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

815 EXPEDITION WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,265 sqftBuilt 2017

Property at a Glance

This home is estimated between $457,182 and $869,262, with a best estimate of $483,200. That places the property below the R534516C - CONCORD at BRUSHY CREEK median of $648,366, in a neighborhood that declined 2.4% over the past year.

Estimated Value Range

$457,182 $869,262
Best Estimate
$483,200
WCAD Value
$494,679
Low Confidence

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

There are 5 comparable properties within range, but few are in R534516C - CONCORD at BRUSHY CREEK. The estimated range of $457,182 and $869,262 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,011 sqft Built 2016
Raw Value $389,010
Adjusted Value $483,200

Adjusted +$82,825 for 254 sqft more living space and +$11,365 for being newer. Net adjustment: +$94,190.

712 EXPEDITION WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 1,801 sqft Built 2019
Raw Value $740,689
Adjusted Value $869,262

Adjusted +$151,302 for 464 sqft more living space and -$22,729 for being older. Net adjustment: +$128,573.

3 bed 2 bath 2,182 sqft Built 2010
Raw Value $519,881
Adjusted Value $626,498

Adjusted +$27,065 for 83 sqft more living space and +$79,552 for being newer. Net adjustment: +$106,617.

3 bed 2 bath 2,376 sqft Built 2015
Raw Value $483,257
Adjusted Value $469,791

Adjusted -$36,195 for 111 sqft less living space and +$22,729 for being newer. Net adjustment: -$13,466.

3 bed 2 bath 2,174 sqft Built 2015
Raw Value $404,780
Adjusted Value $457,182

Adjusted +$29,673 for 91 sqft more living space and +$22,729 for being newer. Net adjustment: +$52,402.

The Neighborhood

This home is valued 23.7% below the R534516C - CONCORD at BRUSHY CREEK median of $648,366. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 2.4% over the past year.

R534516C - CONCORD at BRUSHY CREEK

below average
203 Properties
$648,366 Median Value
-2.4% YoY Change
0% Have Pool
100% Have Garage
This Home
$494,679
Median
$648,366

This home is -23.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,901 across all districts. With a homestead exemption claimed, that drops to $7,559 — saving $1,342 per year. That's $630 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%$4,418
Round RockCity0.3720%$1,840
Williamson CountyCounty0.3694%$1,828
Austin Community Collegespecial0.1034%$511
Williamson County FM/RdCounty0.0443%$219
Upper Brushy Creek WCIDWater0.0170%$84
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$8,901

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $483,200 would pay approximately $3,016 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