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505 OAK PARK DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,466 sqftBuilt 1993

Property at a Glance

This home is estimated between $429,889 and $882,108, with a best estimate of $521,356. That places the property above 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

$429,889 $882,108
Best Estimate
$521,356
WCAD Value
$597,255
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 $429,889 and $882,108 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 2,377 sqft Built 1996
Raw Value $482,899
Adjusted Value $506,250

Adjusted +$29,677 for 89 sqft more living space and -$6,326 for being older. Net adjustment: +$23,351.

4 bed 3 bath 2,953 sqft Built 1983
Raw Value $662,662
Adjusted Value $521,356

Adjusted -$162,392 for 487 sqft less living space and +$21,086 for being newer. Net adjustment: -$141,306.

3 bed 2 bath 2,082 sqft Built 1992
Raw Value $426,113
Adjusted Value $556,268

Adjusted +$128,046 for 384 sqft more living space and +$2,109 for being newer. Net adjustment: +$130,155.

4 bed 2 bath 1,951 sqft Built 1983
Raw Value $689,293
Adjusted Value $882,108

Adjusted +$171,729 for 515 sqft more living space and +$21,086 for being newer. Net adjustment: +$192,815.

4 bed 3 bath 2,916 sqft Built 2021
Raw Value $638,983
Adjusted Value $429,889

Adjusted -$150,054 for 450 sqft less living space and -$59,040 for being older. Net adjustment: -$209,094.

The Neighborhood

This home is valued 18.8% above the R280589F - Oakcreek Sec 1,2, and (AMD's) median of $502,867. With 787 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.9% over the past year.

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

above average
787 Properties
$502,867 Median Value
-8.9% YoY Change
2% Have Pool
99% Have Garage
This Home
$597,255
Median
$502,867

This home is +18.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,746 across all districts. With a homestead exemption claimed, that drops to $9,386 — saving $1,360 per year. That's $782 per month a buyer should budget. The assessed value increased +4.5% vs the subdivision average of -8.9%. This above-average increase gives a protest opportunity score of 60 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,334
Round RockCity0.3720%$2,222
Williamson CountyCounty0.3694%$2,207
Austin Community Collegespecial0.1034%$618
Williamson County FM/RdCounty0.0443%$265
Upper Brushy Creek WCIDWater0.0170%$102
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,746
60 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $521,356 would pay approximately $3,254 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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