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1611 ONION CREEK VILLAGE DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed4 bath2,533 sqftBuilt 1980

Property at a Glance

This home is estimated between $377,604 and $740,932, with a best estimate of $650,591. That places the property above the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$377,604 $740,932
Best Estimate
$650,591
WCAD Value
$457,160
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R450X - Round Rock East - Duplex. The estimated range of $377,604 and $740,932 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,284 sqft Built 1996
Raw Value $666,603
Adjusted Value $657,197

Adjusted +$48,384 for 249 sqft more living space and -$16,003 for being older and -$41,787 for no garage. Net adjustment: -$9,406.

4 bed 4 bath 1,560 sqft Built 1981
Raw Value $361,705
Adjusted Value $549,771

Adjusted +$189,066 for 973 sqft more living space and -$1,000 for being older. Net adjustment: +$188,066.

4 bed 2 bath 2,654 sqft Built 1995
Raw Value $457,906
Adjusted Value $377,604

Adjusted -$23,512 for 121 sqft less living space and -$15,003 for being older and -$41,787 for no garage. Net adjustment: -$80,302.

4 bed 2 bath 2,356 sqft Built 1995
Raw Value $672,988
Adjusted Value $650,591

Adjusted +$34,393 for 177 sqft more living space and -$15,003 for being older and -$41,787 for no garage. Net adjustment: -$22,397.

4 bed 3 bath 1,955 sqft Built 1996
Raw Value $686,409
Adjusted Value $740,932

Adjusted +$112,313 for 578 sqft more living space and -$16,003 for being older and -$41,787 for no garage. Net adjustment: +$54,523.

The Neighborhood

This home is valued 28.6% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

above average
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$457,160
Median
$355,449

This home is +28.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,226 across all districts. With a homestead exemption claimed, that drops to $6,891 — saving $1,335 per year. That's $574 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$4,083
Round RockCity0.3720%$1,701
Williamson CountyCounty0.3694%$1,689
Austin Community Collegespecial0.1034%$473
Williamson County FM/RdCounty0.0443%$203
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,226

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $650,591 would pay approximately $4,061 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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