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

1008 APOLLO CIR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,776 sqftBuilt 2003

Property at a Glance

This home is estimated between $323,202 and $384,480, with a best estimate of $370,862. 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

$323,202 $384,480
Best Estimate
$370,862
WCAD Value
$311,645
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 $323,202 and $384,480. 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 $381,416

Adjusted +$84,075 for 285 sqft more living space and +$1,803 for being newer. Net adjustment: +$85,878.

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 $384,480

Adjusted +$84,075 for 285 sqft more living space and +$1,803 for being newer. Net adjustment: +$85,878.

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 $370,862

Adjusted +$66,375 for 225 sqft more living space and +$1,803 for being newer. Net adjustment: +$68,178.

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 $369,028

Adjusted +$72,570 for 246 sqft more living space and +$1,803 for being newer. Net adjustment: +$74,373.

1140 APOLLO CIR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,758 sqft Built 2005
Raw Value $314,286
Adjusted Value $323,202

Adjusted +$5,310 for 18 sqft more living space and +$3,606 for being newer. Net adjustment: +$8,916.

The Neighborhood

This home is in line with the R437401G - ChandlerCrSec6C,10,11-K&B reek Sec 6C,10,11: K& B median of $314,414. 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
$311,645
Median
$314,414

This home is -0.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,607 across all districts. With a homestead exemption claimed, that drops to $4,299 — saving $1,308 per year. That's $358 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%$2,783
Round RockCity0.3720%$1,159
Williamson CountyCounty0.3694%$1,151
Austin Community Collegespecial0.1034%$322
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,607

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $370,862 would pay approximately $2,315 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