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8017 MOZART ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,718 sqftBuilt 2016

Property at a Glance

This home is estimated between $325,730 and $612,410, with a best estimate of $454,542. 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

$325,730 $612,410
Best Estimate
$454,542
WCAD Value
$355,340
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 $325,730 and $612,410. 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 $454,542

Adjusted -$6,342 for 30 sqft less living space and +$4,457 for being newer. Net adjustment: -$1,885.

8128 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,034 sqft Built 2015
Raw Value $465,577
Adjusted Value $612,410

Adjusted +$144,604 for 684 sqft more living space and +$2,229 for being newer. Net adjustment: +$146,833.

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 $504,242

Adjusted +$78,433 for 371 sqft more living space and +$2,229 for being newer. Net adjustment: +$80,662.

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 $325,730

Adjusted -$51,372 for 243 sqft less living space and -$2,229 for being older. Net adjustment: -$53,601.

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 $331,227

Adjusted -$96,191 for 455 sqft less living space and -$2,229 for being older. Net adjustment: -$98,420.

The Neighborhood

This home is valued 12.6% below the H121413C - SIENA median of $406,354. That positions it competitively for buyers comparing within the neighborhood. 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
$355,340
Median
$406,354

This home is -12.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,179 across all districts. With a homestead exemption claimed, that drops to $6,426 — saving $1,753 per year. That's $536 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%$4,283
Siena MUD #1MUD0.5250%$1,866
Williamson CountyCounty0.3694%$1,313
Williamson County ESD #3 - HuttoESD0.1000%$355
Williamson County FM/RdCounty0.0443%$158
EWC Higher Ed Centerspecial0.0409%$145
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,179

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $454,542 would pay approximately $2,837 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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