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6248 MANTALCINO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,853 sqftBuilt 2018

Property at a Glance

This home is estimated between $298,087 and $433,356, with a best estimate of $365,043. 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

$298,087 $433,356
Best Estimate
$365,043
WCAD Value
$353,895
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $298,087 and $433,356. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,840 sqft Built 2007
Raw Value $406,093
Adjusted Value $433,356

Adjusted +$2,748 for 13 sqft more living space and +$24,515 for being newer. Net adjustment: +$27,263.

6108 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,845 sqft Built 2015
Raw Value $346,483
Adjusted Value $354,860

Adjusted +$1,691 for 8 sqft more living space and +$6,686 for being newer. Net adjustment: +$8,377.

8206 AREZZO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,208 sqft Built 2014
Raw Value $431,179
Adjusted Value $365,043

Adjusted -$75,050 for 355 sqft less living space and +$8,914 for being newer. Net adjustment: -$66,136.

5857 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,448 sqft Built 2017
Raw Value $421,647
Adjusted Value $298,087

Adjusted -$125,789 for 595 sqft less living space and +$2,229 for being newer. Net adjustment: -$123,560.

7945 BASSANO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,706 sqft Built 2017
Raw Value $347,933
Adjusted Value $381,239

Adjusted +$31,077 for 147 sqft more living space and +$2,229 for being newer. Net adjustment: +$33,306.

The Neighborhood

This home is valued 12.9% 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
$353,895
Median
$406,354

This home is -12.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,146 across all districts. With a homestead exemption claimed, that drops to $6,393 — saving $1,753 per year. That's $533 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%$4,265
Siena MUD #1MUD0.5250%$1,858
Williamson CountyCounty0.3694%$1,307
Williamson County ESD #3 - HuttoESD0.1000%$354
Williamson County FM/RdCounty0.0443%$157
EWC Higher Ed Centerspecial0.0409%$145
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,146

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $365,043 would pay approximately $2,279 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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