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4003 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,982 sqftBuilt 1999

Property at a Glance

This home is estimated between $635,870 and $914,032, with a best estimate of $860,153. That places the property above 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

$635,870 $914,032
Best Estimate
$860,153
WCAD Value
$515,796
High Confidence

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

Based on 5 comparable properties in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C, this home's estimated market value is between $635,870 and $914,032. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4108 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,103 sqft Built 1997
Raw Value $444,414
Adjusted Value $699,006

Adjusted +$247,487 for 879 sqft more living space and +$7,105 for being newer. Net adjustment: +$254,592.

4103 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2,283 sqft Built 1997
Raw Value $431,958
Adjusted Value $635,870

Adjusted +$196,807 for 699 sqft more living space and +$7,105 for being newer. Net adjustment: +$203,912.

4005 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,906 sqft Built 2000
Raw Value $614,630
Adjusted Value $914,032

Adjusted +$302,954 for 1,076 sqft more living space and -$3,552 for being older. Net adjustment: +$299,402.

4109 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,284 sqft Built 1996
Raw Value $652,970
Adjusted Value $860,153

Adjusted +$196,526 for 698 sqft more living space and +$10,657 for being newer. Net adjustment: +$207,183.

4013 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,015 sqft Built 1996
Raw Value $616,034
Adjusted Value $898,955

Adjusted +$272,264 for 967 sqft more living space and +$10,657 for being newer. Net adjustment: +$282,921.

The Neighborhood

This home is valued 14.7% 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
$515,796
Median
$449,628

This home is +14.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,976 across all districts. With a homestead exemption claimed, that drops to $8,359 — saving $1,617 per year. That's $697 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%$5,606
Williamson CountyCounty0.3694%$1,906
Vista Oaks MUDMUD0.2131%$1,099
Austin Community Collegespecial0.1034%$533
Williamson County ESD #9 - Round RockESD0.0999%$515
Williamson County FM/RdCounty0.0443%$229
Upper Brushy Creek WCIDWater0.0170%$88
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$9,976

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $860,153 would pay approximately $5,369 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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