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4220 SAM BASS RD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

6 bed6 bath1,990 sqftBuilt 1985

Property at a Glance

This home is estimated between $563,187 and $570,987, with a best estimate of $570,987. That places the property below the G437X - Williamson Multifamily 3 or More Units median of $571,543, in a neighborhood that declined 9.1% over the past year.

Estimated Value Range

$563,187 $570,987
Best Estimate
$570,987
WCAD Value
$872,304
Low Confidence

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

There are 5 comparable properties within range, but none are in G437X - Williamson Multifamily 3 or More Units. The estimated range of $563,187 and $570,987 should be treated as a rough guide.

Comparable Properties (5)

6 bed 4 bath 1,824 sqft Built 1985
Raw Value $524,205
Adjusted Value $569,191

Adjusted +$44,986 for 166 sqft more living space. Net adjustment: +$44,986.

5 bed 4 bath 1,590 sqft Built 1985
Raw Value $462,588
Adjusted Value $570,987

Adjusted +$108,399 for 400 sqft more living space. Net adjustment: +$108,399.

5 bed 4 bath 1,590 sqft Built 1985
Raw Value $462,588
Adjusted Value $570,987

Adjusted +$108,399 for 400 sqft more living space. Net adjustment: +$108,399.

5 bed 4 bath 1,590 sqft Built 1985
Raw Value $462,588
Adjusted Value $570,987

Adjusted +$108,399 for 400 sqft more living space. Net adjustment: +$108,399.

5 bed 4 bath 1,590 sqft Built 1985
Raw Value $454,788
Adjusted Value $563,187

Adjusted +$108,399 for 400 sqft more living space. Net adjustment: +$108,399.

The Neighborhood

This home is valued 52.6% above the G437X - Williamson Multifamily 3 or More Units median of $571,543. With 231 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.1% over the past year.

G437X - Williamson Multifamily 3 or More Units

outlier high
231 Properties
$571,543 Median Value
-9.1% YoY Change
0% Have Pool
33% Have Garage
This Home
$872,304
Median
$571,543

This home is +52.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,093 across all districts. With a homestead exemption claimed, that drops to $11,431 — saving $1,662 per year. That's $953 per month a buyer should budget. The assessed value increased +37.6% vs the subdivision average of -9.1%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$8,269
Williamson CountyCounty0.3694%$2,811
Austin Community Collegespecial0.1034%$787
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$761
Williamson County FM/RdCounty0.0443%$337
Upper Brushy Creek WCIDWater0.0170%$129
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7211%$13,093
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $570,987 would pay approximately $3,564 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.

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