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3129 BIANCO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2,614 sqftBuilt 2020

Property at a Glance

This home is estimated between $469,248 and $562,297, with a best estimate of $538,049. That places the property above the R441515C - HERITAGE AT VIZCAYA median of $432,756, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$469,248 $562,297
Best Estimate
$538,049
WCAD Value
$601,562
High Confidence

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

Based on 5 comparable properties in R441515C - HERITAGE AT VIZCAYA, this home's estimated market value is between $469,248 and $562,297. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3215 BIANCO TER, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,214 sqft Built 2018
Raw Value $475,250
Adjusted Value $562,297

Adjusted +$87,103 for 400 sqft more living space and -$56 for being older. Net adjustment: +$87,047.

3124 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 3,084 sqft Built 2020
Raw Value $571,594
Adjusted Value $469,248

Adjusted -$102,346 for 470 sqft less living space. Net adjustment: -$102,346.

3223 BIANCO TER, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 2,426 sqft Built 2019
Raw Value $498,494
Adjusted Value $539,405

Adjusted +$40,939 for 188 sqft more living space and -$28 for being older. Net adjustment: +$40,911.

3105 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,434 sqft Built 2021
Raw Value $498,825
Adjusted Value $538,049

Adjusted +$39,196 for 180 sqft more living space and +$28 for being newer. Net adjustment: +$39,224.

3144 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 2,890 sqft Built 2021
Raw Value $547,031
Adjusted Value $486,958

Adjusted -$60,101 for 276 sqft less living space and +$28 for being newer. Net adjustment: -$60,073.

The Neighborhood

This home is valued 39.0% above the R441515C - HERITAGE AT VIZCAYA median of $432,756. With 638 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.1% over the past year.

R441515C - HERITAGE AT VIZCAYA

above average
638 Properties
$432,756 Median Value
-8.1% YoY Change
5% Have Pool
100% Have Garage
This Home
$601,562
Median
$432,756

This home is +39.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,824 across all districts. With a homestead exemption claimed, that drops to $9,462 — saving $1,362 per year. That's $789 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%$5,373
Round RockCity0.3720%$2,238
Williamson CountyCounty0.3694%$2,222
Austin Community Collegespecial0.1034%$622
Williamson County FM/RdCounty0.0443%$267
Upper Brushy Creek WCIDWater0.0170%$102
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,824

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $538,049 would pay approximately $3,358 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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