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5925 AGOSTINO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,821 sqftBuilt 2020

Property at a Glance

This home is estimated between $295,779 and $378,931, with a best estimate of $352,552. 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

$295,779 $378,931
Best Estimate
$352,552
WCAD Value
$436,895
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 $295,779 and $378,931. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

6108 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,845 sqft Built 2015
Raw Value $346,483
Adjusted Value $352,552

Adjusted -$5,074 for 24 sqft less living space and +$11,143 for being newer. Net adjustment: +$6,069.

8206 AREZZO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,208 sqft Built 2014
Raw Value $431,179
Adjusted Value $362,736

Adjusted -$81,815 for 387 sqft less living space and +$13,372 for being newer. Net adjustment: -$68,443.

5857 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,448 sqft Built 2017
Raw Value $421,647
Adjusted Value $295,779

Adjusted -$132,554 for 627 sqft less living space and +$6,686 for being newer. Net adjustment: -$125,868.

7945 BASSANO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,706 sqft Built 2017
Raw Value $347,933
Adjusted Value $378,931

Adjusted +$24,312 for 115 sqft more living space and +$6,686 for being newer. Net adjustment: +$30,998.

6117 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,855 sqft Built 2015
Raw Value $348,069
Adjusted Value $352,024

Adjusted -$7,188 for 34 sqft less living space and +$11,143 for being newer. Net adjustment: +$3,955.

The Neighborhood

This home is valued 7.5% 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
$436,895
Median
$406,354

This home is +7.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,057 across all districts. With a homestead exemption claimed, that drops to $8,289 — saving $1,768 per year. That's $691 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%$5,265
Siena MUD #1MUD0.5250%$2,294
Williamson CountyCounty0.3694%$1,614
Williamson County ESD #3 - HuttoESD0.1000%$437
Williamson County FM/RdCounty0.0443%$194
EWC Higher Ed Centerspecial0.0409%$179
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,057

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $352,552 would pay approximately $2,201 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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