Beta Williamson County, TX only — data and coverage are limited during early access.

4007 VISTA ISLE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,951 sqftBuilt 1996

Property at a Glance

This home is estimated between $334,930 and $753,145, with a best estimate of $692,165. 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

$334,930 $753,145
Best Estimate
$692,165
WCAD Value
$640,008
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 $334,930 and $753,145. 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 $398,066

Adjusted -$42,796 for 152 sqft less living space and -$3,552 for being older. Net adjustment: -$46,348.

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 $334,930

Adjusted -$93,476 for 332 sqft less living space and -$3,552 for being older. Net adjustment: -$97,028.

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 $722,516

Adjusted +$109,807 for 390 sqft more living space. Net adjustment: +$109,807.

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 $692,165

Adjusted +$111,496 for 396 sqft more living space and -$17,762 for being older. Net adjustment: +$93,734.

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 $753,145

Adjusted +$87,564 for 311 sqft more living space and -$17,762 for being older. Net adjustment: +$69,802.

The Neighborhood

This home is valued 42.3% 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
$640,008
Median
$449,628

This home is +42.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,378 across all districts. With a homestead exemption claimed, that drops to $10,738 — saving $1,640 per year. That's $895 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%$6,956
Williamson CountyCounty0.3694%$2,364
Vista Oaks MUDMUD0.2131%$1,364
Austin Community Collegespecial0.1034%$662
Williamson County ESD #9 - Round RockESD0.0999%$639
Williamson County FM/RdCounty0.0443%$284
Upper Brushy Creek WCIDWater0.0170%$109
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$12,378

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $692,165 would pay approximately $4,320 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.

View full property details