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

509 EGGER CT, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,306 sqftBuilt 1984

Property at a Glance

This home is estimated between $242,085 and $385,107, with a best estimate of $261,958. That places the property above the R460483I - Chapel Hill North Sec 1 & 2 median of $260,016, in a neighborhood that declined 16.9% over the past year.

Estimated Value Range

$242,085 $385,107
Best Estimate
$261,958
WCAD Value
$269,526
High Confidence

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

Based on 5 comparable properties in R460483I - Chapel Hill North Sec 1 & 2, this home's estimated market value is between $242,085 and $385,107. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

507 EGGER CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,372 sqft Built 1984
Raw Value $276,427
Adjusted Value $261,958

Adjusted -$14,469 for 66 sqft less living space. Net adjustment: -$14,469.

503 EGGER CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 888 sqft Built 1984
Raw Value $293,469
Adjusted Value $385,107

Adjusted +$91,638 for 418 sqft more living space. Net adjustment: +$91,638.

501 EGGER CT, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,073 sqft Built 1984
Raw Value $255,945
Adjusted Value $307,025

Adjusted +$51,080 for 233 sqft more living space. Net adjustment: +$51,080.

508 EGGER CT, ROUND ROCK, TX 78664
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,377 sqft Built 1984
Raw Value $257,650
Adjusted Value $242,085

Adjusted -$15,565 for 71 sqft less living space. Net adjustment: -$15,565.

506 EGGER CT, ROUND ROCK, TX 78664
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,482 sqft Built 1984
Raw Value $285,127
Adjusted Value $246,543

Adjusted -$38,584 for 176 sqft less living space. Net adjustment: -$38,584.

The Neighborhood

This home is valued 3.7% above the R460483I - Chapel Hill North Sec 1 & 2 median of $260,016. With 157 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 16.9% over the past year.

R460483I - Chapel Hill North Sec 1 & 2

typical
157 Properties
$260,016 Median Value
-16.9% YoY Change
2% Have Pool
90% Have Garage
This Home
$269,526
Median
$260,016

This home is +3.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $4,850 across all districts. With a homestead exemption claimed, that drops to $3,549 — saving $1,301 per year. That's $296 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%$2,407
Round RockCity0.3720%$1,003
Williamson CountyCounty0.3694%$996
Austin Community Collegespecial0.1034%$279
Williamson County FM/RdCounty0.0443%$119
Upper Brushy Creek WCIDWater0.0170%$46
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$4,850

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $261,958 would pay approximately $1,635 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