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3120 BIANCO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed3 bath2,964 sqftBuilt 2020

Property at a Glance

This home is estimated between $545,463 and $677,777, with a best estimate of $614,265. 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

$545,463 $677,777
Best Estimate
$614,265
WCAD Value
$556,640
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 $545,463 and $677,777. 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 $638,513

Adjusted +$163,319 for 750 sqft more living space and -$56 for being older. Net adjustment: +$163,263.

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 $545,463

Adjusted -$26,131 for 120 sqft less living space. Net adjustment: -$26,131.

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 $614,265

Adjusted +$115,412 for 530 sqft more living space and +$28 for being newer. Net adjustment: +$115,440.

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 $563,173

Adjusted +$16,114 for 74 sqft more living space and +$28 for being newer. Net adjustment: +$16,142.

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 $677,777

Adjusted +$76,215 for 350 sqft more living space. Net adjustment: +$76,215.

The Neighborhood

This home is valued 28.6% 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
$556,640
Median
$432,756

This home is +28.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,015 across all districts. With a homestead exemption claimed, that drops to $8,662 — saving $1,353 per year. That's $722 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%$4,971
Round RockCity0.3720%$2,071
Williamson CountyCounty0.3694%$2,056
Austin Community Collegespecial0.1034%$576
Williamson County FM/RdCounty0.0443%$247
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,015

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $614,265 would pay approximately $3,834 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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