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8517 CAHILL DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed3 bath988 sqftBuilt 2000

Property at a Glance

This home is estimated between $399,795 and $523,423, with a best estimate of $478,171. That places the property below 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

$399,795 $523,423
Best Estimate
$478,171
WCAD Value
$506,180
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 $399,795 and $523,423. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8513 CAHILL DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,236 sqft Built 2000
Raw Value $569,824
Adjusted Value $478,171

Adjusted -$91,653 for 248 sqft less living space. Net adjustment: -$91,653.

8505 CAHILL DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,252 sqft Built 1996
Raw Value $486,571
Adjusted Value $399,795

Adjusted -$97,566 for 264 sqft less living space and +$10,790 for being newer. Net adjustment: -$86,776.

8532 FOXHOUND TRL, AUSTIN, TX 78729
0.06 mi 100% similar Same subdivision
4 bed 2 bath 1,158 sqft Built 1998
Raw Value $580,048
Adjusted Value $522,616

Adjusted -$62,827 for 170 sqft less living space and +$5,395 for being newer. Net adjustment: -$57,432.

8501 CAHILL DR, AUSTIN, TX 78729
0.06 mi 100% similar Same subdivision
4 bed 2 bath 1,010 sqft Built 1997
Raw Value $477,524
Adjusted Value $477,486

Adjusted -$8,131 for 22 sqft less living space and +$8,093 for being newer. Net adjustment: -$38.

8500 CAHILL DR, AUSTIN, TX 78729
0.08 mi 100% similar Same subdivision
4 bed 2 bath 1,187 sqft Built 1997
Raw Value $588,874
Adjusted Value $523,423

Adjusted -$73,544 for 199 sqft less living space and +$8,093 for being newer. Net adjustment: -$65,451.

The Neighborhood

This home is valued 3.6% 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
$506,180
Median
$488,824

This home is +3.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,877 across all districts. With a homestead exemption claimed, that drops to $8,003 — saving $1,874 per year. That's $667 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%$4,521
AustinCity0.5240%$2,652
Williamson CountyCounty0.3694%$1,870
Austin Community Collegespecial0.1034%$523
Williamson County FM/RdCounty0.0443%$224
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$9,877

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $478,171 would pay approximately $2,985 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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