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3923 BLUE MONSTER CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed1,599 sqftBuilt 2003

Property at a Glance

This home is estimated between $375,196 and $590,043, with a best estimate of $527,746. 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

$375,196 $590,043
Best Estimate
$527,746
WCAD Value
$501,818
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 $375,196 and $590,043. 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 $541,861

Adjusted -$2,575 for 9 sqft less living space and +$1,965 for being newer. Net adjustment: -$610.

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 $375,196

Adjusted -$93,843 for 328 sqft less living space and +$1,965 for being newer. Net adjustment: -$91,878.

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 $464,899

Adjusted -$66,091 for 231 sqft less living space and +$3,930 for being newer. Net adjustment: -$62,161.

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 $590,043

Adjusted +$25,463 for 89 sqft more living space. Net adjustment: +$25,463.

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 $527,746

Adjusted +$16,308 for 57 sqft more living space and +$1,965 for being newer. Net adjustment: +$18,273.

The Neighborhood

This home is valued 2.4% 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
$501,818
Median
$514,276

This home is -2.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,029 across all districts. With a homestead exemption claimed, that drops to $7,686 — saving $1,343 per year. That's $641 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%$4,482
Round RockCity0.3720%$1,867
Williamson CountyCounty0.3694%$1,854
Austin Community Collegespecial0.1034%$519
Williamson County FM/RdCounty0.0443%$222
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,029

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $527,746 would pay approximately $3,294 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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