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3908 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,494 sqftBuilt 2002

Property at a Glance

This home is estimated between $434,871 and $629,296, with a best estimate of $488,161. 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

$434,871 $629,296
Best Estimate
$488,161
WCAD Value
$485,163
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 $434,871 and $629,296. 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 $629,296

Adjusted +$162,222 for 567 sqft more living space. Net adjustment: +$162,222.

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 $434,871

Adjusted -$81,540 for 285 sqft less living space. Net adjustment: -$81,540.

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 $488,079

Adjusted +$10,872 for 38 sqft more living space and +$1,965 for being newer. Net adjustment: +$12,837.

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 $488,161

Adjusted -$12,016 for 42 sqft less living space. Net adjustment: -$12,016.

3920 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,126 sqft Built 2002
Raw Value $438,108
Adjusted Value $543,395

Adjusted +$105,287 for 368 sqft more living space. Net adjustment: +$105,287.

The Neighborhood

This home is valued 5.7% 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
$485,163
Median
$514,276

This home is -5.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,729 across all districts. With a homestead exemption claimed, that drops to $7,389 — saving $1,340 per year. That's $616 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%$4,333
Round RockCity0.3720%$1,805
Williamson CountyCounty0.3694%$1,792
Austin Community Collegespecial0.1034%$502
Williamson County FM/RdCounty0.0443%$215
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,729

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $488,161 would pay approximately $3,047 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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