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2516 PORTICI PASS, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,758 sqftBuilt 2018

Property at a Glance

This home is estimated between $568,047 and $975,351, with a best estimate of $899,941. That places the property above the R440515C - VIZCAYA median of $652,212, in a neighborhood that declined 0.6% over the past year.

Estimated Value Range

$568,047 $975,351
Best Estimate
$899,941
WCAD Value
$749,497
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R440515C - VIZCAYA, this home's estimated market value is between $568,047 and $975,351. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2511 PORTICI PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,830 sqft Built 2018
Raw Value $590,195
Adjusted Value $568,047

Adjusted -$22,148 for 72 sqft less living space. Net adjustment: -$22,148.

2508 PORTICI PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,027 sqft Built 2019
Raw Value $716,406
Adjusted Value $941,275

Adjusted +$224,869 for 731 sqft more living space. Net adjustment: +$224,869.

2515 PORTICI PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,934 sqft Built 2018
Raw Value $721,874
Adjusted Value $975,351

Adjusted +$253,477 for 824 sqft more living space. Net adjustment: +$253,477.

2504 PORTICI PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,392 sqft Built 2019
Raw Value $527,847
Adjusted Value $640,435

Adjusted +$112,588 for 366 sqft more living space. Net adjustment: +$112,588.

2519 PORTICI PASS, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,324 sqft Built 2019
Raw Value $766,435
Adjusted Value $899,941

Adjusted +$133,506 for 434 sqft more living space. Net adjustment: +$133,506.

The Neighborhood

This home is valued 14.9% above the R440515C - VIZCAYA median of $652,212. With 585 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 0.6% over the past year.

R440515C - VIZCAYA

typical
585 Properties
$652,212 Median Value
-0.6% YoY Change
1% Have Pool
100% Have Garage
This Home
$749,497
Median
$652,212

This home is +14.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,486 across all districts. With a homestead exemption claimed, that drops to $12,097 — saving $1,389 per year. That's $1,008 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
Round Rock ISDSchool0.8931%$6,694
Round RockCity0.3720%$2,788
Williamson CountyCounty0.3694%$2,769
Austin Community Collegespecial0.1034%$775
Williamson County FM/RdCounty0.0443%$332
Upper Brushy Creek WCIDWater0.0170%$127
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,486

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $899,941 would pay approximately $5,617 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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