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8120 PORTO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath800 sqftBuilt 2017

Property at a Glance

This home is estimated between $142,864 and $404,608, with a best estimate of $201,425. 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

$142,864 $404,608
Best Estimate
$201,425
WCAD Value
$386,358
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 $142,864 and $404,608. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8125 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 940 sqft Built 2017
Raw Value $434,205
Adjusted Value $404,608

Adjusted -$29,597 for 140 sqft less living space. Net adjustment: -$29,597.

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 $320,354

Adjusted -$92,597 for 438 sqft less living space and +$2,229 for being newer. Net adjustment: -$90,368.

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 $201,425

Adjusted -$127,903 for 605 sqft less living space and -$2,229 for being older. Net adjustment: -$130,132.

8104 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
3 bed 2 bath 1,678 sqft Built 2018
Raw Value $354,570
Adjusted Value $166,724

Adjusted -$185,617 for 878 sqft less living space and -$2,229 for being older. Net adjustment: -$187,846.

8113 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 95% similar Same subdivision
3 bed 2 bath 1,856 sqft Built 2018
Raw Value $368,341
Adjusted Value $142,864

Adjusted -$223,248 for 1,056 sqft less living space and -$2,229 for being older. Net adjustment: -$225,477.

The Neighborhood

This home is valued 4.9% 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
$386,358
Median
$406,354

This home is -4.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,893 across all districts. With a homestead exemption claimed, that drops to $7,134 — saving $1,759 per year. That's $595 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%$4,656
Siena MUD #1MUD0.5250%$2,028
Williamson CountyCounty0.3694%$1,427
Williamson County ESD #9 - Round RockESD0.0999%$386
Williamson County FM/RdCounty0.0443%$171
EWC Higher Ed Centerspecial0.0409%$158
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,893

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $201,425 would pay approximately $1,257 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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