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7904 MOZART ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,734 sqftBuilt 2018

Property at a Glance

This home is estimated between $252,782 and $369,770, with a best estimate of $359,509. 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

$252,782 $369,770
Best Estimate
$359,509
WCAD Value
$431,921
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 $252,782 and $369,770. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

5832 PARMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,706 sqft Built 2018
Raw Value $363,851
Adjusted Value $369,770

Adjusted +$5,919 for 28 sqft more living space. Net adjustment: +$5,919.

5621 SAMBUCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,681 sqft Built 2018
Raw Value $452,987
Adjusted Value $252,782

Adjusted -$200,205 for 947 sqft less living space. Net adjustment: -$200,205.

5609 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 3 bath 2,016 sqft Built 2018
Raw Value $419,126
Adjusted Value $359,509

Adjusted -$59,617 for 282 sqft less living space. Net adjustment: -$59,617.

5625 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,835 sqft Built 2018
Raw Value $369,093
Adjusted Value $347,741

Adjusted -$21,352 for 101 sqft less living space. Net adjustment: -$21,352.

5644 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,596 sqft Built 2018
Raw Value $339,098
Adjusted Value $368,272

Adjusted +$29,174 for 138 sqft more living space. Net adjustment: +$29,174.

The Neighborhood

This home is valued 6.3% 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
$431,921
Median
$406,354

This home is +6.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,942 across all districts. With a homestead exemption claimed, that drops to $8,175 — saving $1,767 per year. That's $681 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%$5,206
Siena MUD #1MUD0.5250%$2,268
Williamson CountyCounty0.3694%$1,596
Williamson County ESD #3 - HuttoESD0.1000%$432
Williamson County FM/RdCounty0.0443%$191
EWC Higher Ed Centerspecial0.0409%$177
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,942

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $359,509 would pay approximately $2,244 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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