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500/502 GREGORY CT, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath2,253 sqftBuilt 1994

Property at a Glance

This home is estimated between $397,507 and $742,045, with a best estimate of $428,277. 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

$397,507 $742,045
Best Estimate
$428,277
WCAD Value
$400,887
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 $397,507 and $742,045 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,946 sqft Built 1996
Raw Value $383,800
Adjusted Value $441,454

Adjusted +$59,654 for 307 sqft more living space and -$2,000 for being older. Net adjustment: +$57,654.

4 bed 2 bath 1,860 sqft Built 1995
Raw Value $322,142
Adjusted Value $397,507

Adjusted +$76,365 for 393 sqft more living space and -$1,000 for being older. Net adjustment: +$75,365.

4 bed 2 bath 1,765 sqft Built 1996
Raw Value $316,459
Adjusted Value $409,283

Adjusted +$94,824 for 488 sqft more living space and -$2,000 for being older. Net adjustment: +$92,824.

4 bed 2 bath 1,721 sqft Built 1997
Raw Value $327,904
Adjusted Value $428,277

Adjusted +$103,374 for 532 sqft more living space and -$3,001 for being older. Net adjustment: +$100,373.

4 bed 3 bath 2,110 sqft Built 2006
Raw Value $726,260
Adjusted Value $742,045

Adjusted +$27,787 for 143 sqft more living space and -$12,002 for being older. Net adjustment: +$15,785.

The Neighborhood

This home is valued 12.8% 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

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$400,887
Median
$355,449

This home is +12.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,213 across all districts. With a homestead exemption claimed, that drops to $5,889 — saving $1,324 per year. That's $491 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%$3,580
Round RockCity0.3720%$1,491
Williamson CountyCounty0.3694%$1,481
Austin Community Collegespecial0.1034%$415
Williamson County FM/RdCounty0.0443%$178
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,213

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $428,277 would pay approximately $2,673 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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