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5051 CASSIA WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,715 sqftBuilt 2017

Property at a Glance

This home is estimated between $379,030 and $388,397, with a best estimate of $382,510. 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

$379,030 $388,397
Best Estimate
$382,510
WCAD Value
$454,860
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 $379,030 and $388,397. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

5100 CASSIA WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,619 sqft Built 2018
Raw Value $360,380
Adjusted Value $381,313

Adjusted +$20,905 for 96 sqft more living space and +$28 for being newer. Net adjustment: +$20,933.

5012 CASSIA WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,709 sqft Built 2016
Raw Value $377,751
Adjusted Value $379,030

Adjusted +$1,307 for 6 sqft more living space and -$28 for being older. Net adjustment: +$1,279.

5091 CASSIA WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 1,664 sqft Built 2018
Raw Value $377,263
Adjusted Value $388,397

Adjusted +$11,106 for 51 sqft more living space and +$28 for being newer. Net adjustment: +$11,134.

5059 CASSIA WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,712 sqft Built 2017
Raw Value $382,031
Adjusted Value $382,684

Adjusted +$653 for 3 sqft more living space. Net adjustment: +$653.

5072 CASSIA WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
2 bed 2 bath 1,607 sqft Built 2018
Raw Value $358,964
Adjusted Value $382,510

Adjusted +$23,518 for 108 sqft more living space and +$28 for being newer. Net adjustment: +$23,546.

The Neighborhood

This home is valued 5.1% 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
$454,860
Median
$432,756

This home is +5.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,184 across all districts. With a homestead exemption claimed, that drops to $6,850 — saving $1,334 per year. That's $571 per month a buyer should budget. The assessed value increased +3.8% vs the subdivision average of -8.1%. This above-average increase gives a protest opportunity score of 50 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,062
Round RockCity0.3720%$1,692
Williamson CountyCounty0.3694%$1,680
Austin Community Collegespecial0.1034%$470
Williamson County FM/RdCounty0.0443%$202
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,184
50 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $382,510 would pay approximately $2,388 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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