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5609 SACCO ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed3 bath2,016 sqftBuilt 2018

Property at a Glance

This home is estimated between $312,400 and $491,538, with a best estimate of $377,591. 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

$312,400 $491,538
Best Estimate
$377,591
WCAD Value
$419,126
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 $312,400 and $491,538. 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 $429,388

Adjusted +$65,537 for 310 sqft more living space. Net adjustment: +$65,537.

8010 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,218 sqft Built 2018
Raw Value $420,296
Adjusted Value $377,591

Adjusted -$42,705 for 202 sqft less living space. Net adjustment: -$42,705.

7904 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,734 sqft Built 2018
Raw Value $431,921
Adjusted Value $491,538

Adjusted +$59,617 for 282 sqft more living space. Net adjustment: +$59,617.

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 $312,400

Adjusted -$140,587 for 665 sqft less living space. Net adjustment: -$140,587.

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 $344,376

Adjusted -$65,960 for 312 sqft less living space and -$4,457 for being older. Net adjustment: -$70,417.

The Neighborhood

This home is valued 3.1% 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
$419,126
Median
$406,354

This home is +3.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,647 across all districts. With a homestead exemption claimed, that drops to $7,883 — saving $1,764 per year. That's $657 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%$5,051
Siena MUD #1MUD0.5250%$2,200
Williamson CountyCounty0.3694%$1,548
Williamson County ESD #9 - Round RockESD0.0999%$419
Williamson County FM/RdCounty0.0443%$186
EWC Higher Ed Centerspecial0.0409%$171
Upper Brushy Creek WCIDWater0.0170%$71
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,647

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $377,591 would pay approximately $2,357 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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