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8104 PORTO CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,678 sqftBuilt 2018

Property at a Glance

This home is estimated between $389,272 and $508,199, with a best estimate of $464,708. 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

$389,272 $508,199
Best Estimate
$464,708
WCAD Value
$354,570
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 $389,272 and $508,199. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8100 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,614 sqft Built 2015
Raw Value $446,220
Adjusted Value $466,436

Adjusted +$13,530 for 64 sqft more living space and +$6,686 for being newer. Net adjustment: +$20,216.

8124 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,600 sqft Built 2017
Raw Value $445,913
Adjusted Value $464,632

Adjusted +$16,490 for 78 sqft more living space and +$2,229 for being newer. Net adjustment: +$18,719.

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 $389,272

Adjusted +$57,715 for 273 sqft more living space. Net adjustment: +$57,715.

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 $508,199

Adjusted +$93,020 for 440 sqft more living space and +$4,457 for being newer. Net adjustment: +$97,477.

8112 PORTO CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,600 sqft Built 2017
Raw Value $445,989
Adjusted Value $464,708

Adjusted +$16,490 for 78 sqft more living space and +$2,229 for being newer. Net adjustment: +$18,719.

The Neighborhood

This home is valued 12.7% 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
$354,570
Median
$406,354

This home is -12.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,161 across all districts. With a homestead exemption claimed, that drops to $6,409 — saving $1,752 per year. That's $534 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%$4,273
Siena MUD #1MUD0.5250%$1,861
Williamson CountyCounty0.3694%$1,310
Williamson County ESD #9 - Round RockESD0.0999%$354
Williamson County FM/RdCounty0.0443%$157
EWC Higher Ed Centerspecial0.0409%$145
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,161

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $464,708 would pay approximately $2,901 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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