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8125 PORTO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath940 sqftBuilt 2017

Property at a Glance

This home is estimated between $172,461 and $415,955, with a best estimate of $231,023. 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

$172,461 $415,955
Best Estimate
$231,023
WCAD Value
$434,205
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 $172,461 and $415,955. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8120 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 800 sqft Built 2017
Raw Value $386,358
Adjusted Value $415,955

Adjusted +$29,597 for 140 sqft more living space. Net adjustment: +$29,597.

8117 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,405 sqft Built 2018
Raw Value $331,557
Adjusted Value $231,023

Adjusted -$98,305 for 465 sqft less living space and -$2,229 for being older. Net adjustment: -$100,534.

8116 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,238 sqft Built 2016
Raw Value $410,722
Adjusted Value $349,951

Adjusted -$63,000 for 298 sqft less living space and +$2,229 for being newer. Net adjustment: -$60,771.

8104 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
3 bed 2 bath 1,678 sqft Built 2018
Raw Value $354,570
Adjusted Value $196,321

Adjusted -$156,020 for 738 sqft less living space and -$2,229 for being older. Net adjustment: -$158,249.

8113 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,856 sqft Built 2018
Raw Value $368,341
Adjusted Value $172,461

Adjusted -$193,651 for 916 sqft less living space and -$2,229 for being older. Net adjustment: -$195,880.

The Neighborhood

This home is valued 6.9% 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
$434,205
Median
$406,354

This home is +6.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,994 across all districts. With a homestead exemption claimed, that drops to $8,227 — saving $1,767 per year. That's $686 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%$5,233
Siena MUD #1MUD0.5250%$2,280
Williamson CountyCounty0.3694%$1,604
Williamson County ESD #9 - Round RockESD0.0999%$434
Williamson County FM/RdCounty0.0443%$192
EWC Higher Ed Centerspecial0.0409%$177
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,994

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $231,023 would pay approximately $1,442 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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