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4630 ARZANO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,898 sqftBuilt 2024

Property at a Glance

This home is estimated between $472,773 and $769,630, with a best estimate of $543,926. 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

$472,773 $769,630
Best Estimate
$543,926
WCAD Value
$574,630
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $472,773 and $769,630. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

4620 ERCOLANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,701 sqft Built 2022
Raw Value $455,391
Adjusted Value $505,663

Adjusted +$56,522 for 197 sqft more living space and -$6,250 for being older. Net adjustment: +$50,272.

4 bed 3 bath 2,604 sqft Built 2022
Raw Value $491,483
Adjusted Value $569,585

Adjusted +$84,352 for 294 sqft more living space and -$6,250 for being older. Net adjustment: +$78,102.

4 bed 3 bath 2,824 sqft Built 2022
Raw Value $528,945
Adjusted Value $543,926

Adjusted +$21,231 for 74 sqft more living space and -$6,250 for being older. Net adjustment: +$14,981.

4609 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2,227 sqft Built 2024
Raw Value $577,113
Adjusted Value $769,630

Adjusted +$192,517 for 671 sqft more living space. Net adjustment: +$192,517.

4640 ERCOLANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,916 sqft Built 2022
Raw Value $484,187
Adjusted Value $472,773

Adjusted -$5,164 for 18 sqft less living space and -$6,250 for being older. Net adjustment: -$11,414.

The Neighborhood

This home is valued 37.9% 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
$574,630
Median
$416,826

This home is +37.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,681 across all districts. With a homestead exemption claimed, that drops to $13,887 — saving $1,794 per year. That's $1,157 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%$6,925
Round Rock MUD #1MUD0.6800%$3,907
Round RockCity0.3720%$2,138
Williamson CountyCounty0.3694%$2,123
Williamson County FM/RdCounty0.0443%$255
EWC Higher Ed Centerspecial0.0409%$235
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$15,681

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $543,926 would pay approximately $3,395 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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