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904 AUSTIN AVE E, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath1,023 sqftBuilt 1979

Property at a Glance

This home is estimated between $212,295 and $487,317, with a best estimate of $343,191. 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

$212,295 $487,317
Best Estimate
$343,191
WCAD Value
$487,317
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R450X - Round Rock East - Duplex. The estimated range of $212,295 and $487,317 should be treated as a rough guide.

Comparable Properties (5)

906 AUSTIN AVE E, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,023 sqft Built 1979
Raw Value $487,317
Adjusted Value $487,317

This comparable closely matches the subject property's features.

3 bed 2 bath 1,078 sqft Built 1979
Raw Value $312,091
Adjusted Value $343,191

Adjusted -$10,687 for 55 sqft less living space and +$41,787 for having a garage. Net adjustment: +$31,100.

3 bed 2 bath 1,338 sqft Built 1979
Raw Value $361,359
Adjusted Value $341,938

Adjusted -$61,208 for 315 sqft less living space and +$41,787 for having a garage. Net adjustment: -$19,421.

2 bed 1 bath 1,078 sqft Built 1979
Raw Value $324,762
Adjusted Value $355,862

Adjusted -$10,687 for 55 sqft less living space and +$41,787 for having a garage. Net adjustment: +$31,100.

3 bed 2 bath 1,320 sqft Built 1991
Raw Value $282,008
Adjusted Value $212,295

Adjusted -$57,711 for 297 sqft less living space and -$12,002 for being older. Net adjustment: -$69,713.

The Neighborhood

This home is valued 37.1% 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

above average
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$487,317
Median
$355,449

This home is +37.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,768 across all districts. With a homestead exemption claimed, that drops to $7,428 — saving $1,340 per year. That's $619 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%$4,352
Round RockCity0.3720%$1,813
Williamson CountyCounty0.3694%$1,800
Austin Community Collegespecial0.1034%$504
Williamson County FM/RdCounty0.0443%$216
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,768

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $343,191 would pay approximately $2,142 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.

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