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

4203 KINGSBURG DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,592 sqftBuilt 1999

Property at a Glance

This home is estimated between $410,688 and $792,766, with a best estimate of $509,261. 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

$410,688 $792,766
Best Estimate
$509,261
WCAD Value
$477,388
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C. The estimated range of $410,688 and $792,766 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 3,097 sqft Built 2000
Raw Value $556,425
Adjusted Value $410,688

Adjusted -$142,185 for 505 sqft less living space and -$3,552 for being older. Net adjustment: -$145,737.

4 bed 2 bath 3,110 sqft Built 2000
Raw Value $572,254
Adjusted Value $422,856

Adjusted -$145,846 for 518 sqft less living space and -$3,552 for being older. Net adjustment: -$149,398.

3 bed 2 bath 2,221 sqft Built 2014
Raw Value $741,595
Adjusted Value $792,766

Adjusted +$104,457 for 371 sqft more living space and -$53,286 for being older. Net adjustment: +$51,171.

3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $509,261

Adjusted +$96,855 for 344 sqft more living space and -$67,495 for being older. Net adjustment: +$29,360.

3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $640,337

Adjusted +$258,186 for 917 sqft more living space and +$14,210 for being newer. Net adjustment: +$272,396.

The Neighborhood

This home is valued 6.2% 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

typical
904 Properties
$449,628 Median Value
-2.9% YoY Change
1% Have Pool
99% Have Garage
This Home
$477,388
Median
$449,628

This home is +6.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,233 across all districts. With a homestead exemption claimed, that drops to $7,623 — saving $1,610 per year. That's $635 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%$5,189
Williamson CountyCounty0.3694%$1,764
Vista Oaks MUDMUD0.2131%$1,017
Austin Community Collegespecial0.1034%$494
Williamson County ESD #9 - Round RockESD0.0999%$477
Williamson County FM/RdCounty0.0443%$212
Upper Brushy Creek WCIDWater0.0170%$81
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$9,233

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $509,261 would pay approximately $3,179 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