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3124 BIANCO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed3 bath3,084 sqftBuilt 2020

Property at a Glance

This home is estimated between $589,304 and $703,908, with a best estimate of $642,621. 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

$589,304 $703,908
Best Estimate
$642,621
WCAD Value
$571,594
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 $589,304 and $703,908. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $640,396

Adjusted +$141,543 for 650 sqft more living space and +$28 for being newer. Net adjustment: +$141,571.

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 $589,304

Adjusted +$42,245 for 194 sqft more living space and +$28 for being newer. Net adjustment: +$42,273.

3129 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2,614 sqft Built 2020
Raw Value $601,562
Adjusted Value $703,908

Adjusted +$102,346 for 470 sqft more living space. Net adjustment: +$102,346.

3136 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 2,480 sqft Built 2021
Raw Value $511,067
Adjusted Value $642,621

Adjusted +$131,526 for 604 sqft more living space and +$28 for being newer. Net adjustment: +$131,554.

3104 BIANCO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 2,320 sqft Built 2020
Raw Value $495,480
Adjusted Value $661,847

Adjusted +$166,367 for 764 sqft more living space. Net adjustment: +$166,367.

The Neighborhood

This home is valued 32.1% 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
$571,594
Median
$432,756

This home is +32.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,285 across all districts. With a homestead exemption claimed, that drops to $8,929 — saving $1,356 per year. That's $744 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%$5,105
Round RockCity0.3720%$2,126
Williamson CountyCounty0.3694%$2,112
Austin Community Collegespecial0.1034%$591
Williamson County FM/RdCounty0.0443%$253
Upper Brushy Creek WCIDWater0.0170%$97
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,285

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $642,621 would pay approximately $4,011 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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