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3915 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath1,922 sqftBuilt 2002

Property at a Glance

This home is estimated between $465,643 and $632,308, with a best estimate of $592,265. 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

$465,643 $632,308
Best Estimate
$592,265
WCAD Value
$577,763
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 $465,643 and $632,308. 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 $632,308

Adjusted +$89,837 for 314 sqft more living space. Net adjustment: +$89,837.

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 $465,643

Adjusted -$1,431 for 5 sqft less living space. Net adjustment: -$1,431.

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 $592,265

Adjusted +$92,412 for 323 sqft more living space and -$1,965 for being older. Net adjustment: +$90,447.

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 $555,347

Adjusted +$26,322 for 92 sqft more living space and +$1,965 for being newer. Net adjustment: +$28,287.

3907 BLUE MONSTER CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,542 sqft Built 2002
Raw Value $509,473
Adjusted Value $618,193

Adjusted +$108,720 for 380 sqft more living space. Net adjustment: +$108,720.

The Neighborhood

This home is valued 12.3% above the R550600D - Forest Creek Sec 15,16,19,31 median of $514,276. With 274 homes in the subdivision, the property sits in the upper tier. 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
$577,763
Median
$514,276

This home is +12.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,396 across all districts. With a homestead exemption claimed, that drops to $9,038 — saving $1,358 per year. That's $753 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%$5,160
Round RockCity0.3720%$2,149
Williamson CountyCounty0.3694%$2,135
Austin Community Collegespecial0.1034%$597
Williamson County FM/RdCounty0.0443%$256
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,396

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $592,265 would pay approximately $3,697 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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