Beta Williamson County, TX only — data and coverage are limited during early access.

508 GREGORY CT, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed2 bath1,025 sqftBuilt 1994

Property at a Glance

This home is estimated between $248,758 and $271,709, with a best estimate of $256,620. That places the property below the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$248,758 $271,709
Best Estimate
$256,620
WCAD Value
$213,088
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 $248,758 and $271,709 should be treated as a rough guide.

Comparable Properties (5)

2 bed 2 bath 951 sqft Built 1985
Raw Value $238,418
Adjusted Value $261,799

Adjusted +$14,379 for 74 sqft more living space and +$9,002 for being newer. Net adjustment: +$23,381.

2 bed 2 bath 890 sqft Built 1985
Raw Value $236,475
Adjusted Value $271,709

Adjusted +$26,232 for 135 sqft more living space and +$9,002 for being newer. Net adjustment: +$35,234.

3 bed 2 bath 1,013 sqft Built 1984
Raw Value $236,424
Adjusted Value $248,758

Adjusted +$2,332 for 12 sqft more living space and +$10,002 for being newer. Net adjustment: +$12,334.

3 bed 2 bath 981 sqft Built 1984
Raw Value $235,630
Adjusted Value $254,182

Adjusted +$8,550 for 44 sqft more living space and +$10,002 for being newer. Net adjustment: +$18,552.

3 bed 2 bath 1,073 sqft Built 1984
Raw Value $255,945
Adjusted Value $256,620

Adjusted -$9,327 for 48 sqft less living space and +$10,002 for being newer. Net adjustment: +$675.

The Neighborhood

This home is valued 40.1% below the R450X - Round Rock East - Duplex median of $355,449. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

below average
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$213,088
Median
$355,449

This home is -40.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $3,834 across all districts. With a homestead exemption claimed, that drops to $2,544 — saving $1,290 per year. That's $212 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%$1,903
Round RockCity0.3720%$793
Williamson CountyCounty0.3694%$787
Austin Community Collegespecial0.1034%$220
Williamson County FM/RdCounty0.0443%$94
Upper Brushy Creek WCIDWater0.0170%$36
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$3,834

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $256,620 would pay approximately $1,602 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.

View full property details