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8401 CAHILL DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath2,386 sqftBuilt 1999

Property at a Glance

This home is estimated between $664,932 and $818,043, with a best estimate of $700,977. That places the property above the R381591E - Hunters' Chase Sec 5 & 7 median of $488,824, in a neighborhood that declined 2.2% over the past year.

Estimated Value Range

$664,932 $818,043
Best Estimate
$700,977
WCAD Value
$503,862
High Confidence

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

Based on 5 comparable properties in R381591E - Hunters' Chase Sec 5 & 7, this home's estimated market value is between $664,932 and $818,043. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8405 CAHILL DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,987 sqft Built 1999
Raw Value $517,474
Adjusted Value $664,932

Adjusted +$147,458 for 399 sqft more living space. Net adjustment: +$147,458.

8409 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,923 sqft Built 2001
Raw Value $521,314
Adjusted Value $687,029

Adjusted +$171,110 for 463 sqft more living space and -$5,395 for being older. Net adjustment: +$165,715.

8413 CAHILL DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,923 sqft Built 2000
Raw Value $532,565
Adjusted Value $700,977

Adjusted +$171,110 for 463 sqft more living space and -$2,698 for being older. Net adjustment: +$168,412.

8417 CAHILL DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
3 bed 2 bath 1,597 sqft Built 1999
Raw Value $459,992
Adjusted Value $751,582

Adjusted +$291,590 for 789 sqft more living space. Net adjustment: +$291,590.

8416 CAHILL DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,701 sqft Built 1998
Raw Value $562,190
Adjusted Value $818,043

Adjusted +$253,155 for 685 sqft more living space and +$2,698 for being newer. Net adjustment: +$255,853.

The Neighborhood

This home is valued 3.1% above the R381591E - Hunters' Chase Sec 5 & 7 median of $488,824. With 762 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.2% over the past year.

R381591E - Hunters' Chase Sec 5 & 7

typical
762 Properties
$488,824 Median Value
-2.2% YoY Change
3% Have Pool
100% Have Garage
This Home
$503,862
Median
$488,824

This home is +3.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,832 across all districts. With a homestead exemption claimed, that drops to $7,960 — saving $1,872 per year. That's $663 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%$4,500
AustinCity0.5240%$2,640
Williamson CountyCounty0.3694%$1,862
Austin Community Collegespecial0.1034%$521
Williamson County FM/RdCounty0.0443%$223
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$9,832

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $700,977 would pay approximately $4,375 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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