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513/515 GREGORY CT, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,121 sqftBuilt 1995

Property at a Glance

This home is estimated between $376,238 and $949,078, with a best estimate of $392,108. 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

$376,238 $949,078
Best Estimate
$392,108
WCAD Value
$392,108
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $376,238 and $949,078. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

512/514 GREGORY CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,253 sqft Built 1994
Raw Value $404,415
Adjusted Value $379,766

Adjusted -$25,649 for 132 sqft less living space and +$1,000 for being newer. Net adjustment: -$24,649.

509/511 GREGORY CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,121 sqft Built 1995
Raw Value $392,108
Adjusted Value $392,108

This comparable closely matches the subject property's features.

513/515 TEXAS AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,102 sqft Built 1985
Raw Value $417,617
Adjusted Value $431,311

Adjusted +$3,692 for 19 sqft more living space and +$10,002 for being newer. Net adjustment: +$13,694.

517/519 GREGORY CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,253 sqft Built 1994
Raw Value $400,887
Adjusted Value $376,238

Adjusted -$25,649 for 132 sqft less living space and +$1,000 for being newer. Net adjustment: -$24,649.

3 bed 3 bath 2,227 sqft Built 1994
Raw Value $968,675
Adjusted Value $949,078

Adjusted -$20,597 for 106 sqft less living space and +$1,000 for being newer. Net adjustment: -$19,597.

The Neighborhood

This home is valued 10.3% 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
$392,108
Median
$355,449

This home is +10.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,055 across all districts. With a homestead exemption claimed, that drops to $5,732 — saving $1,323 per year. That's $478 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%$3,502
Round RockCity0.3720%$1,459
Williamson CountyCounty0.3694%$1,449
Austin Community Collegespecial0.1034%$405
Williamson County FM/RdCounty0.0443%$174
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,055

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $392,108 would pay approximately $2,448 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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