Beta Williamson County, TX only — data and coverage are limited during early access.

5101 ORSINI CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,248 sqftBuilt 2018

Property at a Glance

This home is estimated between $346,250 and $592,193, with a best estimate of $445,127. That places the property below the R440515C - VIZCAYA median of $652,212, in a neighborhood that declined 0.6% over the past year.

Estimated Value Range

$346,250 $592,193
Best Estimate
$445,127
WCAD Value
$796,969
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R440515C - VIZCAYA. The estimated range of $346,250 and $592,193 should be treated as a rough guide.

Comparable Properties (5)

2620 CATALANI CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,835 sqft Built 2017
Raw Value $761,615
Adjusted Value $581,043

Adjusted -$180,572 for 587 sqft less living space. Net adjustment: -$180,572.

2601 CATALANI CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,779 sqft Built 2017
Raw Value $755,538
Adjusted Value $592,193

Adjusted -$163,345 for 531 sqft less living space. Net adjustment: -$163,345.

4 bed 3 bath 2,422 sqft Built 2016
Raw Value $399,775
Adjusted Value $346,250

Adjusted -$53,525 for 174 sqft less living space. Net adjustment: -$53,525.

4 bed 3 bath 2,256 sqft Built 2017
Raw Value $415,041
Adjusted Value $412,580

Adjusted -$2,461 for 8 sqft less living space. Net adjustment: -$2,461.

4 bed 3 bath 2,197 sqft Built 2018
Raw Value $429,438
Adjusted Value $445,127

Adjusted +$15,689 for 51 sqft more living space. Net adjustment: +$15,689.

The Neighborhood

This home is valued 22.2% 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

above average
585 Properties
$652,212 Median Value
-0.6% YoY Change
1% Have Pool
100% Have Garage
This Home
$796,969
Median
$652,212

This home is +22.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,771 across all districts. With a homestead exemption claimed, that drops to $13,153 — saving $1,618 per year. That's $1,096 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
Georgetown ISDSchool1.0506%$8,373
Round RockCity0.3720%$2,965
Williamson CountyCounty0.3694%$2,944
Williamson County FM/RdCounty0.0443%$353
Upper Brushy Creek WCIDWater0.0170%$135
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.8534%$14,771

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $445,127 would pay approximately $2,778 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.

View full property details