range

$411,893 $475,707
Best Estimate
$457,785
WCAD Value
$416,157
High Confidence

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

Based on 5 comparable properties in R371X - Round Rock West Below 45 - Duplex, this home's estimated market value is between $411,893 and $475,707. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12502 TREE LINE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,781 sqft Built 1981
Raw Value $375,239
Adjusted Value $460,365

Adjusted +$85,126 for 404 sqft more living space. Net adjustment: +$85,126.

12500 TREE LINE DR #A/B, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,666 sqft Built 1981
Raw Value $366,350
Adjusted Value $475,707

Adjusted +$109,357 for 519 sqft more living space. Net adjustment: +$109,357.

12505 A TREE LINE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
3 bed 4 bath 1,770 sqft Built 1981
Raw Value $370,341
Adjusted Value $457,785

Adjusted +$87,444 for 415 sqft more living space. Net adjustment: +$87,444.

12503 TREE LINE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
4 bed 4 bath 2,185 sqft Built 1981
Raw Value $418,999
Adjusted Value $418,999

This comparable closely matches the subject property's features.

12406 TREE LINE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,185 sqft Built 1981
Raw Value $411,893
Adjusted Value $411,893

This comparable closely matches the subject property's features.

The Neighborhood

This home is in line with the R371X - Round Rock West Below 45 - Duplex median of $419,343. Note that values in this subdivision declined 8.8% over the past year.

R371X - Round Rock West Below 45 - Duplex

typical
462 Properties
$419,343 Median Value
-8.8% YoY Change
0% Have Pool
94% Have Garage
This Home
$416,157
Median
$419,343

This home is -0.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,120 across all districts. With a homestead exemption claimed, that drops to $6,357 — saving $1,763 per year. That's $530 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%$3,717
AustinCity0.5240%$2,181
Williamson CountyCounty0.3694%$1,537
Austin Community Collegespecial0.1034%$430
Williamson County FM/RdCounty0.0443%$184
Upper Brushy Creek WCIDWater0.0170%$71
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$8,120

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $457,785 would pay approximately $2,857 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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