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1520 SAM BASS RD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2,250 sqftBuilt 1979

Property at a Glance

This home is estimated between $472,186 and $1,078,634, with a best estimate of $988,131.

Estimated Value Range

$472,186 $1,078,634
Best Estimate
$988,131
WCAD Value
$818,524
Low Confidence

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

There are 5 comparable properties within range, but none are in R30SG - Service Garage-west Round Rock. The estimated range of $472,186 and $1,078,634 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,103 sqft Built 1970
Raw Value $1,104,243
Adjusted Value $1,078,634

Adjusted +$35,494 for 147 sqft more living space and -$910 for being older and -$60,193 for no garage. Net adjustment: -$25,609.

3 bed 2 bath 1,938 sqft Built 1971
Raw Value $670,001
Adjusted Value $684,333

Adjusted +$75,334 for 312 sqft more living space and -$809 for being older and -$60,193 for no garage. Net adjustment: +$14,332.

3 bed 2 bath 1,756 sqft Built 1980
Raw Value $868,751
Adjusted Value $988,131

Adjusted +$119,279 for 494 sqft more living space and +$101 for being newer. Net adjustment: +$119,380.

3 bed 2 bath 2,884 sqft Built 1980
Raw Value $1,149,849
Adjusted Value $996,868

Adjusted -$153,082 for 634 sqft less living space and +$101 for being newer. Net adjustment: -$152,981.

3 bed 4 bath 1,744 sqft Built 1982
Raw Value $349,707
Adjusted Value $472,186

Adjusted +$122,176 for 506 sqft more living space and +$303 for being newer. Net adjustment: +$122,479.

The Neighborhood

Subdivision comparison data is not available for this property.

Tax Analysis

The estimated annual property tax is $13,578 across all districts. With a homestead exemption claimed, that drops to $12,188 — saving $1,390 per year. That's $1,016 per month a buyer should budget. The assessed value increased +30.2%. This increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$6,740
Round RockCity0.3720%$2,807
Williamson CountyCounty0.3694%$2,788
Austin Community Collegespecial0.1034%$780
Williamson County FM/RdCounty0.0443%$335
Upper Brushy Creek WCIDWater0.0170%$128
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,578
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 $988,131 would pay approximately $6,168 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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