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

8038 AREZZO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,750 sqftBuilt 2017

Property at a Glance

This home is estimated between $274,083 and $357,235, with a best estimate of $330,856. 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

$274,083 $357,235
Best Estimate
$330,856
WCAD Value
$365,665
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 $274,083 and $357,235. 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 $330,856

Adjusted -$20,084 for 95 sqft less living space and +$4,457 for being newer. Net adjustment: -$15,627.

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 $341,040

Adjusted -$96,825 for 458 sqft less living space and +$6,686 for being newer. Net adjustment: -$90,139.

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 $274,083

Adjusted -$147,564 for 698 sqft less living space. Net adjustment: -$147,564.

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 $357,235

Adjusted +$9,302 for 44 sqft more living space. Net adjustment: +$9,302.

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 $330,328

Adjusted -$22,198 for 105 sqft less living space and +$4,457 for being newer. Net adjustment: -$17,741.

The Neighborhood

This home is valued 10.0% 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
$365,665
Median
$406,354

This home is -10.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,417 across all districts. With a homestead exemption claimed, that drops to $6,662 — saving $1,755 per year. That's $555 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%$4,407
Siena MUD #1MUD0.5250%$1,920
Williamson CountyCounty0.3694%$1,351
Williamson County ESD #3 - HuttoESD0.1000%$366
Williamson County FM/RdCounty0.0443%$162
EWC Higher Ed Centerspecial0.0409%$149
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,417

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $330,856 would pay approximately $2,065 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