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6011 AGOSTINO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,290 sqftBuilt 2018

Property at a Glance

This home is estimated between $397,297 and $682,717, with a best estimate of $484,751. 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

$397,297 $682,717
Best Estimate
$484,751
WCAD Value
$484,466
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in H121413C - SIENA. The estimated range of $397,297 and $682,717 should be treated as a rough guide.

Comparable Properties (5)

6016 AGOSTINO CV, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,709 sqft Built 2018
Raw Value $361,922
Adjusted Value $484,751

Adjusted +$122,829 for 581 sqft more living space. Net adjustment: +$122,829.

3 bed 2 bath 1,802 sqft Built 2020
Raw Value $372,255
Adjusted Value $470,966

Adjusted +$103,168 for 488 sqft more living space and -$4,457 for being older. Net adjustment: +$98,711.

4 bed 2 bath 1,248 sqft Built 2020
Raw Value $466,885
Adjusted Value $682,717

Adjusted +$220,289 for 1,042 sqft more living space and -$4,457 for being older. Net adjustment: +$215,832.

3 bed 2 bath 1,392 sqft Built 2015
Raw Value $361,959
Adjusted Value $558,491

Adjusted +$189,846 for 898 sqft more living space and +$6,686 for being newer. Net adjustment: +$196,532.

4 bed 2 bath 2,749 sqft Built 1976
Raw Value $411,694
Adjusted Value $397,297

Adjusted -$97,037 for 459 sqft less living space and +$93,602 for being newer and -$10,962 for no pool. Net adjustment: -$14,397.

The Neighborhood

This home is valued 19.2% 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

above average
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$484,466
Median
$406,354

This home is +19.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,152 across all districts. With a homestead exemption claimed, that drops to $9,375 — saving $1,777 per year. That's $781 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%$5,839
Siena MUD #1MUD0.5250%$2,543
Williamson CountyCounty0.3694%$1,790
Williamson County ESD #3 - HuttoESD0.1000%$484
Williamson County FM/RdCounty0.0443%$215
EWC Higher Ed Centerspecial0.0409%$198
Upper Brushy Creek WCIDWater0.0170%$82
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$11,152

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $484,751 would pay approximately $3,026 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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