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7720 AREZZO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,371 sqftBuilt 2018

Property at a Glance

This home is estimated between $407,597 and $490,749, with a best estimate of $464,370. 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

$407,597 $490,749
Best Estimate
$464,370
WCAD Value
$409,718
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 $407,597 and $490,749. 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 $464,370

Adjusted +$111,201 for 526 sqft more living space and +$6,686 for being newer. Net adjustment: +$117,887.

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 $474,553

Adjusted +$34,460 for 163 sqft more living space and +$8,914 for being newer. Net adjustment: +$43,374.

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 $407,597

Adjusted -$16,279 for 77 sqft less living space and +$2,229 for being newer. Net adjustment: -$14,050.

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 $490,749

Adjusted +$140,587 for 665 sqft more living space and +$2,229 for being newer. Net adjustment: +$142,816.

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 $463,842

Adjusted +$109,087 for 516 sqft more living space and +$6,686 for being newer. Net adjustment: +$115,773.

The Neighborhood

This home is in line with the H121413C - SIENA median of $406,354. 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
$409,718
Median
$406,354

This home is +0.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,431 across all districts. With a homestead exemption claimed, that drops to $7,668 — saving $1,763 per year. That's $639 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%$4,938
Siena MUD #1MUD0.5250%$2,151
Williamson CountyCounty0.3694%$1,514
Williamson County ESD #3 - HuttoESD0.1000%$410
Williamson County FM/RdCounty0.0443%$182
EWC Higher Ed Centerspecial0.0409%$167
Upper Brushy Creek WCIDWater0.0170%$70
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,431

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $464,370 would pay approximately $2,899 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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