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

8214 AREZZO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,803 sqftBuilt 2019

Property at a Glance

This home is estimated between $289,745 and $372,897, with a best estimate of $346,518. 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

$289,745 $372,897
Best Estimate
$346,518
WCAD Value
$457,724
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 $289,745 and $372,897. 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 $346,518

Adjusted -$8,879 for 42 sqft less living space and +$8,914 for being newer. Net adjustment: +$35.

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 $356,701

Adjusted -$85,621 for 405 sqft less living space and +$11,143 for being newer. Net adjustment: -$74,478.

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 $289,745

Adjusted -$136,359 for 645 sqft less living space and +$4,457 for being newer. Net adjustment: -$131,902.

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 $372,897

Adjusted +$20,507 for 97 sqft more living space and +$4,457 for being newer. Net adjustment: +$24,964.

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 $345,990

Adjusted -$10,993 for 52 sqft less living space and +$8,914 for being newer. Net adjustment: -$2,079.

The Neighborhood

This home is valued 12.6% 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
$457,724
Median
$406,354

This home is +12.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,536 across all districts. With a homestead exemption claimed, that drops to $8,764 — saving $1,772 per year. That's $730 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%$5,516
Siena MUD #1MUD0.5250%$2,403
Williamson CountyCounty0.3694%$1,691
Williamson County ESD #3 - HuttoESD0.1000%$458
Williamson County FM/RdCounty0.0443%$203
EWC Higher Ed Centerspecial0.0409%$187
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,536

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $346,518 would pay approximately $2,163 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