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5811 SABBIA CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,307 sqftBuilt 2017

Property at a Glance

This home is estimated between $462,583 and $686,903, with a best estimate of $492,572. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$462,583 $686,903
Best Estimate
$492,572
WCAD Value
$410,229
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in H121413C - SIENA. The estimated range of $462,583 and $686,903 should be treated as a rough guide.

Comparable Properties (5)

5808 SABBIA CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,019 sqft Built 2017
Raw Value $409,295
Adjusted Value $470,181

Adjusted +$60,886 for 288 sqft more living space. Net adjustment: +$60,886.

3 bed 2 bath 2,270 sqft Built 2016
Raw Value $482,521
Adjusted Value $492,572

Adjusted +$7,822 for 37 sqft more living space and +$2,229 for being newer. Net adjustment: +$10,051.

3 bed 2 bath 1,883 sqft Built 2015
Raw Value $368,488
Adjusted Value $462,583

Adjusted +$89,638 for 424 sqft more living space and +$4,457 for being newer. Net adjustment: +$94,095.

4 bed 2 bath 2,222 sqft Built 2011
Raw Value $655,561
Adjusted Value $686,903

Adjusted +$17,970 for 85 sqft more living space and +$13,372 for being newer. Net adjustment: +$31,342.

3 bed 2 bath 2,804 sqft Built 2008
Raw Value $612,415
Adjusted Value $527,403

Adjusted -$105,070 for 497 sqft less living space and +$20,058 for being newer. Net adjustment: -$85,012.

The Neighborhood

This home is in line with the H121413C - SIENA median of $406,354. 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
$410,229
Median
$406,354

This home is +1.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,442 across all districts. With a homestead exemption claimed, that drops to $7,679 — saving $1,763 per year. That's $640 per month a buyer should budget. The assessed value increased +3.1% vs the subdivision average of -5.4%. This above-average increase gives a protest opportunity score of 43 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Hutto ISDSchool1.2052%$4,944
Siena MUD #1MUD0.5250%$2,154
Williamson CountyCounty0.3694%$1,516
Williamson County ESD #9 - Round RockESD0.0999%$410
Williamson County FM/RdCounty0.0443%$182
EWC Higher Ed Centerspecial0.0409%$168
Upper Brushy Creek WCIDWater0.0170%$70
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$9,442
43 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $492,572 would pay approximately $3,075 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 4/19/2026.

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