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7940 MOZART ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,048 sqftBuilt 2016

Property at a Glance

This home is estimated between $360,749 and $540,080, with a best estimate of $400,992. 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

$360,749 $540,080
Best Estimate
$400,992
WCAD Value
$442,228
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 $360,749 and $540,080. 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 $524,307

Adjusted +$63,423 for 300 sqft more living space and +$4,457 for being newer. Net adjustment: +$67,880.

7836 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,961 sqft Built 2017
Raw Value $379,331
Adjusted Value $395,495

Adjusted +$18,393 for 87 sqft more living space and -$2,229 for being older. Net adjustment: +$16,164.

5608 SAMBUCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,173 sqft Built 2017
Raw Value $429,647
Adjusted Value $400,992

Adjusted -$26,426 for 125 sqft less living space and -$2,229 for being older. Net adjustment: -$28,655.

5918 PARMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,227 sqft Built 2015
Raw Value $396,362
Adjusted Value $360,749

Adjusted -$37,842 for 179 sqft less living space and +$2,229 for being newer. Net adjustment: -$35,613.

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 $540,080

Adjusted -$56,023 for 265 sqft less living space and +$2,229 for being newer. Net adjustment: -$53,794.

The Neighborhood

This home is valued 8.8% 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
$442,228
Median
$406,354

This home is +8.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,179 across all districts. With a homestead exemption claimed, that drops to $8,410 — saving $1,769 per year. That's $701 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%$5,330
Siena MUD #1MUD0.5250%$2,322
Williamson CountyCounty0.3694%$1,634
Williamson County ESD #3 - HuttoESD0.1000%$442
Williamson County FM/RdCounty0.0443%$196
EWC Higher Ed Centerspecial0.0409%$181
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,179

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $400,992 would pay approximately $2,503 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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