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

8061 MOZART ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,431 sqftBuilt 2016

Property at a Glance

This home is estimated between $297,397 and $443,567, with a best estimate of $393,867. That places the property below the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$297,397 $443,567
Best Estimate
$393,867
WCAD Value
$438,455
High Confidence

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

Based on 5 comparable properties in H121413C - SIENA, this home's estimated market value is between $297,397 and $443,567. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

6041 ROMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,748 sqft Built 2014
Raw Value $456,427
Adjusted Value $393,867

Adjusted -$67,017 for 317 sqft less living space and +$4,457 for being newer. Net adjustment: -$62,560.

8104 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2015
Raw Value $423,580
Adjusted Value $443,567

Adjusted +$17,758 for 84 sqft more living space and +$2,229 for being newer. Net adjustment: +$19,987.

5637 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,544 sqft Built 2017
Raw Value $338,329
Adjusted Value $312,211

Adjusted -$23,889 for 113 sqft less living space and -$2,229 for being older. Net adjustment: -$26,118.

8050 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,610 sqft Built 2016
Raw Value $335,239
Adjusted Value $297,397

Adjusted -$37,842 for 179 sqft less living space. Net adjustment: -$37,842.

8379 PAOLA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,313 sqft Built 2015
Raw Value $593,874
Adjusted Value $409,640

Adjusted -$186,463 for 882 sqft less living space and +$2,229 for being newer. Net adjustment: -$184,234.

The Neighborhood

This home is valued 7.9% above the H121413C - SIENA median of $406,354. With 1,611 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$438,455
Median
$406,354

This home is +7.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,093 across all districts. With a homestead exemption claimed, that drops to $8,324 — saving $1,769 per year. That's $694 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
Hutto ISDSchool1.2052%$5,284
Siena MUD #1MUD0.5250%$2,302
Williamson CountyCounty0.3694%$1,620
Williamson County ESD #3 - HuttoESD0.1000%$438
Williamson County FM/RdCounty0.0443%$194
EWC Higher Ed Centerspecial0.0409%$179
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,093

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $393,867 would pay approximately $2,459 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