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4922 HERCULANEUM LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,584 sqftBuilt 2025

Property at a Glance

This home is estimated between $235,773 and $483,644, with a best estimate of $329,040. 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

$235,773 $483,644
Best Estimate
$329,040
WCAD Value
$390,558
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 $235,773 and $483,644 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 $483,644

Adjusted -$16,641 for 58 sqft less living space. Net adjustment: -$16,641.

4 bed 3 bath 1,851 sqft Built 2012
Raw Value $547,227
Adjusted Value $430,000

Adjusted -$76,605 for 267 sqft less living space and -$40,622 for being older. Net adjustment: -$117,227.

3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $329,040

Adjusted +$16,067 for 56 sqft more living space and -$21,874 for being older. Net adjustment: -$5,807.

4 bed 3 bath 2,462 sqft Built 2017
Raw Value $512,679
Adjusted Value $235,773

Adjusted -$251,908 for 878 sqft less living space and -$24,998 for being older. Net adjustment: -$276,906.

3 bed 2 bath 1,574 sqft Built 2007
Raw Value $318,980
Adjusted Value $265,603

Adjusted +$2,869 for 10 sqft more living space and -$56,246 for being older. Net adjustment: -$53,377.

The Neighborhood

This home is valued 6.3% below the H123421C - SALERNO median of $416,826. That positions it competitively for buyers comparing within the neighborhood. 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
$390,558
Median
$416,826

This home is -6.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,658 across all districts. With a homestead exemption claimed, that drops to $8,898 — saving $1,760 per year. That's $742 per month a buyer should budget. The assessed value increased +334.0% 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%$4,707
Round Rock MUD #1MUD0.6800%$2,656
Round RockCity0.3720%$1,453
Williamson CountyCounty0.3694%$1,443
Williamson County FM/RdCounty0.0443%$173
EWC Higher Ed Centerspecial0.0409%$160
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$10,658
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 $329,040 would pay approximately $2,054 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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