Beta Williamson County, TX only — data and coverage are limited during early access.

3300 BIANCO TER, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed3 bath2,305 sqftBuilt 2018

Property at a Glance

This home is estimated between $402,016 and $495,066, with a best estimate of $470,818. 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

$402,016 $495,066
Best Estimate
$470,818
WCAD Value
$484,898
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 $402,016 and $495,066. 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 $495,066

Adjusted +$19,816 for 91 sqft more living space. Net adjustment: +$19,816.

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 $402,016

Adjusted -$169,634 for 779 sqft less living space and +$56 for being newer. Net adjustment: -$169,578.

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 $472,173

Adjusted -$26,349 for 121 sqft less living space and +$28 for being newer. Net adjustment: -$26,321.

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 $470,818

Adjusted -$28,091 for 129 sqft less living space and +$84 for being newer. Net adjustment: -$28,007.

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 $419,726

Adjusted -$127,389 for 585 sqft less living space and +$84 for being newer. Net adjustment: -$127,305.

The Neighborhood

This home is valued 12.0% 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

typical
638 Properties
$432,756 Median Value
-8.1% YoY Change
5% Have Pool
100% Have Garage
This Home
$484,898
Median
$432,756

This home is +12.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,987 across all districts. With a homestead exemption claimed, that drops to $7,427 — saving $1,560 per year. That's $619 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
Georgetown ISDSchool1.0506%$5,094
Round RockCity0.3720%$1,804
Williamson CountyCounty0.3694%$1,791
Williamson County FM/RdCounty0.0443%$215
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$8,987

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $470,818 would pay approximately $2,939 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.

View full property details