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6209 MANTALCINO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,826 sqftBuilt 2019

Property at a Glance

This home is estimated between $369,688 and $678,155, with a best estimate of $377,173. That places the property below the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$369,688 $678,155
Best Estimate
$377,173
WCAD Value
$349,496
Low Confidence

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

There are 5 comparable properties within range, but few are in H121413C - SIENA. The estimated range of $369,688 and $678,155 should be treated as a rough guide.

Comparable Properties (5)

5715 ARBIA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 2016
Raw Value $380,697
Adjusted Value $374,487

Adjusted -$12,896 for 61 sqft less living space and +$6,686 for being newer. Net adjustment: -$6,210.

5810 LUCCA LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,528 sqft Built 2018
Raw Value $334,847
Adjusted Value $400,076

Adjusted +$63,000 for 298 sqft more living space and +$2,229 for being newer. Net adjustment: +$65,229.

3 bed 2 bath 1,939 sqft Built 2007
Raw Value $374,319
Adjusted Value $377,173

Adjusted -$23,889 for 113 sqft less living space and +$26,743 for being newer. Net adjustment: +$2,854.

3 bed 2 bath 1,960 sqft Built 2007
Raw Value $371,274
Adjusted Value $369,688

Adjusted -$28,329 for 134 sqft less living space and +$26,743 for being newer. Net adjustment: -$1,586.

3 bed 2,039 sqft Built 2011
Raw Value $705,356
Adjusted Value $678,155

Adjusted -$45,030 for 213 sqft less living space and +$17,829 for being newer. Net adjustment: -$27,201.

The Neighborhood

This home is valued 14.0% below the H121413C - SIENA median of $406,354. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$349,496
Median
$406,354

This home is -14.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,045 across all districts. With a homestead exemption claimed, that drops to $6,293 — saving $1,752 per year. That's $524 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%$4,212
Siena MUD #1MUD0.5250%$1,835
Williamson CountyCounty0.3694%$1,291
Williamson County ESD #3 - HuttoESD0.1000%$349
Williamson County FM/RdCounty0.0443%$155
EWC Higher Ed Centerspecial0.0409%$143
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,045

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $377,173 would pay approximately $2,354 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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