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1504 SAM BASS RD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

2 bed1 bath840 sqftBuilt 1940

Property at a Glance

This home is estimated between $-199,754 and $562,764, with a best estimate of $362,872. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$-199,754 $562,764
Best Estimate
$362,872
WCAD Value
$104,519
Low Confidence

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

There are 5 comparable properties within range, but none are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $-199,754 and $562,764 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,364 sqft Built 1977
Raw Value $736,252
Adjusted Value $362,872

Adjusted -$134,543 for 524 sqft less living space and -$114,417 for being older and -$124,420 for no garage. Net adjustment: -$373,380.

3 bed 2 bath 1,938 sqft Built 1971
Raw Value $670,001
Adjusted Value $167,794

Adjusted -$281,924 for 1,098 sqft less living space and -$95,863 for being older and -$124,420 for no garage. Net adjustment: -$502,207.

3 bed 2 bath 2,103 sqft Built 1970
Raw Value $1,104,243
Adjusted Value $562,764

Adjusted -$324,289 for 1,263 sqft less living space and -$92,770 for being older and -$124,420 for no garage. Net adjustment: -$541,479.

3 bed 2 bath 1,756 sqft Built 1980
Raw Value $868,751
Adjusted Value $509,864

Adjusted -$235,193 for 916 sqft less living space and -$123,694 for being older. Net adjustment: -$358,887.

2 bed 2 bath 2,004 sqft Built 2016
Raw Value $458,554
Adjusted Value $-199,754

Adjusted -$298,870 for 1,164 sqft less living space and -$235,018 for being older and -$124,420 for no garage. Net adjustment: -$658,308.

The Neighborhood

This home is valued 67.3% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier low
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$104,519
Median
$319,256

This home is -67.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $1,768 across all districts. With a homestead exemption claimed, that drops to $872 — saving $896 per year. That's $73 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%$877
Round RockCity0.3720%$365
Williamson CountyCounty0.3694%$363
Austin Community Collegespecial0.1034%$102
Williamson County FM/RdCounty0.0443%$44
Upper Brushy Creek WCIDWater0.0170%$17
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$1,768

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $362,872 would pay approximately $2,265 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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