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

9003 SPARKLING CREEK DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed3,249 sqftBuilt 1990

Property at a Glance

This home is estimated between $722,719 and $1,575,104, with a best estimate of $771,398. That places the property above the G437X - Williamson Multifamily 3 or More Units median of $571,543, in a neighborhood that declined 9.1% over the past year.

Estimated Value Range

$722,719 $1,575,104
Best Estimate
$771,398
WCAD Value
$1,101,233
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in G437X - Williamson Multifamily 3 or More Units. The estimated range of $722,719 and $1,575,104 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,117 sqft Built 1992
Raw Value $444,706
Adjusted Value $745,136

Adjusted +$306,769 for 1,132 sqft more living space and -$6,339 for being older. Net adjustment: +$300,430.

3 bed 2 bath 2,005 sqft Built 1991
Raw Value $437,447
Adjusted Value $771,398

Adjusted +$337,120 for 1,244 sqft more living space and -$3,169 for being older. Net adjustment: +$333,951.

3 bed 2,025 sqft Built 1965
Raw Value $1,164,169
Adjusted Value $1,575,104

Adjusted +$331,700 for 1,224 sqft more living space and +$79,235 for being newer. Net adjustment: +$410,935.

4 bed 3 bath 2,204 sqft Built 1994
Raw Value $544,049
Adjusted Value $814,563

Adjusted +$283,192 for 1,045 sqft more living space and -$12,678 for being older. Net adjustment: +$270,514.

4 bed 4 bath 2,330 sqft Built 1981
Raw Value $445,148
Adjusted Value $722,719

Adjusted +$249,046 for 919 sqft more living space and +$28,525 for being newer. Net adjustment: +$277,571.

The Neighborhood

This home is valued 92.7% above the G437X - Williamson Multifamily 3 or More Units median of $571,543. With 231 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.1% over the past year.

G437X - Williamson Multifamily 3 or More Units

outlier high
231 Properties
$571,543 Median Value
-9.1% YoY Change
0% Have Pool
33% Have Garage
This Home
$1,101,233
Median
$571,543

This home is +92.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $21,488 across all districts. With a homestead exemption claimed, that drops to $18,880 — saving $2,608 per year. That's $1,573 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%$9,835
AustinCity0.5240%$5,771
Williamson CountyCounty0.3694%$4,068
Austin Community Collegespecial0.1034%$1,139
Williamson County FM/RdCounty0.0443%$488
Upper Brushy Creek WCIDWater0.0170%$187
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$21,488

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $771,398 would pay approximately $4,815 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