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4645 ARZANO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed3 bath2,227 sqftBuilt 2023

Property at a Glance

This home is estimated between $550,235 and $786,094, with a best estimate of $575,147. 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

$550,235 $786,094
Best Estimate
$575,147
WCAD Value
$576,586
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 $550,235 and $786,094. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4625 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2,227 sqft Built 2024
Raw Value $547,110
Adjusted Value $550,235

Adjusted +$3,125 for being newer. Net adjustment: +$3,125.

4629 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2,275 sqft Built 2024
Raw Value $585,794
Adjusted Value $575,147

Adjusted -$13,772 for 48 sqft less living space and +$3,125 for being newer. Net adjustment: -$10,647.

4637 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 1,901 sqft Built 2023
Raw Value $562,787
Adjusted Value $656,320

Adjusted +$93,533 for 326 sqft more living space. Net adjustment: +$93,533.

4626 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,883 sqft Built 2024
Raw Value $684,272
Adjusted Value $786,094

Adjusted +$98,697 for 344 sqft more living space and +$3,125 for being newer. Net adjustment: +$101,822.

4649 ARZANO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 2,275 sqft Built 2023
Raw Value $579,582
Adjusted Value $565,810

Adjusted -$13,772 for 48 sqft less living space. Net adjustment: -$13,772.

The Neighborhood

This home is valued 38.3% 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
$576,586
Median
$416,826

This home is +38.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,734 across all districts. With a homestead exemption claimed, that drops to $13,940 — saving $1,794 per year. That's $1,162 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%$6,949
Round Rock MUD #1MUD0.6800%$3,921
Round RockCity0.3720%$2,145
Williamson CountyCounty0.3694%$2,130
Williamson County FM/RdCounty0.0443%$256
EWC Higher Ed Centerspecial0.0409%$236
Upper Brushy Creek WCIDWater0.0170%$98
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$15,734

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $575,147 would pay approximately $3,590 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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