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5010 HERCULANEUM LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed3 bath1,642 sqftBuilt 2025

Property at a Glance

This home is estimated between $330,998 and $532,008, with a best estimate of $479,852. 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

$330,998 $532,008
Best Estimate
$479,852
WCAD Value
$500,285
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $330,998 and $532,008. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

5009 MOZZAFIATO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,306 sqft Built 2025
Raw Value $435,606
Adjusted Value $532,008

Adjusted +$96,402 for 336 sqft more living space. Net adjustment: +$96,402.

5006 HERCULANEUM LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,762 sqft Built 2025
Raw Value $440,594
Adjusted Value $406,165

Adjusted -$34,429 for 120 sqft less living space. Net adjustment: -$34,429.

5002 HERCULANEUM LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,742 sqft Built 2025
Raw Value $359,689
Adjusted Value $330,998

Adjusted -$28,691 for 100 sqft less living space. Net adjustment: -$28,691.

5001 MOZZAFIATO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,298 sqft Built 2025
Raw Value $381,155
Adjusted Value $479,852

Adjusted +$98,697 for 344 sqft more living space. Net adjustment: +$98,697.

4 bed 2 bath 1,639 sqft Built 2008
Raw Value $560,734
Adjusted Value $508,473

Adjusted +$861 for 3 sqft more living space and -$53,122 for being older. Net adjustment: -$52,261.

The Neighborhood

This home is valued 20.0% 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
$500,285
Median
$416,826

This home is +20.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,652 across all districts. With a homestead exemption claimed, that drops to $11,872 — saving $1,780 per year. That's $989 per month a buyer should budget. The assessed value increased +455.9% vs the subdivision average of +99.5%. This above-average increase gives a protest opportunity score of 100 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Hutto ISDSchool1.2052%$6,029
Round Rock MUD #1MUD0.6800%$3,402
Round RockCity0.3720%$1,861
Williamson CountyCounty0.3694%$1,848
Williamson County FM/RdCounty0.0443%$222
EWC Higher Ed Centerspecial0.0409%$204
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$13,652
100 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $479,852 would pay approximately $2,995 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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