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8505 CAHILL DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath1,252 sqftBuilt 1996

Property at a Glance

This home is estimated between $344,740 and $610,198, with a best estimate of $544,745. 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

$344,740 $610,198
Best Estimate
$544,745
WCAD Value
$486,571
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 $344,740 and $610,198. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8501 CAHILL DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,010 sqft Built 1997
Raw Value $477,524
Adjusted Value $564,262

Adjusted +$89,436 for 242 sqft more living space and -$2,698 for being older. Net adjustment: +$86,738.

8504 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,308 sqft Built 1996
Raw Value $565,441
Adjusted Value $544,745

Adjusted -$20,696 for 56 sqft less living space. Net adjustment: -$20,696.

8511 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,534 sqft Built 1999
Raw Value $457,051
Adjusted Value $344,740

Adjusted -$104,218 for 282 sqft less living space and -$8,093 for being older. Net adjustment: -$112,311.

8508 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,609 sqft Built 1998
Raw Value $606,258
Adjusted Value $468,927

Adjusted -$131,936 for 357 sqft less living space and -$5,395 for being older. Net adjustment: -$137,331.

8500 CAHILL DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,187 sqft Built 1997
Raw Value $588,874
Adjusted Value $610,198

Adjusted +$24,022 for 65 sqft more living space and -$2,698 for being older. Net adjustment: +$21,324.

The Neighborhood

This home is in line with the R381591E - Hunters' Chase Sec 5 & 7 median of $488,824. 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
$486,571
Median
$488,824

This home is -0.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,494 across all districts. With a homestead exemption claimed, that drops to $7,644 — saving $1,850 per year. That's $637 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%$4,346
AustinCity0.5240%$2,550
Williamson CountyCounty0.3694%$1,798
Austin Community Collegespecial0.1034%$503
Williamson County FM/RdCounty0.0443%$216
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$9,494

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $544,745 would pay approximately $3,400 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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