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4023 CASTLE CREEK, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,386 sqftBuilt 1995

Property at a Glance

This home is estimated between $286,572 and $467,049, with a best estimate of $325,909. That places the property below the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628, in a neighborhood that declined 2.9% over the past year.

Estimated Value Range

$286,572 $467,049
Best Estimate
$325,909
WCAD Value
$511,149
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C. The estimated range of $286,572 and $467,049 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,186 sqft Built 1994
Raw Value $407,186
Adjusted Value $467,049

Adjusted +$56,311 for 200 sqft more living space and +$3,552 for being newer. Net adjustment: +$59,863.

3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $325,909

Adjusted -$55,748 for 198 sqft less living space. Net adjustment: -$55,748.

3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $320,746

Adjusted -$56,030 for 199 sqft less living space and -$7,105 for being older. Net adjustment: -$63,135.

3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $286,572

Adjusted -$81,369 for 289 sqft less living space. Net adjustment: -$81,369.

3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $410,012

Adjusted +$23,369 for 83 sqft more living space and +$39,076 for being newer. Net adjustment: +$62,445.

The Neighborhood

This home is valued 13.7% above the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. With 904 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.9% over the past year.

L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C

typical
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$511,149
Median
$449,628

This home is +13.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,886 across all districts. With a homestead exemption claimed, that drops to $8,270 — saving $1,616 per year. That's $689 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
Leander ISDSchool1.0869%$5,556
Williamson CountyCounty0.3694%$1,888
Vista Oaks MUDMUD0.2131%$1,089
Austin Community Collegespecial0.1034%$529
Williamson County ESD #9 - Round RockESD0.0999%$511
Williamson County FM/RdCounty0.0443%$227
Upper Brushy Creek WCIDWater0.0170%$87
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$9,886

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $325,909 would pay approximately $2,034 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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