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

16321 GREAT OAKS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

Built 1999

Property at a Glance

There are not enough comparable properties nearby to estimate a price range. The Williamson County Appraisal District values this home at $2,317,254.

Estimated Value Range

WCAD Appraised Value $2,317,254

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $2,317,254.

The Neighborhood

This home is valued 36.3% above the R30QC - Rr West Church median of $1,699,993. With 11 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.3% over the past year.

R30QC - Rr West Church

above average
11 Properties
$1,699,993 Median Value
+0.3% YoY Change
0% Have Pool
9% Have Garage
This Home
$2,317,254
Median
$1,699,993

This home is +36.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $44,355 across all districts. With a homestead exemption claimed, that drops to $42,676 — saving $1,679 per year. That's $3,556 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%$20,695
Brushy Creek MUDMUD0.3868%$8,964
Williamson CountyCounty0.3694%$8,561
Austin Community Collegespecial0.1034%$2,396
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$2,317
Williamson County FM/RdCounty0.0443%$1,027
Upper Brushy Creek WCIDWater0.0170%$394
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$44,355

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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