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

8414 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 $421,042 and $627,310, with a best estimate of $525,979. 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

$421,042 $627,310
Best Estimate
$525,979
WCAD Value
$633,865
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 $421,042 and $627,310. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8412 SEA ASH CIR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,328 sqft Built 1998
Raw Value $603,288
Adjusted Value $627,310

Adjusted +$24,022 for 72 sqft more living space. Net adjustment: +$24,022.

16705 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,762 sqft Built 1998
Raw Value $541,822
Adjusted Value $421,042

Adjusted -$120,780 for 362 sqft less living space. Net adjustment: -$120,780.

16801 WILLOW OAK LN, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,213 sqft Built 1999
Raw Value $464,682
Adjusted Value $525,979

Adjusted +$62,392 for 187 sqft more living space and -$1,095 for being older. Net adjustment: +$61,297.

8408 SEA ASH CIR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,444 sqft Built 1998
Raw Value $581,969
Adjusted Value $567,289

Adjusted -$14,680 for 44 sqft less living space. Net adjustment: -$14,680.

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 $440,763

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

The Neighborhood

This home is valued 21.2% 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
$633,865
Median
$523,036

This home is +21.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,822 across all districts. With a homestead exemption claimed, that drops to $9,454 — saving $1,368 per year. That's $788 per month a buyer should budget. The assessed value increased +1.1% vs the subdivision average of -5.2%. This above-average increase gives a protest opportunity score of 32 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,661
Williamson CountyCounty0.3694%$2,342
Fern Bluff MUDMUD0.1800%$1,141
Austin Community Collegespecial0.1034%$655
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$634
Williamson County FM/RdCounty0.0443%$281
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,822
32 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $525,979 would pay approximately $3,283 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