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5800 SARDINIA DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath1,552 sqftBuilt 2015

Property at a Glance

This home is estimated between $310,919 and $490,073, with a best estimate of $315,275. 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

$310,919 $490,073
Best Estimate
$315,275
WCAD Value
$401,353
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 $310,919 and $490,073. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

7832 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 3 bath 1,575 sqft Built 2017
Raw Value $499,392
Adjusted Value $490,073

Adjusted -$4,862 for 23 sqft less living space and -$4,457 for being older. Net adjustment: -$9,319.

6101 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 93% similar Same subdivision
4 bed 3 bath 1,887 sqft Built 2016
Raw Value $423,749
Adjusted Value $350,698

Adjusted -$70,822 for 335 sqft less living space and -$2,229 for being older. Net adjustment: -$73,051.

3 bed 2 bath 1,758 sqft Built 2014
Raw Value $356,596
Adjusted Value $315,275

Adjusted -$43,550 for 206 sqft less living space and +$2,229 for being newer. Net adjustment: -$41,321.

7945 BASSANO DR, ROUND ROCK, TX 78665
0.00 mi 87% similar Same subdivision
3 bed 2 bath 1,706 sqft Built 2017
Raw Value $347,933
Adjusted Value $310,919

Adjusted -$32,557 for 154 sqft less living space and -$4,457 for being older. Net adjustment: -$37,014.

8021 BASSANO DR, ROUND ROCK, TX 78665
0.00 mi 86% similar Same subdivision
3 bed 2 bath 1,801 sqft Built 2015
Raw Value $367,178
Adjusted Value $314,537

Adjusted -$52,641 for 249 sqft less living space. Net adjustment: -$52,641.

The Neighborhood

This home is valued 1.2% 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
$401,353
Median
$406,354

This home is -1.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,239 across all districts. With a homestead exemption claimed, that drops to $7,477 — saving $1,762 per year. That's $623 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%$4,837
Siena MUD #1MUD0.5250%$2,107
Williamson CountyCounty0.3694%$1,483
Williamson County ESD #3 - HuttoESD0.1000%$401
Williamson County FM/RdCounty0.0443%$178
EWC Higher Ed Centerspecial0.0409%$164
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,239

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $315,275 would pay approximately $1,968 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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