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5006 HERCULANEUM LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,762 sqftBuilt 2025

Property at a Glance

This home is estimated between $365,427 and $668,456, with a best estimate of $534,714. 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

$365,427 $668,456
Best Estimate
$534,714
WCAD Value
$440,594
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 $365,427 and $668,456. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

5010 HERCULANEUM LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,642 sqft Built 2025
Raw Value $500,285
Adjusted Value $534,714

Adjusted +$34,429 for 120 sqft more living space. Net adjustment: +$34,429.

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 $566,438

Adjusted +$130,832 for 456 sqft more living space. Net adjustment: +$130,832.

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 $365,427

Adjusted +$5,738 for 20 sqft more living space. Net adjustment: +$5,738.

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 $514,282

Adjusted +$133,127 for 464 sqft more living space. Net adjustment: +$133,127.

4 bed 2 bath 1,916 sqft Built 2015
Raw Value $743,888
Adjusted Value $668,456

Adjusted -$44,184 for 154 sqft less living space and -$31,248 for being older. Net adjustment: -$75,432.

The Neighborhood

This home is valued 5.7% 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

typical
997 Properties
$416,826 Median Value
+99.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$440,594
Median
$416,826

This home is +5.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,023 across all districts. With a homestead exemption claimed, that drops to $10,254 — saving $1,769 per year. That's $855 per month a buyer should budget. The assessed value increased +389.5% 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%$5,310
Round Rock MUD #1MUD0.6800%$2,996
Round RockCity0.3720%$1,639
Williamson CountyCounty0.3694%$1,628
Williamson County FM/RdCounty0.0443%$195
EWC Higher Ed Centerspecial0.0409%$180
Upper Brushy Creek WCIDWater0.0170%$75
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$12,023
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 $534,714 would pay approximately $3,338 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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