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

15908 KIAWAH ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath1,897 sqftBuilt 2002

Property at a Glance

This home is estimated between $682,642 and $862,266, with a best estimate of $715,347. That places the property below the R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2 median of $798,474, in a neighborhood that declined 1.5% over the past year.

Estimated Value Range

$682,642 $862,266
Best Estimate
$715,347
WCAD Value
$774,400
High Confidence

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

Based on 5 comparable properties in R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2, this home's estimated market value is between $682,642 and $862,266. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15912 KIAWAH ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,047 sqft Built 2002
Raw Value $736,554
Adjusted Value $682,642

Adjusted -$53,912 for 150 sqft less living space. Net adjustment: -$53,912.

16104 DOUBLE EAGLE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,920 sqft Built 2003
Raw Value $726,023
Adjusted Value $720,651

Adjusted -$8,266 for 23 sqft less living space and +$2,894 for being newer. Net adjustment: -$5,372.

15900 KIAWAH ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,325 sqft Built 2004
Raw Value $863,386
Adjusted Value $715,347

Adjusted -$153,828 for 428 sqft less living space and +$5,789 for being newer. Net adjustment: -$148,039.

16108 DOUBLE EAGLE DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,328 sqft Built 2002
Raw Value $842,825
Adjusted Value $687,919

Adjusted -$154,906 for 431 sqft less living space. Net adjustment: -$154,906.

15905 KIAWAH ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,027 sqft Built 2002
Raw Value $908,989
Adjusted Value $862,266

Adjusted -$46,723 for 130 sqft less living space. Net adjustment: -$46,723.

The Neighborhood

This home is valued 3.0% below the R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2 median of $798,474. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 1.5% over the past year.

R250501D - AVERY RANCH EAST ALL SECTIONS PHASE 2

typical
455 Properties
$798,474 Median Value
-1.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$774,400
Median
$798,474

This home is -3.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,111 across all districts. With a homestead exemption claimed, that drops to $12,906 — saving $2,205 per year. That's $1,076 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%$6,916
AustinCity0.5240%$4,058
Williamson CountyCounty0.3694%$2,861
Austin Community Collegespecial0.1034%$801
Williamson County FM/RdCounty0.0443%$343
Upper Brushy Creek WCIDWater0.0170%$132
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$15,111

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $715,347 would pay approximately $4,465 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