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

12403 TREE LINE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed4 bath2,185 sqftBuilt 1981

Property at a Glance

This home is estimated between $418,035 and $474,836, with a best estimate of $459,845. 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

$418,035 $474,836
Best Estimate
$459,845
WCAD Value
$411,893
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 $418,035 and $474,836. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12405 TREE LINE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 4 bath 1,770 sqft Built 1981
Raw Value $377,447
Adjusted Value $464,891

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

12401 TREE LINE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 4 bath 1,992 sqft Built 1982
Raw Value $402,579
Adjusted Value $439,113

Adjusted +$40,667 for 193 sqft more living space and -$4,133 for being older. Net adjustment: +$36,534.

8703 PINEY POINT DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 4 bath 1,848 sqft Built 1982
Raw Value $392,969
Adjusted Value $459,845

Adjusted +$71,009 for 337 sqft more living space and -$4,133 for being older. Net adjustment: +$66,876.

8705 PINEY POINT DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 4 bath 1,692 sqft Built 1982
Raw Value $375,090
Adjusted Value $474,836

Adjusted +$103,879 for 493 sqft more living space and -$4,133 for being older. Net adjustment: +$99,746.

8701 PINEY POINT DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 4 bath 2,260 sqft Built 1982
Raw Value $437,971
Adjusted Value $418,035

Adjusted -$15,803 for 75 sqft less living space and -$4,133 for being older. Net adjustment: -$19,936.

The Neighborhood

This home is valued 1.8% below the R371X - Round Rock West Below 45 - Duplex median of $419,343. That positions it competitively for buyers comparing within the neighborhood. 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
$411,893
Median
$419,343

This home is -1.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,037 across all districts. With a homestead exemption claimed, that drops to $6,279 — saving $1,758 per year. That's $523 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%$3,679
AustinCity0.5240%$2,158
Williamson CountyCounty0.3694%$1,522
Austin Community Collegespecial0.1034%$426
Williamson County FM/RdCounty0.0443%$183
Upper Brushy Creek WCIDWater0.0170%$70
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$8,037

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $459,845 would pay approximately $2,870 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