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

400 YUCCA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,966 sqftBuilt 1983

Property at a Glance

This home is estimated between $421,038 and $515,178, with a best estimate of $449,011. That places the property above the R120X - Round Rock West Above 45 - Duplex median of $434,714, in a neighborhood that declined 1.8% over the past year.

Estimated Value Range

$421,038 $515,178
Best Estimate
$449,011
WCAD Value
$395,655
Low Confidence

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

There are 5 comparable properties within range, but none are in R120X - Round Rock West Above 45 - Duplex. The estimated range of $421,038 and $515,178 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,044 sqft Built 1981
Raw Value $455,252
Adjusted Value $444,402

Adjusted -$15,860 for 78 sqft less living space and +$5,010 for being newer. Net adjustment: -$10,850.

3 bed 2 bath 1,971 sqft Built 1975
Raw Value $496,156
Adjusted Value $515,178

Adjusted -$1,017 for 5 sqft less living space and +$20,039 for being newer. Net adjustment: +$19,022.

3 bed 2 bath 1,877 sqft Built 1984
Raw Value $405,447
Adjusted Value $421,038

Adjusted +$18,096 for 89 sqft more living space and -$2,505 for being older. Net adjustment: +$15,591.

4 bed 2 bath 1,934 sqft Built 1978
Raw Value $484,482
Adjusted Value $503,513

Adjusted +$6,507 for 32 sqft more living space and +$12,524 for being newer. Net adjustment: +$19,031.

3 bed 2 bath 1,550 sqft Built 1984
Raw Value $366,931
Adjusted Value $449,011

Adjusted +$84,585 for 416 sqft more living space and -$2,505 for being older. Net adjustment: +$82,080.

The Neighborhood

This home is valued 9.0% below the R120X - Round Rock West Above 45 - Duplex median of $434,714. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 1.8% over the past year.

R120X - Round Rock West Above 45 - Duplex

typical
295 Properties
$434,714 Median Value
-1.8% YoY Change
0% Have Pool
84% Have Garage
This Home
$395,655
Median
$434,714

This home is -9.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,119 across all districts. With a homestead exemption claimed, that drops to $5,795 — saving $1,324 per year. That's $483 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
Round Rock ISDSchool0.8931%$3,534
Round RockCity0.3720%$1,472
Williamson CountyCounty0.3694%$1,462
Austin Community Collegespecial0.1034%$409
Williamson County FM/RdCounty0.0443%$175
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,119

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $449,011 would pay approximately $2,803 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