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4008 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,640 sqftBuilt 2001

Property at a Glance

This home is estimated between $265,128 and $652,714, with a best estimate of $543,288. 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

$265,128 $652,714
Best Estimate
$543,288
WCAD Value
$683,343
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 $265,128 and $652,714. 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 $328,264

Adjusted -$130,360 for 463 sqft less living space and +$14,210 for being newer. Net adjustment: -$116,150.

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 $265,128

Adjusted -$181,040 for 643 sqft less living space and +$14,210 for being newer. Net adjustment: -$166,830.

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 $652,714

Adjusted +$22,243 for 79 sqft more living space and +$17,762 for being newer. Net adjustment: +$40,005.

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 $622,363

Adjusted +$23,932 for 85 sqft more living space. Net adjustment: +$23,932.

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 $543,288

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

The Neighborhood

This home is valued 52.0% 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

outlier high
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$683,343
Median
$449,628

This home is +52.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,216 across all districts. With a homestead exemption claimed, that drops to $11,569 — saving $1,647 per year. That's $964 per month a buyer should budget. The assessed value increased +3.3% vs the subdivision average of -2.9%. This above-average increase gives a protest opportunity score of 31 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$7,427
Williamson CountyCounty0.3694%$2,525
Vista Oaks MUDMUD0.2131%$1,456
Austin Community Collegespecial0.1034%$707
Williamson County ESD #9 - Round RockESD0.0999%$683
Williamson County FM/RdCounty0.0443%$303
Upper Brushy Creek WCIDWater0.0170%$116
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$13,216
31 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $543,288 would pay approximately $3,391 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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