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4030 RIARDO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,665 sqftBuilt 2025

Property at a Glance

This home is estimated between $138,994 and $555,025, with a best estimate of $402,774. 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

$138,994 $555,025
Best Estimate
$402,774
WCAD Value
$125,066
High Confidence

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

Based on 5 comparable properties in H123421C - SALERNO, this home's estimated market value is between $138,994 and $555,025. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3834 RIARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,275 sqft Built 2022
Raw Value $581,892
Adjusted Value $397,502

Adjusted -$175,016 for 610 sqft less living space and -$9,374 for being older. Net adjustment: -$184,390.

4132 RIARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,896 sqft Built 2025
Raw Value $510,206
Adjusted Value $443,930

Adjusted -$66,276 for 231 sqft less living space. Net adjustment: -$66,276.

3916 RIARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,722 sqft Built 2022
Raw Value $451,633
Adjusted Value $138,994

Adjusted -$303,265 for 1,057 sqft less living space and -$9,374 for being older. Net adjustment: -$312,639.

3740 RIARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,584 sqft Built 2022
Raw Value $388,908
Adjusted Value $402,774

Adjusted +$23,240 for 81 sqft more living space and -$9,374 for being older. Net adjustment: +$13,866.

3904 RIARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,638 sqft Built 2022
Raw Value $556,652
Adjusted Value $555,025

Adjusted +$7,747 for 27 sqft more living space and -$9,374 for being older. Net adjustment: -$1,627.

The Neighborhood

This home is valued 70.0% 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

outlier low
997 Properties
$416,826 Median Value
+99.5% YoY Change
0% Have Pool
100% Have Garage
This Home
$125,066
Median
$416,826

This home is -70.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $2,608 across all districts. With a homestead exemption claimed, that drops to $1,438 — saving $1,170 per year. That's $120 per month a buyer should budget. The assessed value increased +177.9% vs the subdivision average of +99.5%. This above-average increase gives a protest opportunity score of 95 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Hutto ISDSchool1.2052%$1,152
Round Rock MUD #1MUD0.6800%$650
Round RockCity0.3720%$356
Williamson CountyCounty0.3694%$353
Williamson County FM/RdCounty0.0443%$42
EWC Higher Ed Centerspecial0.0409%$39
Upper Brushy Creek WCIDWater0.0170%$16
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.7288%$2,608
95 / 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 $402,774 would pay approximately $2,514 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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