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

4021 MOCHA TRL, AUSTIN, TX 78728

AUSTIN, 78728 — williamson County

4 bed2 bath2,001 sqftBuilt 1997

Property at a Glance

This home is estimated between $294,014 and $547,544, with a best estimate of $386,685. That places the property above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358, in a neighborhood that declined 9.6% over the past year.

Estimated Value Range

$294,014 $547,544
Best Estimate
$386,685
WCAD Value
$352,569
High Confidence

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

Based on 5 comparable properties in R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN, this home's estimated market value is between $294,014 and $547,544. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4101 MOCHA TRL, AUSTIN, TX 78728
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,709 sqft Built 1996
Raw Value $322,138
Adjusted Value $386,685

Adjusted +$62,988 for 292 sqft more living space and +$1,559 for being newer. Net adjustment: +$64,547.

4017 MOCHA TRL, AUSTIN, TX 78728
0.01 mi 100% similar Same subdivision
4 bed 2 bath 2,404 sqft Built 1997
Raw Value $397,406
Adjusted Value $310,474

Adjusted -$86,932 for 403 sqft less living space. Net adjustment: -$86,932.

4105 MOCHA TRL, AUSTIN, TX 78728
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,402 sqft Built 1997
Raw Value $380,515
Adjusted Value $294,014

Adjusted -$86,501 for 401 sqft less living space. Net adjustment: -$86,501.

4013 MOCHA TRL, AUSTIN, TX 78728
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,255 sqft Built 1997
Raw Value $386,622
Adjusted Value $547,544

Adjusted +$160,922 for 746 sqft more living space. Net adjustment: +$160,922.

4109 MOCHA TRL, AUSTIN, TX 78728
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,709 sqft Built 1996
Raw Value $338,334
Adjusted Value $402,881

Adjusted +$62,988 for 292 sqft more living space and +$1,559 for being newer. Net adjustment: +$64,547.

The Neighborhood

This home is valued 25.3% above the R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN median of $281,358. With 1,006 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.6% over the past year.

R332479H - CHISHOLM VALLEY & NORTHRIDGE ACRES & WILLOW RUN

above average
1,006 Properties
$281,358 Median Value
-9.6% YoY Change
2% Have Pool
84% Have Garage
This Home
$352,569
Median
$281,358

This home is +25.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,231 across all districts. With a homestead exemption claimed, that drops to $4,915 — saving $1,316 per year. That's $410 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%$3,149
Williamson CountyCounty0.3694%$1,303
Wells Branch MUDMUD0.2400%$846
Austin Community Collegespecial0.1034%$365
Williamson County ESD #9 - Round RockESD0.0999%$352
Williamson County FM/RdCounty0.0443%$156
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7672%$6,231

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $386,685 would pay approximately $2,414 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