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405 SHEPPARD ST, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,112 sqftBuilt 1955

Property at a Glance

This home is estimated between $220,147 and $431,493, with a best estimate of $295,537. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$220,147 $431,493
Best Estimate
$295,537
WCAD Value
$311,355
High Confidence

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

Based on 5 comparable properties in R701575F - OLD TOWN ROUND ROCK, this home's estimated market value is between $220,147 and $431,493. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

307 MILAM AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 816 sqft Built 1955
Raw Value $200,679
Adjusted Value $276,680

Adjusted +$76,001 for 296 sqft more living space. Net adjustment: +$76,001.

107 ANDERSON AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
2 bed 1 bath 999 sqft Built 1960
Raw Value $417,941
Adjusted Value $431,493

Adjusted +$29,014 for 113 sqft more living space and -$15,462 for being older. Net adjustment: +$13,552.

511 PECAN AVE, ROUND ROCK, TX 78664
0.00 mi 97% similar Same subdivision
2 bed 1 bath 890 sqft Built 1960
Raw Value $253,998
Adjusted Value $295,537

Adjusted +$57,001 for 222 sqft more living space and -$15,462 for being older. Net adjustment: +$41,539.

409 MILAM AVE, ROUND ROCK, TX 78664
0.00 mi 95% similar Same subdivision
2 bed 1 bath 576 sqft Built 1955
Raw Value $180,169
Adjusted Value $317,793

Adjusted +$137,624 for 536 sqft more living space. Net adjustment: +$137,624.

411 BELLVIEW AVE, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
2 bed 1 bath 818 sqft Built 1975
Raw Value $206,506
Adjusted Value $220,147

Adjusted +$75,488 for 294 sqft more living space and -$61,847 for being older. Net adjustment: +$13,641.

The Neighborhood

This home is valued 2.5% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

typical
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$311,355
Median
$319,256

This home is -2.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $4,717 across all districts. With a homestead exemption claimed, that drops to $3,418 — saving $1,299 per year. That's $285 per month a buyer should budget. The assessed value increased +42.5% vs the subdivision average of +4.3%. 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
Round Rock ISDSchool0.8931%$2,341
Round RockCity0.3720%$975
Williamson CountyCounty0.3694%$968
Austin Community Collegespecial0.1034%$271
Williamson County FM/RdCounty0.0443%$116
Upper Brushy Creek WCIDWater0.0170%$45
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,717
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 $295,537 would pay approximately $1,845 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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