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6273 MANTALCINO LN, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath942 sqftBuilt 2018

Property at a Glance

This home is estimated between $185,372 and $379,205, with a best estimate of $276,897. 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

$185,372 $379,205
Best Estimate
$276,897
WCAD Value
$369,815
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $185,372 and $379,205. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 910 sqft Built 2022
Raw Value $279,046
Adjusted Value $276,897

Adjusted +$6,765 for 32 sqft more living space and -$8,914 for being older. Net adjustment: -$2,149.

6293 MANTALCINO LN, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 897 sqft Built 2018
Raw Value $367,277
Adjusted Value $376,790

Adjusted +$9,513 for 45 sqft more living space. Net adjustment: +$9,513.

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 $210,961

Adjusted -$123,886 for 586 sqft less living space. Net adjustment: -$123,886.

5715 ARBIA LN, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 2016
Raw Value $380,697
Adjusted Value $185,372

Adjusted -$199,782 for 945 sqft less living space and +$4,457 for being newer. Net adjustment: -$195,325.

3 bed 2 bath 1,288 sqft Built 2020
Raw Value $456,810
Adjusted Value $379,205

Adjusted -$73,148 for 346 sqft less living space and -$4,457 for being older. Net adjustment: -$77,605.

The Neighborhood

This home is valued 9.0% 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
$369,815
Median
$406,354

This home is -9.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,513 across all districts. With a homestead exemption claimed, that drops to $6,757 — saving $1,756 per year. That's $563 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%$4,457
Siena MUD #1MUD0.5250%$1,942
Williamson CountyCounty0.3694%$1,366
Williamson County ESD #3 - HuttoESD0.1000%$370
Williamson County FM/RdCounty0.0443%$164
EWC Higher Ed Centerspecial0.0409%$151
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,513

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $276,897 would pay approximately $1,728 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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