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

904 POWDERHORN DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed984 sqftBuilt 1980

Property at a Glance

This home is estimated between $203,441 and $269,997, with a best estimate of $223,763. That places the property below the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$203,441 $269,997
Best Estimate
$223,763
WCAD Value
$298,949
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 $203,441 and $269,997. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $223,763

Adjusted -$63,561 for 285 sqft less living space and -$3,213 for being older. Net adjustment: -$66,774.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $269,997

Adjusted -$71,143 for 319 sqft less living space and -$6,427 for being older. Net adjustment: -$77,570.

4001 HILLSIDE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,133 sqft Built 1979
Raw Value $293,501
Adjusted Value $261,878

Adjusted -$33,230 for 149 sqft less living space and +$1,607 for being newer. Net adjustment: -$31,623.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $214,342

Adjusted -$50,848 for 228 sqft less living space and -$3,213 for being older. Net adjustment: -$54,061.

3 bed 2 bath 1,254 sqft Built 1984
Raw Value $270,083
Adjusted Value $203,441

Adjusted -$60,215 for 270 sqft less living space and -$6,427 for being older. Net adjustment: -$66,642.

The Neighborhood

This home is in line with the R210480H - Brushy Creek median of $296,542. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

typical
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$298,949
Median
$296,542

This home is +0.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,722 across all districts. With a homestead exemption claimed, that drops to $4,417 — saving $1,305 per year. That's $368 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%$2,670
Brushy Creek MUDMUD0.3868%$1,156
Williamson CountyCounty0.3694%$1,104
Austin Community Collegespecial0.1034%$309
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$299
Williamson County FM/RdCounty0.0443%$133
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,722

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $223,763 would pay approximately $1,397 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