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

1005 APOLLO CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath2,174 sqftBuilt 2003

Property at a Glance

This home is estimated between $429,056 and $501,891, with a best estimate of $488,273. That places the property above 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

$429,056 $501,891
Best Estimate
$488,273
WCAD Value
$307,182
High Confidence

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

Based on 5 comparable properties in R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B, this home's estimated market value is between $429,056 and $501,891. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $498,827

Adjusted +$201,486 for 683 sqft more living space and +$1,803 for being newer. Net adjustment: +$203,289.

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 $501,891

Adjusted +$201,486 for 683 sqft more living space and +$1,803 for being newer. Net adjustment: +$203,289.

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 $488,273

Adjusted +$183,786 for 623 sqft more living space and +$1,803 for being newer. Net adjustment: +$185,589.

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 $486,439

Adjusted +$189,981 for 644 sqft more living space and +$1,803 for being newer. Net adjustment: +$191,784.

1008 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,776 sqft Built 2003
Raw Value $311,645
Adjusted Value $429,056

Adjusted +$117,411 for 398 sqft more living space. Net adjustment: +$117,411.

The Neighborhood

This home is valued 2.3% below the R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B median of $314,414. That positions it competitively for buyers comparing within the neighborhood. 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
$307,182
Median
$314,414

This home is -2.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,527 across all districts. With a homestead exemption claimed, that drops to $4,220 — saving $1,307 per year. That's $352 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%$2,743
Round RockCity0.3720%$1,143
Williamson CountyCounty0.3694%$1,135
Austin Community Collegespecial0.1034%$318
Williamson County FM/RdCounty0.0443%$136
Upper Brushy Creek WCIDWater0.0170%$52
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,527

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $488,273 would pay approximately $3,048 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