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3111 SAM BASS RD, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,448 sqftBuilt 1979

Property at a Glance

This home is estimated between $277,175 and $780,467, with a best estimate of $602,480. That places the property below the R202681C - Tonkawa & Oak Springs median of $851,894, in a neighborhood that appreciated 3.7% over the past year.

Estimated Value Range

$277,175 $780,467
Best Estimate
$602,480
WCAD Value
$836,204
Low Confidence

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

There are 5 comparable properties within range, but none are in R202681C - Tonkawa & Oak Springs. The estimated range of $277,175 and $780,467 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 $780,467

Adjusted +$29,166 for 84 sqft more living space and +$15,049 for being newer. Net adjustment: +$44,215.

3 bed 2 bath 1,756 sqft Built 1980
Raw Value $868,751
Adjusted Value $754,284

Adjusted -$106,943 for 308 sqft less living space and -$7,524 for being older. Net adjustment: -$114,467.

3 bed 2 bath 1,938 sqft Built 1971
Raw Value $670,001
Adjusted Value $560,061

Adjusted -$170,136 for 490 sqft less living space and +$60,196 for being newer. Net adjustment: -$109,940.

3 bed 4 bath 1,645 sqft Built 1982
Raw Value $368,150
Adjusted Value $277,175

Adjusted -$68,402 for 197 sqft less living space and -$22,573 for being older. Net adjustment: -$90,975.

5 bed 3 bath 1,488 sqft Built 2001
Raw Value $781,907
Adjusted Value $602,480

Adjusted -$13,889 for 40 sqft less living space and -$165,538 for being older. Net adjustment: -$179,427.

The Neighborhood

This home is valued 1.8% below the R202681C - Tonkawa & Oak Springs median of $851,894. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.7% over the past year.

R202681C - Tonkawa & Oak Springs

typical
154 Properties
$851,894 Median Value
+3.7% YoY Change
7% Have Pool
92% Have Garage
This Home
$836,204
Median
$851,894

This home is -1.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,384 across all districts. With a homestead exemption claimed, that drops to $8,020 — saving $1,364 per year. That's $668 per month a buyer should budget. The assessed value increased +63.3% vs the subdivision average of +3.7%. 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
Round Rock ISDSchool0.8931%$5,487
Williamson CountyCounty0.3694%$2,270
Austin Community Collegespecial0.1034%$635
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$614
Williamson County FM/RdCounty0.0443%$272
Upper Brushy Creek WCIDWater0.0170%$104
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$9,384
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 $602,480 would pay approximately $3,761 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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