Beta Williamson County, TX only — data and coverage are limited during early access.

4934 HERCULANEUM LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed1,298 sqftBuilt 2025

Property at a Glance

This home is estimated between $246,983 and $444,055, with a best estimate of $392,015. 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

$246,983 $444,055
Best Estimate
$392,015
WCAD Value
$431,190
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 $246,983 and $444,055 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 $401,588

Adjusted -$98,697 for 344 sqft less living space. Net adjustment: -$98,697.

3 bed 2 bath 1,288 sqft Built 2020
Raw Value $456,810
Adjusted Value $444,055

Adjusted +$2,869 for 10 sqft more living space and -$15,624 for being older. Net adjustment: -$12,755.

3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $246,983

Adjusted -$65,990 for 230 sqft less living space and -$21,874 for being older. Net adjustment: -$87,864.

3 bed 2 bath 1,175 sqft Built 2005
Raw Value $419,221
Adjusted Value $392,015

Adjusted +$35,290 for 123 sqft more living space and -$62,496 for being older. Net adjustment: -$27,206.

3 bed 2 bath 910 sqft Built 2022
Raw Value $279,046
Adjusted Value $380,994

Adjusted +$111,322 for 388 sqft more living space and -$9,374 for being older. Net adjustment: +$101,948.

The Neighborhood

This home is valued 3.4% 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
$431,190
Median
$416,826

This home is +3.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,767 across all districts. With a homestead exemption claimed, that drops to $10,000 — saving $1,767 per year. That's $833 per month a buyer should budget. The assessed value increased +379.1% 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%$5,197
Round Rock MUD #1MUD0.6800%$2,932
Round RockCity0.3720%$1,604
Williamson CountyCounty0.3694%$1,593
Williamson County FM/RdCounty0.0443%$191
EWC Higher Ed Centerspecial0.0409%$176
Upper Brushy Creek WCIDWater0.0170%$73
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$11,767
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 $392,015 would pay approximately $2,447 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.

View full property details