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3902 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,241 sqftBuilt 2001

Property at a Glance

This home is estimated between $360,521 and $554,946, with a best estimate of $413,729. That places the property below the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$360,521 $554,946
Best Estimate
$413,729
WCAD Value
$446,267
High Confidence

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

Based on 5 comparable properties in R550600D - Forest Creek Sec 15,16,19,31, this home's estimated market value is between $360,521 and $554,946. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3910 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,927 sqft Built 2002
Raw Value $467,074
Adjusted Value $554,946

Adjusted +$89,837 for 314 sqft more living space and -$1,965 for being older. Net adjustment: +$87,872.

3909 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,779 sqft Built 2002
Raw Value $516,411
Adjusted Value $360,521

Adjusted -$153,925 for 538 sqft less living space and -$1,965 for being older. Net adjustment: -$155,890.

3908 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,494 sqft Built 2002
Raw Value $485,163
Adjusted Value $410,813

Adjusted -$72,385 for 253 sqft less living space and -$1,965 for being older. Net adjustment: -$74,350.

3917 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,456 sqft Built 2001
Raw Value $475,242
Adjusted Value $413,729

Adjusted -$61,513 for 215 sqft less living space. Net adjustment: -$61,513.

3914 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,536 sqft Built 2002
Raw Value $500,177
Adjusted Value $413,811

Adjusted -$84,401 for 295 sqft less living space and -$1,965 for being older. Net adjustment: -$86,366.

The Neighborhood

This home is valued 13.2% below the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.7% over the past year.

R550600D - Forest Creek Sec 15,16,19,31

typical
274 Properties
$514,276 Median Value
-8.7% YoY Change
0% Have Pool
99% Have Garage
This Home
$446,267
Median
$514,276

This home is -13.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,030 across all districts. With a homestead exemption claimed, that drops to $6,697 — saving $1,333 per year. That's $558 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%$3,986
Round RockCity0.3720%$1,660
Williamson CountyCounty0.3694%$1,649
Austin Community Collegespecial0.1034%$461
Williamson County FM/RdCounty0.0443%$198
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,030

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $413,729 would pay approximately $2,582 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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