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5917 SARDINIA DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,938 sqftBuilt 2014

Property at a Glance

This home is estimated between $319,486 and $394,650, with a best estimate of $363,915. 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

$319,486 $394,650
Best Estimate
$363,915
WCAD Value
$340,578
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 $319,486 and $394,650. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3 bed 2 bath 1,758 sqft Built 2014
Raw Value $356,596
Adjusted Value $394,650

Adjusted +$38,054 for 180 sqft more living space. Net adjustment: +$38,054.

6117 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,855 sqft Built 2015
Raw Value $348,069
Adjusted Value $363,387

Adjusted +$17,547 for 83 sqft more living space and -$2,229 for being older. Net adjustment: +$15,318.

6108 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,845 sqft Built 2015
Raw Value $346,483
Adjusted Value $363,915

Adjusted +$19,661 for 93 sqft more living space and -$2,229 for being older. Net adjustment: +$17,432.

8021 BASSANO DR, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,801 sqft Built 2015
Raw Value $367,178
Adjusted Value $393,912

Adjusted +$28,963 for 137 sqft more living space and -$2,229 for being older. Net adjustment: +$26,734.

7942 AREZZO DR, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
3 bed 2 bath 2,087 sqft Built 2017
Raw Value $357,672
Adjusted Value $319,486

Adjusted -$31,500 for 149 sqft less living space and -$6,686 for being older. Net adjustment: -$38,186.

The Neighborhood

This home is valued 16.2% 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

below average
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$340,578
Median
$406,354

This home is -16.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,840 across all districts. With a homestead exemption claimed, that drops to $6,089 — saving $1,751 per year. That's $507 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%$4,105
Siena MUD #1MUD0.5250%$1,788
Williamson CountyCounty0.3694%$1,258
Williamson County ESD #3 - HuttoESD0.1000%$341
Williamson County FM/RdCounty0.0443%$151
EWC Higher Ed Centerspecial0.0409%$139
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$7,840

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $363,915 would pay approximately $2,272 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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