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

1000 ZEUS CIR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath1,596 sqftBuilt 2003

Property at a Glance

This home is estimated between $257,551 and $465,415, with a best estimate of $305,078. That places the property below the R401598G - Eagle Ridge - ALL SECTIONS median of $353,883, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$257,551 $465,415
Best Estimate
$305,078
WCAD Value
$383,525
High Confidence

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

Based on 5 comparable properties in R401598G - Eagle Ridge - ALL SECTIONS, this home's estimated market value is between $257,551 and $465,415. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1004 ZEUS CIR, ROUND ROCK, TX 78665
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,680 sqft Built 2003
Raw Value $321,670
Adjusted Value $302,770

Adjusted -$18,900 for 84 sqft less living space. Net adjustment: -$18,900.

1008 ZEUS CIR, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,936 sqft Built 2003
Raw Value $334,050
Adjusted Value $257,551

Adjusted -$76,499 for 340 sqft less living space. Net adjustment: -$76,499.

1005 GULF WAY, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,793 sqft Built 2001
Raw Value $343,022
Adjusted Value $305,078

Adjusted -$44,325 for 197 sqft less living space and +$6,381 for being newer. Net adjustment: -$37,944.

1001 ZEUS CIR, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,280 sqft Built 2003
Raw Value $394,316
Adjusted Value $465,415

Adjusted +$71,099 for 316 sqft more living space. Net adjustment: +$71,099.

904 TERRA ST, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 2001
Raw Value $288,921
Adjusted Value $361,226

Adjusted +$65,924 for 293 sqft more living space and +$6,381 for being newer. Net adjustment: +$72,305.

The Neighborhood

This home is valued 8.4% above the R401598G - Eagle Ridge - ALL SECTIONS median of $353,883. With 749 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.1% over the past year.

R401598G - Eagle Ridge - ALL SECTIONS

typical
749 Properties
$353,883 Median Value
-8.1% YoY Change
0% Have Pool
100% Have Garage
This Home
$383,525
Median
$353,883

This home is +8.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,901 across all districts. With a homestead exemption claimed, that drops to $5,579 — saving $1,322 per year. That's $465 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%$3,425
Round RockCity0.3720%$1,427
Williamson CountyCounty0.3694%$1,417
Austin Community Collegespecial0.1034%$397
Williamson County FM/RdCounty0.0443%$170
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,901

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $305,078 would pay approximately $1,904 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