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3309 BIANCO TER, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,462 sqftBuilt 2018

Property at a Glance

This home is estimated between $436,204 and $563,918, with a best estimate of $506,361. 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

$436,204 $563,918
Best Estimate
$506,361
WCAD Value
$502,742
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $436,204 and $563,918. More comparables in the same subdivision would strengthen this estimate.

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 $529,254

Adjusted +$54,004 for 248 sqft more living space. Net adjustment: +$54,004.

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 $436,204

Adjusted -$135,446 for 622 sqft less living space and +$56 for being newer. Net adjustment: -$135,390.

3 bed 2 bath 2,216 sqft Built 2020
Raw Value $419,216
Adjusted Value $472,841

Adjusted +$53,569 for 246 sqft more living space and +$56 for being newer. Net adjustment: +$53,625.

3337 BIANCO TER, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,873 sqft Built 2019
Raw Value $435,630
Adjusted Value $563,918

Adjusted +$128,260 for 589 sqft more living space and +$28 for being newer. Net adjustment: +$128,288.

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 $506,361

Adjusted +$7,839 for 36 sqft more living space and +$28 for being newer. Net adjustment: +$7,867.

The Neighborhood

This home is valued 16.2% 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
$502,742
Median
$432,756

This home is +16.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,318 across all districts. With a homestead exemption claimed, that drops to $7,754 — saving $1,564 per year. That's $646 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%$5,282
Round RockCity0.3720%$1,870
Williamson CountyCounty0.3694%$1,857
Williamson County FM/RdCounty0.0443%$223
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$9,318

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $506,361 would pay approximately $3,161 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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