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8100 FULL MOON TRL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,394 sqftBuilt 2000

Property at a Glance

This home is estimated between $435,822 and $553,189, with a best estimate of $521,944. That places the property below the R292598D - Stone Canyon - Weekley & Newmark median of $523,036, in a neighborhood that declined 5.2% over the past year.

Estimated Value Range

$435,822 $553,189
Best Estimate
$521,944
WCAD Value
$634,756
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 $435,822 and $553,189. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8102 FULL MOON TRL, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,647 sqft Built 2001
Raw Value $638,696
Adjusted Value $553,189

Adjusted -$84,412 for 253 sqft less living space and -$1,095 for being older. Net adjustment: -$85,507.

8104 FULL MOON TRL, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
4 bed 3 bath 1,910 sqft Built 2001
Raw Value $675,667
Adjusted Value $502,411

Adjusted -$172,161 for 516 sqft less living space and -$1,095 for being older. Net adjustment: -$173,256.

8200 FULL MOON TRL, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,871 sqft Built 2000
Raw Value $684,188
Adjusted Value $525,039

Adjusted -$159,149 for 477 sqft less living space. Net adjustment: -$159,149.

7001 COOL CANYON CV, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,746 sqft Built 2000
Raw Value $553,265
Adjusted Value $435,822

Adjusted -$117,443 for 352 sqft less living space. Net adjustment: -$117,443.

7003 COOL CANYON CV, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
4 bed 3 bath 1,216 sqft Built 2000
Raw Value $462,555
Adjusted Value $521,944

Adjusted +$59,389 for 178 sqft more living space. Net adjustment: +$59,389.

The Neighborhood

This home is valued 21.4% 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
$634,756
Median
$523,036

This home is +21.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,837 across all districts. With a homestead exemption claimed, that drops to $9,469 — saving $1,368 per year. That's $789 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%$5,669
Williamson CountyCounty0.3694%$2,345
Fern Bluff MUDMUD0.1800%$1,143
Austin Community Collegespecial0.1034%$656
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$635
Williamson County FM/RdCounty0.0443%$281
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7073%$10,837

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $521,944 would pay approximately $3,258 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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