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820 EXPEDITION WAY, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,085 sqftBuilt 2017

Property at a Glance

This home is estimated between $556,592 and $810,567, with a best estimate of $665,622. That places the property above the R534516C - CONCORD at BRUSHY CREEK median of $648,366, in a neighborhood that declined 2.4% over the past year.

Estimated Value Range

$556,592 $810,567
Best Estimate
$665,622
WCAD Value
$769,041
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R534516C - CONCORD at BRUSHY CREEK. The estimated range of $556,592 and $810,567 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,998 sqft Built 2012
Raw Value $471,400
Adjusted Value $556,592

Adjusted +$28,369 for 87 sqft more living space and +$56,823 for being newer. Net adjustment: +$85,192.

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 $810,567

Adjusted +$92,607 for 284 sqft more living space and -$22,729 for being older. Net adjustment: +$69,878.

4 bed 3 bath 1,870 sqft Built 2016
Raw Value $486,717
Adjusted Value $568,189

Adjusted +$70,107 for 215 sqft more living space and +$11,365 for being newer. Net adjustment: +$81,472.

809 EXPEDITION WAY, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2,123 sqft Built 2019
Raw Value $700,742
Adjusted Value $665,622

Adjusted -$12,391 for 38 sqft less living space and -$22,729 for being older. Net adjustment: -$35,120.

4 bed 3 bath 1,829 sqft Built 2015
Raw Value $565,668
Adjusted Value $671,874

Adjusted +$83,477 for 256 sqft more living space and +$22,729 for being newer. Net adjustment: +$106,206.

The Neighborhood

This home is valued 18.6% above the R534516C - CONCORD at BRUSHY CREEK median of $648,366. With 203 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.4% over the past year.

R534516C - CONCORD at BRUSHY CREEK

above average
203 Properties
$648,366 Median Value
-2.4% YoY Change
0% Have Pool
100% Have Garage
This Home
$769,041
Median
$648,366

This home is +18.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,837 across all districts. With a homestead exemption claimed, that drops to $12,445 — saving $1,392 per year. That's $1,037 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%$6,868
Round RockCity0.3720%$2,861
Williamson CountyCounty0.3694%$2,841
Austin Community Collegespecial0.1034%$795
Williamson County FM/RdCounty0.0443%$341
Upper Brushy Creek WCIDWater0.0170%$131
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$13,837

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $665,622 would pay approximately $4,155 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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