Beta Williamson County, TX only — data and coverage are limited during early access.

6003 AGOSTINO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,762 sqftBuilt 2019

Property at a Glance

This home is estimated between $266,931 and $491,462, with a best estimate of $388,612. 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

$266,931 $491,462
Best Estimate
$388,612
WCAD Value
$442,798
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 $266,931 and $491,462. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8412 PAOLA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,422 sqft Built 2016
Raw Value $399,775
Adjusted Value $266,931

Adjusted -$139,530 for 660 sqft less living space and +$6,686 for being newer. Net adjustment: -$132,844.

5918 MARINO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,447 sqft Built 2020
Raw Value $427,097
Adjusted Value $491,462

Adjusted +$66,594 for 315 sqft more living space and -$2,229 for being older. Net adjustment: +$64,365.

5929 MORIANO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,205 sqft Built 2017
Raw Value $567,133
Adjusted Value $477,936

Adjusted -$93,654 for 443 sqft less living space and +$4,457 for being newer. Net adjustment: -$89,197.

5812 LIGURIA CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,522 sqft Built 2019
Raw Value $337,874
Adjusted Value $388,612

Adjusted +$50,738 for 240 sqft more living space. Net adjustment: +$50,738.

5904 MORIANO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,197 sqft Built 2018
Raw Value $429,438
Adjusted Value $339,704

Adjusted -$91,963 for 435 sqft less living space and +$2,229 for being newer. Net adjustment: -$89,734.

The Neighborhood

This home is valued 9.0% 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
$442,798
Median
$406,354

This home is +9.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,193 across all districts. With a homestead exemption claimed, that drops to $8,423 — saving $1,770 per year. That's $702 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%$5,337
Siena MUD #1MUD0.5250%$2,325
Williamson CountyCounty0.3694%$1,636
Williamson County ESD #3 - HuttoESD0.1000%$443
Williamson County FM/RdCounty0.0443%$196
EWC Higher Ed Centerspecial0.0409%$181
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,193

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $388,612 would pay approximately $2,426 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.

View full property details