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

555 LIMMER LOOP, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

Built 2007

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 $10,007,459.

Estimated Value Range

WCAD Appraised Value $10,007,459

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $10,007,459.

The Neighborhood

This home is valued 17.4% above the T14CS - Hutto School median of $8,523,068. With 13 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 0.0% over the past year.

T14CS - Hutto School

above average
13 Properties
$8,523,068 Median Value
+0.0% YoY Change
0% Have Pool
0% Have Garage
This Home
$10,007,459
Median
$8,523,068

This home is +17.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $177,817 across all districts. With a homestead exemption claimed, that drops to $174,281 — saving $3,536 per year. That's $14,523 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
Hutto ISDSchool1.2052%$120,610
Williamson CountyCounty0.3694%$36,972
Williamson County ESD #3 - HuttoESD0.1000%$10,007
Williamson County FM/RdCounty0.0443%$4,436
EWC Higher Ed Centerspecial0.0409%$4,090
Upper Brushy Creek WCIDWater0.0170%$1,701
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7768%$177,817

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