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

4005 SPRINGWILLOW LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,751 sqftBuilt 1996

Property at a Glance

This home is estimated between $392,891 and $466,153, with a best estimate of $427,067. That places the property below 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

$392,891 $466,153
Best Estimate
$427,067
WCAD Value
$389,233
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 $392,891 and $466,153 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,584 sqft Built 1995
Raw Value $381,657
Adjusted Value $432,229

Adjusted +$47,020 for 167 sqft more living space and +$3,552 for being newer. Net adjustment: +$50,572.

3 bed 2 bath 1,585 sqft Built 1997
Raw Value $383,881
Adjusted Value $427,067

Adjusted +$46,738 for 166 sqft more living space and -$3,552 for being older. Net adjustment: +$43,186.

3 bed 2 bath 1,675 sqft Built 1995
Raw Value $367,941
Adjusted Value $392,891

Adjusted +$21,398 for 76 sqft more living space and +$3,552 for being newer. Net adjustment: +$24,950.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $412,600

Adjusted -$35,476 for 126 sqft less living space and +$42,629 for being newer. Net adjustment: +$7,153.

3 bed 2 bath 1,550 sqft Built 1984
Raw Value $366,931
Adjusted Value $466,153

Adjusted +$56,593 for 201 sqft more living space and +$42,629 for being newer. Net adjustment: +$99,222.

The Neighborhood

This home is valued 13.4% below the L494500D - Vista Oaks Sec 5B Ph 2 & SEC 5C median of $449,628. That positions it competitively for buyers comparing within the neighborhood. 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
$389,233
Median
$449,628

This home is -13.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,528 across all districts. With a homestead exemption claimed, that drops to $5,935 — saving $1,593 per year. That's $495 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%$4,231
Williamson CountyCounty0.3694%$1,438
Vista Oaks MUDMUD0.2131%$829
Austin Community Collegespecial0.1034%$402
Williamson County ESD #9 - Round RockESD0.0999%$389
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9341%$7,528

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $427,067 would pay approximately $2,666 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