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8010 MOZART ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,218 sqftBuilt 2018

Property at a Glance

This home is estimated between $355,104 and $472,093, with a best estimate of $450,063. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$355,104 $472,093
Best Estimate
$450,063
WCAD Value
$420,296
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 $355,104 and $472,093. 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 $472,093

Adjusted +$108,242 for 512 sqft more living space. Net adjustment: +$108,242.

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 $355,104

Adjusted -$97,883 for 463 sqft less living space. Net adjustment: -$97,883.

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 $461,831

Adjusted +$42,705 for 202 sqft more living space. Net adjustment: +$42,705.

8305 PAOLA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,328 sqft Built 2020
Raw Value $414,793
Adjusted Value $387,081

Adjusted -$23,255 for 110 sqft less living space and -$4,457 for being older. Net adjustment: -$27,712.

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 $450,063

Adjusted +$80,970 for 383 sqft more living space. Net adjustment: +$80,970.

The Neighborhood

This home is valued 3.4% 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
$420,296
Median
$406,354

This home is +3.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,675 across all districts. With a homestead exemption claimed, that drops to $7,910 — saving $1,765 per year. That's $659 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%$5,065
Siena MUD #1MUD0.5250%$2,207
Williamson CountyCounty0.3694%$1,553
Williamson County ESD #3 - HuttoESD0.1000%$420
Williamson County FM/RdCounty0.0443%$186
EWC Higher Ed Centerspecial0.0409%$172
Upper Brushy Creek WCIDWater0.0170%$71
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,675

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $450,063 would pay approximately $2,809 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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