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3926 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,676 sqftBuilt 2003

Property at a Glance

This home is estimated between $397,226 and $612,074, with a best estimate of $523,848. That places the property above 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

$397,226 $612,074
Best Estimate
$523,848
WCAD Value
$518,931
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 $397,226 and $612,074. 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 $563,891

Adjusted +$19,455 for 68 sqft more living space and +$1,965 for being newer. Net adjustment: +$21,420.

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 $397,226

Adjusted -$71,813 for 251 sqft less living space and +$1,965 for being newer. Net adjustment: -$69,848.

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 $523,848

Adjusted +$22,030 for 77 sqft more living space. Net adjustment: +$22,030.

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 $486,930

Adjusted -$44,060 for 154 sqft less living space and +$3,930 for being newer. Net adjustment: -$40,130.

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 $612,074

Adjusted +$47,494 for 166 sqft more living space. Net adjustment: +$47,494.

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
$518,931
Median
$514,276

This home is +0.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,337 across all districts. With a homestead exemption claimed, that drops to $7,991 — saving $1,346 per year. That's $666 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%$4,635
Round RockCity0.3720%$1,930
Williamson CountyCounty0.3694%$1,917
Austin Community Collegespecial0.1034%$537
Williamson County FM/RdCounty0.0443%$230
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,337

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $523,848 would pay approximately $3,270 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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