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5916 AGOSTINO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,722 sqftBuilt 2018

Property at a Glance

This home is estimated between $270,393 and $353,545, with a best estimate of $327,166. 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

$270,393 $353,545
Best Estimate
$327,166
WCAD Value
$358,976
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 $270,393 and $353,545. 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 $327,166

Adjusted -$26,003 for 123 sqft less living space and +$6,686 for being newer. Net adjustment: -$19,317.

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 $337,348

Adjusted -$102,745 for 486 sqft less living space and +$8,914 for being newer. Net adjustment: -$93,831.

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 $270,393

Adjusted -$153,483 for 726 sqft less living space and +$2,229 for being newer. Net adjustment: -$151,254.

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 $353,545

Adjusted +$3,383 for 16 sqft more living space and +$2,229 for being newer. Net adjustment: +$5,612.

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 $326,638

Adjusted -$28,117 for 133 sqft less living space and +$6,686 for being newer. Net adjustment: -$21,431.

The Neighborhood

This home is valued 11.7% 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
$358,976
Median
$406,354

This home is -11.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,263 across all districts. With a homestead exemption claimed, that drops to $6,509 — saving $1,754 per year. That's $542 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%$4,326
Siena MUD #1MUD0.5250%$1,885
Williamson CountyCounty0.3694%$1,326
Williamson County ESD #3 - HuttoESD0.1000%$359
Williamson County FM/RdCounty0.0443%$159
EWC Higher Ed Centerspecial0.0409%$147
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,263

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $327,166 would pay approximately $2,042 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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