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

4608 ERCOLANO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,391 sqftBuilt 2022

Property at a Glance

This home is estimated between $245,614 and $532,226, with a best estimate of $343,505. That places the property below the H123421C - SALERNO median of $416,826, in a neighborhood that appreciated 99.5% over the past year.

Estimated Value Range

$245,614 $532,226
Best Estimate
$343,505
WCAD Value
$523,619
High Confidence

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

Based on 5 comparable properties in H123421C - SALERNO, this home's estimated market value is between $245,614 and $532,226. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4609 TEVEROLA DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 1,808 sqft Built 2023
Raw Value $362,131
Adjusted Value $245,614

Adjusted -$119,642 for 417 sqft less living space and +$3,125 for being newer. Net adjustment: -$116,517.

4605 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,901 sqft Built 2023
Raw Value $516,704
Adjusted Value $373,504

Adjusted -$146,325 for 510 sqft less living space and +$3,125 for being newer. Net adjustment: -$143,200.

4601 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,227 sqft Built 2022
Raw Value $555,525
Adjusted Value $315,667

Adjusted -$239,858 for 836 sqft less living space. Net adjustment: -$239,858.

4604 ERCOLANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,616 sqft Built 2022
Raw Value $596,781
Adjusted Value $532,226

Adjusted -$64,555 for 225 sqft less living space. Net adjustment: -$64,555.

4609 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 2,227 sqft Built 2024
Raw Value $577,113
Adjusted Value $343,505

Adjusted -$239,858 for 836 sqft less living space and +$6,250 for being newer. Net adjustment: -$233,608.

The Neighborhood

This home is valued 25.6% above the H123421C - SALERNO median of $416,826. With 997 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 99.5% over the past year.

H123421C - SALERNO

above average
997 Properties
$416,826 Median Value
+99.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$523,619
Median
$416,826

This home is +25.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,289 across all districts. With a homestead exemption claimed, that drops to $12,505 — saving $1,784 per year. That's $1,042 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%$6,311
Round Rock MUD #1MUD0.6800%$3,561
Round RockCity0.3720%$1,948
Williamson CountyCounty0.3694%$1,934
Williamson County FM/RdCounty0.0443%$232
EWC Higher Ed Centerspecial0.0409%$214
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$14,289

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $343,505 would pay approximately $2,144 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