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

1129 APOLLO CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath972 sqftBuilt 2003

Property at a Glance

This home is estimated between $131,847 and $359,333, with a best estimate of $144,235. That places the property below the R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B median of $314,414, in a neighborhood that declined 8.1% over the past year.

Estimated Value Range

$131,847 $359,333
Best Estimate
$144,235
WCAD Value
$322,539
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 $131,847 and $359,333. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 976 sqft Built 2000
Raw Value $365,922
Adjusted Value $359,333

Adjusted -$1,180 for 4 sqft less living space and -$5,409 for being older. Net adjustment: -$6,589.

1405 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,491 sqft Built 2004
Raw Value $295,538
Adjusted Value $144,235

Adjusted -$153,106 for 519 sqft less living space and +$1,803 for being newer. Net adjustment: -$151,303.

1507 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,491 sqft Built 2004
Raw Value $298,602
Adjusted Value $147,299

Adjusted -$153,106 for 519 sqft less living space and +$1,803 for being newer. Net adjustment: -$151,303.

1025 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,551 sqft Built 2004
Raw Value $302,684
Adjusted Value $133,681

Adjusted -$170,806 for 579 sqft less living space and +$1,803 for being newer. Net adjustment: -$169,003.

1113 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,530 sqft Built 2004
Raw Value $294,655
Adjusted Value $131,847

Adjusted -$164,611 for 558 sqft less living space and +$1,803 for being newer. Net adjustment: -$162,808.

The Neighborhood

This home is valued 2.6% above the R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B median of $314,414. With 370 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.1% over the past year.

R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B

typical
370 Properties
$314,414 Median Value
-8.1% YoY Change
1% Have Pool
100% Have Garage
This Home
$322,539
Median
$314,414

This home is +2.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,803 across all districts. With a homestead exemption claimed, that drops to $4,493 — saving $1,310 per year. That's $374 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%$2,881
Round RockCity0.3720%$1,200
Williamson CountyCounty0.3694%$1,192
Austin Community Collegespecial0.1034%$334
Williamson County FM/RdCounty0.0443%$143
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,803

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $144,235 would pay approximately $900 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