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4504 AVELLINO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,743 sqftBuilt 2022

Property at a Glance

This home is estimated between $370,978 and $557,823, with a best estimate of $551,629. That places the property above the H123421C - SALERNO median of $416,826, in a neighborhood that appreciated 99.5% over the past year.

Estimated Value Range

$370,978 $557,823
Best Estimate
$551,629
WCAD Value
$346,952
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 $370,978 and $557,823. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4520 AVELLINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,351 sqft Built 2021
Raw Value $431,585
Adjusted Value $540,929

Adjusted +$112,469 for 392 sqft more living space and -$3,125 for being older. Net adjustment: +$109,344.

4543 AVELLINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,326 sqft Built 2022
Raw Value $438,181
Adjusted Value $557,823

Adjusted +$119,642 for 417 sqft more living space. Net adjustment: +$119,642.

4512 AVELLINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,618 sqft Built 2022
Raw Value $335,114
Adjusted Value $370,978

Adjusted +$35,864 for 125 sqft more living space. Net adjustment: +$35,864.

4535 AVELLINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,326 sqft Built 2022
Raw Value $433,933
Adjusted Value $553,575

Adjusted +$119,642 for 417 sqft more living space. Net adjustment: +$119,642.

4523 AVELLINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,351 sqft Built 2022
Raw Value $439,160
Adjusted Value $551,629

Adjusted +$112,469 for 392 sqft more living space. Net adjustment: +$112,469.

The Neighborhood

This home is valued 16.8% below the H123421C - SALERNO median of $416,826. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 99.5% over the past year.

H123421C - SALERNO

below average
997 Properties
$416,826 Median Value
+99.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$346,952
Median
$416,826

This home is -16.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,468 across all districts. With a homestead exemption claimed, that drops to $7,716 — saving $1,752 per year. That's $643 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%$4,181
Round Rock MUD #1MUD0.6800%$2,359
Round RockCity0.3720%$1,291
Williamson CountyCounty0.3694%$1,282
Williamson County FM/RdCounty0.0443%$154
EWC Higher Ed Centerspecial0.0409%$142
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$9,468

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $551,629 would pay approximately $3,443 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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