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8422 SEA ASH CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,400 sqftBuilt 1998

Property at a Glance

This home is estimated between $426,579 and $610,830, with a best estimate of $601,720. 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

$426,579 $610,830
Best Estimate
$601,720
WCAD Value
$627,651
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 $426,579 and $610,830. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8420 SEA ASH CIR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,519 sqft Built 1998
Raw Value $480,467
Adjusted Value $440,763

Adjusted -$39,704 for 119 sqft less living space. Net adjustment: -$39,704.

16805 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,350 sqft Built 1999
Raw Value $586,133
Adjusted Value $601,720

Adjusted +$16,682 for 50 sqft more living space and -$1,095 for being older. Net adjustment: +$15,587.

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 $426,579

Adjusted -$106,099 for 318 sqft less living space and -$1,095 for being older. Net adjustment: -$107,194.

8425 SEA ASH CIR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 969 sqft Built 1998
Raw Value $467,029
Adjusted Value $610,830

Adjusted +$143,801 for 431 sqft more living space. Net adjustment: +$143,801.

8428 SEA ASH CIR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,050 sqft Built 1998
Raw Value $491,850
Adjusted Value $608,626

Adjusted +$116,776 for 350 sqft more living space. Net adjustment: +$116,776.

The Neighborhood

This home is valued 20.0% 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
$627,651
Median
$523,036

This home is +20.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,716 across all districts. With a homestead exemption claimed, that drops to $9,349 — saving $1,367 per year. That's $779 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%$5,606
Williamson CountyCounty0.3694%$2,319
Fern Bluff MUDMUD0.1800%$1,130
Austin Community Collegespecial0.1034%$649
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$628
Williamson County FM/RdCounty0.0443%$278
Upper Brushy Creek WCIDWater0.0170%$107
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,716

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $601,720 would pay approximately $3,756 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.

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