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6601 CALABRIA DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed3 bath2,983 sqftBuilt 2019

Property at a Glance

This home is estimated between $505,188 and $945,789, with a best estimate of $612,341. 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

$505,188 $945,789
Best Estimate
$612,341
WCAD Value
$523,264
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 $505,188 and $945,789 should be treated as a rough guide.

Comparable Properties (5)

6616 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,740 sqft Built 2018
Raw Value $464,980
Adjusted Value $517,554

Adjusted +$50,931 for 243 sqft more living space and +$1,643 for being newer. Net adjustment: +$52,574.

5853 CASSTELLO DR, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
4 bed 3 bath 1,920 sqft Built 2016
Raw Value $384,616
Adjusted Value $612,341

Adjusted +$222,795 for 1,063 sqft more living space and +$4,930 for being newer. Net adjustment: +$227,725.

4 bed 3 bath 2,470 sqft Built 2013
Raw Value $828,410
Adjusted Value $945,789

Adjusted +$107,520 for 513 sqft more living space and +$9,859 for being newer. Net adjustment: +$117,379.

3 bed 2 bath 2,685 sqft Built 2018
Raw Value $441,087
Adjusted Value $505,188

Adjusted +$62,458 for 298 sqft more living space and +$1,643 for being newer. Net adjustment: +$64,101.

5 bed 4 bath 2,181 sqft Built 2012
Raw Value $701,622
Adjusted Value $881,216

Adjusted +$168,092 for 802 sqft more living space and +$11,502 for being newer. Net adjustment: +$179,594.

The Neighborhood

This home is valued 25.4% 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

above average
1,146 Properties
$417,399 Median Value
-2.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$523,264
Median
$417,399

This home is +25.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $12,448 across all districts. With a homestead exemption claimed, that drops to $10,664 — saving $1,784 per year. That's $889 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%$6,306
Siena MUD #2MUD0.6020%$3,150
Williamson CountyCounty0.3694%$1,933
Williamson County ESD #3 - HuttoESD0.1000%$523
Williamson County FM/RdCounty0.0443%$232
EWC Higher Ed Centerspecial0.0409%$214
Upper Brushy Creek WCIDWater0.0170%$89
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3788%$12,448

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $612,341 would pay approximately $3,822 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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