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4906 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 $252,414 and $500,285, with a best estimate of $412,906. That places the property below the H123421C - SALERNO median of $416,826, in a neighborhood that appreciated 99.5% over the past year.

Estimated Value Range

$252,414 $500,285
Best Estimate
$412,906
WCAD Value
$499,407
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in H123421C - SALERNO. The estimated range of $252,414 and $500,285 should be treated as a rough guide.

Comparable Properties (5)

4918 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 $500,285

This comparable closely matches the subject property's features.

4 bed 3 bath 1,851 sqft Built 2012
Raw Value $547,227
Adjusted Value $446,641

Adjusted -$59,964 for 209 sqft less living space and -$40,622 for being older. Net adjustment: -$100,586.

3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $345,681

Adjusted +$32,708 for 114 sqft more living space and -$21,874 for being older. Net adjustment: +$10,834.

4 bed 3 bath 2,462 sqft Built 2017
Raw Value $512,679
Adjusted Value $252,414

Adjusted -$235,267 for 820 sqft less living space and -$24,998 for being older. Net adjustment: -$260,265.

4 bed 2 bath 1,881 sqft Built 2010
Raw Value $528,350
Adjusted Value $412,906

Adjusted -$68,572 for 239 sqft less living space and -$46,872 for being older. Net adjustment: -$115,444.

The Neighborhood

This home is valued 19.8% 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
$499,407
Median
$416,826

This home is +19.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,628 across all districts. With a homestead exemption claimed, that drops to $11,849 — saving $1,779 per year. That's $987 per month a buyer should budget. The assessed value increased +454.9% 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%$6,019
Round Rock MUD #1MUD0.6800%$3,396
Round RockCity0.3720%$1,858
Williamson CountyCounty0.3694%$1,845
Williamson County FM/RdCounty0.0443%$221
EWC Higher Ed Centerspecial0.0409%$204
Upper Brushy Creek WCIDWater0.0170%$85
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$13,628
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 $412,906 would pay approximately $2,577 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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