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3128 LAGO WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

2 bed2 bath1,598 sqftBuilt 2020

Property at a Glance

This home is estimated between $319,431 and $353,674, with a best estimate of $336,192. 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

$319,431 $353,674
Best Estimate
$336,192
WCAD Value
$364,127
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 $319,431 and $353,674. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3120 LAGO WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 2,014 sqft Built 2021
Raw Value $444,233
Adjusted Value $353,674

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

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 $336,192

Adjusted -$157,221 for 722 sqft less living space and +$56 for being newer. Net adjustment: -$157,165.

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 $332,568

Adjusted -$141,761 for 651 sqft less living space and +$56 for being newer. Net adjustment: -$141,705.

5224 CORNETTO BLFS, ROUND ROCK, TX 78665
0.09 mi 100% similar Same subdivision
2 bed 2 bath 2,031 sqft Built 2022
Raw Value $445,132
Adjusted Value $350,899

Adjusted -$94,289 for 433 sqft less living space and +$56 for being newer. Net adjustment: -$94,233.

5312 CORNETTO BLFS, ROUND ROCK, TX 78665
0.09 mi 100% similar Same subdivision
2 bed 2 bath 2,499 sqft Built 2022
Raw Value $515,575
Adjusted Value $319,431

Adjusted -$196,200 for 901 sqft less living space and +$56 for being newer. Net adjustment: -$196,144.

The Neighborhood

This home is valued 15.9% below the R441515C - HERITAGE AT VIZCAYA median of $432,756. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.1% over the past year.

R441515C - HERITAGE AT VIZCAYA

below average
638 Properties
$432,756 Median Value
-8.1% YoY Change
5% Have Pool
100% Have Garage
This Home
$364,127
Median
$432,756

This home is -15.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,749 across all districts. With a homestead exemption claimed, that drops to $5,211 — saving $1,538 per year. That's $434 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%$3,826
Round RockCity0.3720%$1,355
Williamson CountyCounty0.3694%$1,345
Williamson County FM/RdCounty0.0443%$161
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$6,749

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $336,192 would pay approximately $2,099 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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