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

800 COUNTRY AIRE DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed2 bath1,704 sqftBuilt 1983

Property at a Glance

This home is estimated between $288,976 and $349,489, with a best estimate of $324,287. That places the property below the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$288,976 $349,489
Best Estimate
$324,287
WCAD Value
$392,691
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R450X - Round Rock East - Duplex. The estimated range of $288,976 and $349,489 should be treated as a rough guide.

Comparable Properties (5)

4 bed 2 bath 1,823 sqft Built 1977
Raw Value $408,398
Adjusted Value $349,489

Adjusted -$23,123 for 119 sqft less living space and +$6,001 for being newer and -$41,787 for no garage. Net adjustment: -$58,909.

3 bed 2 bath 1,590 sqft Built 1985
Raw Value $310,611
Adjusted Value $288,976

Adjusted +$22,152 for 114 sqft more living space and -$2,000 for being older and -$41,787 for no garage. Net adjustment: -$21,635.

3 bed 2 bath 1,625 sqft Built 1978
Raw Value $325,741
Adjusted Value $304,306

Adjusted +$15,351 for 79 sqft more living space and +$5,001 for being newer and -$41,787 for no garage. Net adjustment: -$21,435.

3 bed 2 bath 1,594 sqft Built 1977
Raw Value $344,130
Adjusted Value $329,718

Adjusted +$21,374 for 110 sqft more living space and +$6,001 for being newer and -$41,787 for no garage. Net adjustment: -$14,412.

3 bed 2 bath 1,592 sqft Built 1977
Raw Value $338,310
Adjusted Value $324,287

Adjusted +$21,763 for 112 sqft more living space and +$6,001 for being newer and -$41,787 for no garage. Net adjustment: -$14,023.

The Neighborhood

This home is valued 10.5% above the R450X - Round Rock East - Duplex median of $355,449. With 836 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$392,691
Median
$355,449

This home is +10.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,066 across all districts. With a homestead exemption claimed, that drops to $5,743 — saving $1,323 per year. That's $479 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%$3,507
Round RockCity0.3720%$1,461
Williamson CountyCounty0.3694%$1,451
Austin Community Collegespecial0.1034%$406
Williamson County FM/RdCounty0.0443%$174
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,066

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $324,287 would pay approximately $2,024 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