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1713 ONION CREEK VIL, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed4 bath1,560 sqftBuilt 1981

Property at a Glance

This home is estimated between $196,649 and $367,089, with a best estimate of $319,864. That places the property below the G437X - Williamson Multifamily 3 or More Units median of $571,543, in a neighborhood that declined 9.1% over the past year.

Estimated Value Range

$196,649 $367,089
Best Estimate
$319,864
WCAD Value
$361,705
Low Confidence

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

There are 5 comparable properties within range, but none are in G437X - Williamson Multifamily 3 or More Units. The estimated range of $196,649 and $367,089 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,492 sqft Built 1982
Raw Value $335,905
Adjusted Value $351,164

Adjusted +$18,428 for 68 sqft more living space and -$3,169 for being older. Net adjustment: +$15,259.

3 bed 2 bath 1,508 sqft Built 1983
Raw Value $312,111
Adjusted Value $319,864

Adjusted +$14,092 for 52 sqft more living space and -$6,339 for being older. Net adjustment: +$7,753.

3 bed 2 bath 1,480 sqft Built 1980
Raw Value $342,240
Adjusted Value $367,089

Adjusted +$21,680 for 80 sqft more living space and +$3,169 for being newer. Net adjustment: +$24,849.

4 bed 4 bath 2,533 sqft Built 1980
Raw Value $457,160
Adjusted Value $196,649

Adjusted -$263,680 for 973 sqft less living space and +$3,169 for being newer. Net adjustment: -$260,511.

3 bed 2 bath 1,417 sqft Built 1982
Raw Value $276,171
Adjusted Value $311,755

Adjusted +$38,753 for 143 sqft more living space and -$3,169 for being older. Net adjustment: +$35,584.

The Neighborhood

This home is valued 36.7% below the G437X - Williamson Multifamily 3 or More Units median of $571,543. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.1% over the past year.

G437X - Williamson Multifamily 3 or More Units

below average
231 Properties
$571,543 Median Value
-9.1% YoY Change
0% Have Pool
33% Have Garage
This Home
$361,705
Median
$571,543

This home is -36.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,508 across all districts. With a homestead exemption claimed, that drops to $5,191 — saving $1,317 per year. That's $433 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%$3,230
Round RockCity0.3720%$1,346
Williamson CountyCounty0.3694%$1,336
Austin Community Collegespecial0.1034%$374
Williamson County FM/RdCounty0.0443%$160
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,508

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $319,864 would pay approximately $1,997 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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