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

3105 LAGO WAY, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed2 bath1,978 sqftBuilt 2019

Property at a Glance

This home is estimated between $392,278 and $438,762, with a best estimate of $418,594. 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

$392,278 $438,762
Best Estimate
$418,594
WCAD Value
$436,435
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 $392,278 and $438,762. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3116 LAGO WAY, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 2 bath 2,395 sqft Built 2020
Raw Value $483,055
Adjusted Value $392,278

Adjusted -$90,805 for 417 sqft less living space and +$28 for being newer. Net adjustment: -$90,777.

3100 LAGO WAY, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,976 sqft Built 2020
Raw Value $438,298
Adjusted Value $438,762

Adjusted +$436 for 2 sqft more living space and +$28 for being newer. Net adjustment: +$464.

3112 LAGO WAY, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,316 sqft Built 2020
Raw Value $487,948
Adjusted Value $414,374

Adjusted -$73,602 for 338 sqft less living space and +$28 for being newer. Net adjustment: -$73,574.

3113 LAGO WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,092 sqft Built 2019
Raw Value $443,418
Adjusted Value $418,594

Adjusted -$24,824 for 114 sqft less living space. Net adjustment: -$24,824.

3117 LAGO WAY, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 2 bath 2,055 sqft Built 2019
Raw Value $441,353
Adjusted Value $424,586

Adjusted -$16,767 for 77 sqft less living space. Net adjustment: -$16,767.

The Neighborhood

This home is in line with the R441515C - HERITAGE AT VIZCAYA median of $432,756. 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
$436,435
Median
$432,756

This home is +0.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,089 across all districts. With a homestead exemption claimed, that drops to $6,537 — saving $1,552 per year. That's $545 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%$4,585
Round RockCity0.3720%$1,624
Williamson CountyCounty0.3694%$1,612
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$8,089

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $418,594 would pay approximately $2,613 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