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

8424 SEA ASH CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,416 sqftBuilt 1998

Property at a Glance

This home is estimated between $383,396 and $765,562, with a best estimate of $555,675. That places the property above the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$383,396 $765,562
Best Estimate
$555,675
WCAD Value
$526,912
High Confidence

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

Based on 5 comparable properties in R292598D - Stone Canyon - Weekley & Newmark, this home's estimated market value is between $383,396 and $765,562. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8426 SEA ASH CIR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 3,028 sqft Built 1998
Raw Value $587,587
Adjusted Value $383,396

Adjusted -$204,191 for 612 sqft less living space. Net adjustment: -$204,191.

16811 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,122 sqft Built 1998
Raw Value $457,583
Adjusted Value $555,675

Adjusted +$98,092 for 294 sqft more living space. Net adjustment: +$98,092.

16809 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,718 sqft Built 1999
Raw Value $533,773
Adjusted Value $765,562

Adjusted +$232,884 for 698 sqft more living space and -$1,095 for being older. Net adjustment: +$231,789.

16807 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,182 sqft Built 1998
Raw Value $466,161
Adjusted Value $544,234

Adjusted +$78,073 for 234 sqft more living space. Net adjustment: +$78,073.

16813 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,839 sqft Built 1999
Raw Value $431,577
Adjusted Value $622,995

Adjusted +$192,513 for 577 sqft more living space and -$1,095 for being older. Net adjustment: +$191,418.

The Neighborhood

This home is in line with the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. Note that values in this subdivision declined 5.2% over the past year.

R292598D - Stone Canyon - Weekley & Newmark

typical
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$526,912
Median
$523,036

This home is +0.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,996 across all districts. With a homestead exemption claimed, that drops to $7,648 — saving $1,348 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%$4,706
Williamson CountyCounty0.3694%$1,947
Fern Bluff MUDMUD0.1800%$948
Austin Community Collegespecial0.1034%$545
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$527
Williamson County FM/RdCounty0.0443%$234
Upper Brushy Creek WCIDWater0.0170%$90
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$8,996

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $555,675 would pay approximately $3,469 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