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8405 REGGIO ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,923 sqftBuilt 2014

Property at a Glance

This home is estimated between $364,611 and $543,123, with a best estimate of $411,767. 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

$364,611 $543,123
Best Estimate
$411,767
WCAD Value
$372,170
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 $364,611 and $543,123. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

6041 ROMA ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,748 sqft Built 2014
Raw Value $456,427
Adjusted Value $493,424

Adjusted +$36,997 for 175 sqft more living space. Net adjustment: +$36,997.

8104 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2015
Raw Value $423,580
Adjusted Value $543,123

Adjusted +$121,772 for 576 sqft more living space and -$2,229 for being older. Net adjustment: +$119,543.

7836 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,961 sqft Built 2017
Raw Value $379,331
Adjusted Value $364,611

Adjusted -$8,034 for 38 sqft less living space and -$6,686 for being older. Net adjustment: -$14,720.

5608 SAMBUCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,173 sqft Built 2017
Raw Value $429,647
Adjusted Value $370,109

Adjusted -$52,852 for 250 sqft less living space and -$6,686 for being older. Net adjustment: -$59,538.

5637 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,544 sqft Built 2017
Raw Value $338,329
Adjusted Value $411,767

Adjusted +$80,124 for 379 sqft more living space and -$6,686 for being older. Net adjustment: +$73,438.

The Neighborhood

This home is valued 8.4% 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
$372,170
Median
$406,354

This home is -8.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,566 across all districts. With a homestead exemption claimed, that drops to $6,810 — saving $1,756 per year. That's $568 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%$4,485
Siena MUD #1MUD0.5250%$1,954
Williamson CountyCounty0.3694%$1,375
Williamson County ESD #9 - Round RockESD0.0999%$372
Williamson County FM/RdCounty0.0443%$165
EWC Higher Ed Centerspecial0.0409%$152
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,566

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $411,767 would pay approximately $2,570 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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