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

RR 620, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

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 $4,124,982.

Estimated Value Range

WCAD Appraised Value $4,124,982

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $4,124,982.

The Neighborhood

This home is valued 3851.8% above the R30 - West Round Rock Vacant median of $104,382. With 74 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 1.2% over the past year.

R30 - West Round Rock Vacant

outlier high
74 Properties
$104,382 Median Value
-1.2% YoY Change
0% Have Pool
3% Have Garage
This Home
$4,124,982
Median
$104,382

This home is +3851.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $63,000 across all districts. With a homestead exemption claimed, that drops to $60,988 — saving $2,012 per year. That's $5,082 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%$36,840
Williamson CountyCounty0.3694%$15,240
Austin Community Collegespecial0.1034%$4,265
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$4,125
Williamson County FM/RdCounty0.0443%$1,829
Upper Brushy Creek WCIDWater0.0170%$701
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$63,000

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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