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4004 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,915 sqftBuilt 2001

Property at a Glance

This home is estimated between $342,556 and $760,771, with a best estimate of $699,791. 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

$342,556 $760,771
Best Estimate
$699,791
WCAD Value
$669,147
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 $342,556 and $760,771. 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 $405,692

Adjusted -$52,932 for 188 sqft less living space and +$14,210 for being newer. Net adjustment: -$38,722.

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 $342,556

Adjusted -$103,612 for 368 sqft less living space and +$14,210 for being newer. Net adjustment: -$89,402.

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 $730,142

Adjusted +$99,671 for 354 sqft more living space and +$17,762 for being newer. Net adjustment: +$117,433.

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 $699,791

Adjusted +$101,360 for 360 sqft more living space. Net adjustment: +$101,360.

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 $760,771

Adjusted +$77,428 for 275 sqft more living space. Net adjustment: +$77,428.

The Neighborhood

This home is valued 48.8% 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
$669,147
Median
$449,628

This home is +48.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,942 across all districts. With a homestead exemption claimed, that drops to $11,297 — saving $1,645 per year. That's $941 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%$7,273
Williamson CountyCounty0.3694%$2,472
Vista Oaks MUDMUD0.2131%$1,426
Austin Community Collegespecial0.1034%$692
Williamson County ESD #9 - Round RockESD0.0999%$669
Williamson County FM/RdCounty0.0443%$297
Upper Brushy Creek WCIDWater0.0170%$114
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$12,942

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $699,791 would pay approximately $4,368 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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