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

8419 SEA ASH CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,639 sqftBuilt 1998

Property at a Glance

This home is estimated between $520,504 and $725,269, with a best estimate of $657,875. 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

$520,504 $725,269
Best Estimate
$657,875
WCAD Value
$629,379
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 $520,504 and $725,269. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8417 SEA ASH CIR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,617 sqft Built 1998
Raw Value $520,095
Adjusted Value $527,435

Adjusted +$7,340 for 22 sqft more living space. Net adjustment: +$7,340.

8421 SEA ASH CIR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,114 sqft Built 1998
Raw Value $550,105
Adjusted Value $725,269

Adjusted +$175,164 for 525 sqft more living space. Net adjustment: +$175,164.

8415 SEA ASH CIR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,414 sqft Built 1998
Raw Value $582,805
Adjusted Value $657,875

Adjusted +$75,070 for 225 sqft more living space. Net adjustment: +$75,070.

8420 SEA ASH CIR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,519 sqft Built 1998
Raw Value $480,467
Adjusted Value $520,504

Adjusted +$40,037 for 120 sqft more living space. Net adjustment: +$40,037.

8414 SEA ASH CIR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,400 sqft Built 1998
Raw Value $633,865
Adjusted Value $713,606

Adjusted +$79,741 for 239 sqft more living space. Net adjustment: +$79,741.

The Neighborhood

This home is valued 20.3% above the R292598D - Stone Canyon - Weekley & Newmark median of $523,036. With 952 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.2% over the past year.

R292598D - Stone Canyon - Weekley & Newmark

above average
952 Properties
$523,036 Median Value
-5.2% YoY Change
1% Have Pool
99% Have Garage
This Home
$629,379
Median
$523,036

This home is +20.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,745 across all districts. With a homestead exemption claimed, that drops to $9,379 — saving $1,366 per year. That's $782 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%$5,621
Williamson CountyCounty0.3694%$2,325
Fern Bluff MUDMUD0.1800%$1,133
Austin Community Collegespecial0.1034%$651
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$629
Williamson County FM/RdCounty0.0443%$279
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,745

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $657,875 would pay approximately $4,106 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