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4001 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,549 sqftBuilt 2001

Property at a Glance

This home is estimated between $463,789 and $657,721, with a best estimate of $596,742. 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

$463,789 $657,721
Best Estimate
$596,742
WCAD Value
$638,647
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 $463,789 and $657,721. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $627,092

Adjusted -$3,379 for 12 sqft less living space and +$17,762 for being newer. Net adjustment: +$14,383.

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 $596,742

Adjusted -$1,689 for 6 sqft less living space. Net adjustment: -$1,689.

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 $657,721

Adjusted -$25,622 for 91 sqft less living space. Net adjustment: -$25,622.

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 $517,667

Adjusted -$100,515 for 357 sqft less living space and +$3,552 for being newer. Net adjustment: -$96,963.

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 $463,789

Adjusted -$206,943 for 735 sqft less living space and +$17,762 for being newer. Net adjustment: -$189,181.

The Neighborhood

This home is valued 42.0% 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
$638,647
Median
$449,628

This home is +42.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,352 across all districts. With a homestead exemption claimed, that drops to $10,712 — saving $1,640 per year. That's $893 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%$6,941
Williamson CountyCounty0.3694%$2,359
Vista Oaks MUDMUD0.2131%$1,361
Austin Community Collegespecial0.1034%$660
Williamson County ESD #9 - Round RockESD0.0999%$638
Williamson County FM/RdCounty0.0443%$283
Upper Brushy Creek WCIDWater0.0170%$109
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$12,352

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $596,742 would pay approximately $3,725 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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