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

183 HWY/MCNEIL DR ROUND ROCK, TX 78727

— 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 $8,180,166.

Estimated Value Range

WCAD Appraised Value $8,180,166

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $8,180,166.

The Neighborhood

This home is valued 139.9% above the R45CU - Rr Lakeline Utilities median of $3,409,320. With 6 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 1.9% over the past year.

R45CU - Rr Lakeline Utilities

outlier high
6 Properties
$3,409,320 Median Value
+1.9% YoY Change
0% Have Pool
0% Have Garage
This Home
$8,180,166
Median
$3,409,320

This home is +139.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $159,619 across all districts. With a homestead exemption claimed, that drops to $148,285 — saving $11,334 per year. That's $12,357 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%$73,057
AustinCity0.5240%$42,865
Williamson CountyCounty0.3694%$30,221
Austin Community Collegespecial0.1034%$8,458
Williamson County FM/RdCounty0.0443%$3,626
Upper Brushy Creek WCIDWater0.0170%$1,391
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$159,619

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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