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4005 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,906 sqftBuilt 2000

Property at a Glance

This home is estimated between $336,469 and $754,685, with a best estimate of $693,705. 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

$336,469 $754,685
Best Estimate
$693,705
WCAD Value
$614,630
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 $336,469 and $754,685. 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 $399,605

Adjusted -$55,466 for 197 sqft less living space and +$10,657 for being newer. Net adjustment: -$44,809.

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 $336,469

Adjusted -$106,146 for 377 sqft less living space and +$10,657 for being newer. Net adjustment: -$95,489.

4107 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,561 sqft Built 1996
Raw Value $612,709
Adjusted Value $724,056

Adjusted +$97,137 for 345 sqft more living space and +$14,210 for being newer. Net adjustment: +$111,347.

4011 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,555 sqft Built 2001
Raw Value $598,431
Adjusted Value $693,705

Adjusted +$98,826 for 351 sqft more living space and -$3,552 for being older. Net adjustment: +$95,274.

4008 VISTA ISLE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,640 sqft Built 2001
Raw Value $683,343
Adjusted Value $754,685

Adjusted +$74,894 for 266 sqft more living space and -$3,552 for being older. Net adjustment: +$71,342.

The Neighborhood

This home is valued 36.7% 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

above average
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$614,630
Median
$449,628

This home is +36.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,887 across all districts. With a homestead exemption claimed, that drops to $10,252 — saving $1,635 per year. That's $854 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%$6,680
Williamson CountyCounty0.3694%$2,271
Vista Oaks MUDMUD0.2131%$1,310
Austin Community Collegespecial0.1034%$636
Williamson County ESD #9 - Round RockESD0.0999%$614
Williamson County FM/RdCounty0.0443%$272
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$11,887

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $693,705 would pay approximately $4,330 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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