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5805 SARDINIA DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,957 sqftBuilt 2015

Property at a Glance

This home is estimated between $325,732 and $400,895, with a best estimate of $370,161. 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

$325,732 $400,895
Best Estimate
$370,161
WCAD Value
$345,710
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 $325,732 and $400,895. 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 $400,895

Adjusted +$42,070 for 199 sqft more living space and +$2,229 for being newer. Net adjustment: +$44,299.

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 $369,633

Adjusted +$21,564 for 102 sqft more living space. Net adjustment: +$21,564.

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 $370,161

Adjusted +$23,678 for 112 sqft more living space. Net adjustment: +$23,678.

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 $400,158

Adjusted +$32,980 for 156 sqft more living space. Net adjustment: +$32,980.

7942 AREZZO DR, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 2,087 sqft Built 2017
Raw Value $357,672
Adjusted Value $325,732

Adjusted -$27,483 for 130 sqft less living space and -$4,457 for being older. Net adjustment: -$31,940.

The Neighborhood

This home is valued 14.9% 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
$345,710
Median
$406,354

This home is -14.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,958 across all districts. With a homestead exemption claimed, that drops to $6,207 — saving $1,751 per year. That's $517 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%$4,166
Siena MUD #1MUD0.5250%$1,815
Williamson CountyCounty0.3694%$1,277
Williamson County ESD #3 - HuttoESD0.1000%$346
Williamson County FM/RdCounty0.0443%$153
EWC Higher Ed Centerspecial0.0409%$141
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$7,958

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $370,161 would pay approximately $2,311 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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