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

8409 CAHILL DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath1,923 sqftBuilt 2001

Property at a Glance

This home is estimated between $338,147 and $889,823, with a best estimate of $535,263. 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

$338,147 $889,823
Best Estimate
$535,263
WCAD Value
$521,314
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 $338,147 and $889,823. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8413 CAHILL DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,923 sqft Built 2000
Raw Value $532,565
Adjusted Value $535,263

Adjusted +$2,698 for being newer. Net adjustment: +$2,698.

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 $499,217

Adjusted -$23,652 for 64 sqft less living space and +$5,395 for being newer. Net adjustment: -$18,257.

8401 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,386 sqft Built 1999
Raw Value $503,862
Adjusted Value $338,147

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

8417 CAHILL DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,597 sqft Built 1999
Raw Value $459,992
Adjusted Value $585,866

Adjusted +$120,479 for 326 sqft more living space and +$5,395 for being newer. Net adjustment: +$125,874.

8404 CAHILL DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,201 sqft Built 2001
Raw Value $622,994
Adjusted Value $889,823

Adjusted +$266,829 for 722 sqft more living space. Net adjustment: +$266,829.

The Neighborhood

This home is valued 6.6% 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
$521,314
Median
$488,824

This home is +6.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,172 across all districts. With a homestead exemption claimed, that drops to $8,279 — saving $1,893 per year. That's $690 per month a buyer should budget. The assessed value increased +6.3% vs the subdivision average of -2.2%. This above-average increase gives a protest opportunity score of 58 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,656
AustinCity0.5240%$2,732
Williamson CountyCounty0.3694%$1,926
Austin Community Collegespecial0.1034%$539
Williamson County FM/RdCounty0.0443%$231
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$10,172
58 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $535,263 would pay approximately $3,341 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