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3907 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath1,542 sqftBuilt 2002

Property at a Glance

This home is estimated between $444,696 and $571,770, with a best estimate of $483,545. 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

$444,696 $571,770
Best Estimate
$483,545
WCAD Value
$509,473
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 $444,696 and $571,770. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3900 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,608 sqft Built 2002
Raw Value $542,471
Adjusted Value $523,588

Adjusted -$18,883 for 66 sqft less living space. Net adjustment: -$18,883.

3923 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 1,599 sqft Built 2003
Raw Value $501,818
Adjusted Value $483,545

Adjusted -$16,308 for 57 sqft less living space and -$1,965 for being older. Net adjustment: -$18,273.

3904 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,830 sqft Built 2001
Raw Value $527,060
Adjusted Value $446,626

Adjusted -$82,399 for 288 sqft less living space and +$1,965 for being newer. Net adjustment: -$80,434.

3928 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,510 sqft Built 2003
Raw Value $564,580
Adjusted Value $571,770

Adjusted +$9,155 for 32 sqft more living space and -$1,965 for being older. Net adjustment: +$7,190.

3913 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,718 sqft Built 2002
Raw Value $495,051
Adjusted Value $444,696

Adjusted -$50,355 for 176 sqft less living space. Net adjustment: -$50,355.

The Neighborhood

This home is in line with the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. 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
$509,473
Median
$514,276

This home is -0.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,167 across all districts. With a homestead exemption claimed, that drops to $7,822 — saving $1,345 per year. That's $652 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%$4,550
Round RockCity0.3720%$1,895
Williamson CountyCounty0.3694%$1,882
Austin Community Collegespecial0.1034%$527
Williamson County FM/RdCounty0.0443%$226
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,167

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $483,545 would pay approximately $3,018 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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