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4910 HERCULANEUM LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,040 sqftBuilt 2025

Property at a Glance

This home is estimated between $337,981 and $661,896, with a best estimate of $396,471. 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

$337,981 $661,896
Best Estimate
$396,471
WCAD Value
$371,955
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 $337,981 and $661,896 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,887 sqft Built 2016
Raw Value $380,697
Adjusted Value $396,471

Adjusted +$43,897 for 153 sqft more living space and -$28,123 for being older. Net adjustment: +$15,774.

3 bed 2,039 sqft Built 2011
Raw Value $705,356
Adjusted Value $661,896

Adjusted +$287 for 1 sqft more living space and -$43,747 for being older. Net adjustment: -$43,460.

4918 HERCULANEUM LN, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
5 bed 3 bath 1,642 sqft Built 2025
Raw Value $500,285
Adjusted Value $614,476

Adjusted +$114,191 for 398 sqft more living space. Net adjustment: +$114,191.

3 bed 2 bath 1,960 sqft Built 2007
Raw Value $371,274
Adjusted Value $337,981

Adjusted +$22,953 for 80 sqft more living space and -$56,246 for being older. Net adjustment: -$33,293.

3 bed 2 bath 2,380 sqft Built 2016
Raw Value $496,423
Adjusted Value $370,750

Adjusted -$97,550 for 340 sqft less living space and -$28,123 for being older. Net adjustment: -$125,673.

The Neighborhood

This home is valued 10.8% 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
$371,955
Median
$416,826

This home is -10.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,150 across all districts. With a homestead exemption claimed, that drops to $8,394 — saving $1,756 per year. That's $700 per month a buyer should budget. The assessed value increased +313.3% 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%$4,483
Round Rock MUD #1MUD0.6800%$2,529
Round RockCity0.3720%$1,384
Williamson CountyCounty0.3694%$1,374
Williamson County FM/RdCounty0.0443%$165
EWC Higher Ed Centerspecial0.0409%$152
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$10,150
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 $396,471 would pay approximately $2,475 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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