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6213 MANTALCINO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,844 sqftBuilt 2019

Property at a Glance

This home is estimated between $373,494 and $681,960, with a best estimate of $380,978. 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

$373,494 $681,960
Best Estimate
$380,978
WCAD Value
$352,649
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 $373,494 and $681,960 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 $378,292

Adjusted -$9,091 for 43 sqft less living space and +$6,686 for being newer. Net adjustment: -$2,405.

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 $403,881

Adjusted +$66,805 for 316 sqft more living space and +$2,229 for being newer. Net adjustment: +$69,034.

3 bed 2 bath 1,939 sqft Built 2007
Raw Value $374,319
Adjusted Value $380,978

Adjusted -$20,084 for 95 sqft less living space and +$26,743 for being newer. Net adjustment: +$6,659.

3 bed 2 bath 1,960 sqft Built 2007
Raw Value $371,274
Adjusted Value $373,494

Adjusted -$24,523 for 116 sqft less living space and +$26,743 for being newer. Net adjustment: +$2,220.

3 bed 2,039 sqft Built 2011
Raw Value $705,356
Adjusted Value $681,960

Adjusted -$41,225 for 195 sqft less living space and +$17,829 for being newer. Net adjustment: -$23,396.

The Neighborhood

This home is valued 13.2% 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
$352,649
Median
$406,354

This home is -13.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,117 across all districts. With a homestead exemption claimed, that drops to $6,365 — saving $1,752 per year. That's $530 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%$4,250
Siena MUD #1MUD0.5250%$1,851
Williamson CountyCounty0.3694%$1,303
Williamson County ESD #3 - HuttoESD0.1000%$353
Williamson County FM/RdCounty0.0443%$156
EWC Higher Ed Centerspecial0.0409%$144
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,117

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $380,978 would pay approximately $2,378 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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