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3120 LAGO WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

2 bed2 bath2,014 sqftBuilt 2021

Property at a Glance

This home is estimated between $420,814 and $454,686, with a best estimate of $426,751. That places the property below the R441515C - HERITAGE AT VIZCAYA median of $432,756, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$420,814 $454,686
Best Estimate
$426,751
WCAD Value
$444,233
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 $420,814 and $454,686. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3124 LAGO WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,243 sqft Built 2020
Raw Value $470,709
Adjusted Value $420,814

Adjusted -$49,867 for 229 sqft less living space and -$28 for being older. Net adjustment: -$49,895.

3128 LAGO WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,598 sqft Built 2020
Raw Value $364,127
Adjusted Value $454,686

Adjusted +$90,587 for 416 sqft more living space and -$28 for being older. Net adjustment: +$90,559.

5328 CORNETTO BLFS, ROUND ROCK, TX 78665
0.09 mi 100% similar Same subdivision
3 bed 2 bath 2,184 sqft Built 2021
Raw Value $475,437
Adjusted Value $438,418

Adjusted -$37,019 for 170 sqft less living space. Net adjustment: -$37,019.

5324 CORNETTO BLFS, ROUND ROCK, TX 78665
0.09 mi 100% similar Same subdivision
2 bed 2 bath 2,320 sqft Built 2022
Raw Value $493,357
Adjusted Value $426,751

Adjusted -$66,634 for 306 sqft less living space and +$28 for being newer. Net adjustment: -$66,606.

5318 CORNETTO BLFS, ROUND ROCK, TX 78665
0.09 mi 100% similar Same subdivision
2 bed 2 bath 2,249 sqft Built 2022
Raw Value $474,273
Adjusted Value $423,128

Adjusted -$51,173 for 235 sqft less living space and +$28 for being newer. Net adjustment: -$51,145.

The Neighborhood

This home is valued 2.7% 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
$444,233
Median
$432,756

This home is +2.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,233 across all districts. With a homestead exemption claimed, that drops to $6,680 — saving $1,553 per year. That's $557 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%$4,667
Round RockCity0.3720%$1,653
Williamson CountyCounty0.3694%$1,641
Williamson County FM/RdCounty0.0443%$197
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$8,233

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $426,751 would pay approximately $2,664 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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