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6616 LEONARDO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed2 bath2,740 sqftBuilt 2018

Property at a Glance

This home is estimated between $452,614 and $893,216, with a best estimate of $559,767. That places the property above the H123414C - SIENA LIMMER LOOP median of $417,399, in a neighborhood that declined 2.7% over the past year.

Estimated Value Range

$452,614 $893,216
Best Estimate
$559,767
WCAD Value
$464,980
Low Confidence

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

There are 5 comparable properties within range, but few are in H123414C - SIENA LIMMER LOOP. The estimated range of $452,614 and $893,216 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 2,685 sqft Built 2018
Raw Value $441,087
Adjusted Value $452,614

Adjusted +$11,527 for 55 sqft more living space. Net adjustment: +$11,527.

5853 CASSTELLO DR, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 3 bath 1,920 sqft Built 2016
Raw Value $384,616
Adjusted Value $559,767

Adjusted +$171,865 for 820 sqft more living space and +$3,286 for being newer. Net adjustment: +$175,151.

5866 CASSTELLO DR, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,791 sqft Built 2015
Raw Value $368,099
Adjusted Value $571,931

Adjusted +$198,902 for 949 sqft more living space and +$4,930 for being newer. Net adjustment: +$203,832.

3 bed 2 bath 2,448 sqft Built 2017
Raw Value $421,647
Adjusted Value $484,491

Adjusted +$61,201 for 292 sqft more living space and +$1,643 for being newer. Net adjustment: +$62,844.

4 bed 3 bath 2,470 sqft Built 2013
Raw Value $828,410
Adjusted Value $893,216

Adjusted +$56,590 for 270 sqft more living space and +$8,216 for being newer. Net adjustment: +$64,806.

The Neighborhood

This home is valued 11.4% above the H123414C - SIENA LIMMER LOOP median of $417,399. With 1,146 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 2.7% over the past year.

H123414C - SIENA LIMMER LOOP

typical
1,146 Properties
$417,399 Median Value
-2.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$464,980
Median
$417,399

This home is +11.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,061 across all districts. With a homestead exemption claimed, that drops to $9,288 — saving $1,773 per year. That's $774 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%$5,604
Siena MUD #2MUD0.6020%$2,799
Williamson CountyCounty0.3694%$1,718
Williamson County ESD #3 - HuttoESD0.1000%$465
Williamson County FM/RdCounty0.0443%$206
EWC Higher Ed Centerspecial0.0409%$190
Upper Brushy Creek WCIDWater0.0170%$79
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3788%$11,061

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $559,767 would pay approximately $3,494 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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