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518 OAK PARK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,034 sqftBuilt 1996

Property at a Glance

This home is estimated between $367,331 and $1,063,521, with a best estimate of $454,422. That places the property below the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867, in a neighborhood that declined 8.9% over the past year.

Estimated Value Range

$367,331 $1,063,521
Best Estimate
$454,422
WCAD Value
$450,202
Low Confidence

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

There are 5 comparable properties within range, but none are in R280589F - Oakcreek Sec 1,2, and (AMD's). The estimated range of $367,331 and $1,063,521 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,149 sqft Built 1999
Raw Value $531,605
Adjusted Value $486,932

Adjusted -$38,347 for 115 sqft less living space and -$6,326 for being older. Net adjustment: -$44,673.

4 bed 2 bath 1,134 sqft Built 1979
Raw Value $451,921
Adjusted Value $454,422

Adjusted -$33,345 for 100 sqft less living space and +$35,846 for being newer. Net adjustment: +$2,501.

4 bed 2 bath 921 sqft Built 1978
Raw Value $377,237
Adjusted Value $452,871

Adjusted +$37,680 for 113 sqft more living space and +$37,954 for being newer. Net adjustment: +$75,634.

4 bed 2 bath 1,276 sqft Built 1979
Raw Value $412,181
Adjusted Value $367,331

Adjusted -$80,696 for 242 sqft less living space and +$35,846 for being newer. Net adjustment: -$44,850.

3 bed 2 bath 1,813 sqft Built 1999
Raw Value $1,329,608
Adjusted Value $1,063,521

Adjusted -$259,761 for 779 sqft less living space and -$6,326 for being older. Net adjustment: -$266,087.

The Neighborhood

This home is valued 10.5% below the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.9% over the past year.

R280589F - Oakcreek Sec 1,2, and (AMD's)

typical
787 Properties
$502,867 Median Value
-8.9% YoY Change
2% Have Pool
99% Have Garage
This Home
$450,202
Median
$502,867

This home is -10.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,100 across all districts. With a homestead exemption claimed, that drops to $6,767 — saving $1,333 per year. That's $564 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%$4,021
Round RockCity0.3720%$1,675
Williamson CountyCounty0.3694%$1,663
Austin Community Collegespecial0.1034%$466
Williamson County FM/RdCounty0.0443%$200
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,100

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $454,422 would pay approximately $2,836 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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