Beta Williamson County, TX only — data and coverage are limited during early access.

5612 SAMBUCO ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath800 sqftBuilt 2017

Property at a Glance

This home is estimated between $166,226 and $420,564, with a best estimate of $191,912. 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

$166,226 $420,564
Best Estimate
$191,912
WCAD Value
$383,845
High Confidence

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

Based on 5 comparable properties in H121413C - SIENA, this home's estimated market value is between $166,226 and $420,564. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8128 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,034 sqft Built 2015
Raw Value $465,577
Adjusted Value $420,564

Adjusted -$49,470 for 234 sqft less living space and +$4,457 for being newer. Net adjustment: -$45,013.

5637 SACCO ST, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,544 sqft Built 2017
Raw Value $338,329
Adjusted Value $181,040

Adjusted -$157,289 for 744 sqft less living space. Net adjustment: -$157,289.

8009 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 98% similar Same subdivision
3 bed 2 bath 1,519 sqft Built 2016
Raw Value $341,686
Adjusted Value $191,912

Adjusted -$152,003 for 719 sqft less living space and +$2,229 for being newer. Net adjustment: -$149,774.

8050 MOZART ST, ROUND ROCK, TX 78665
0.00 mi 97% similar Same subdivision
3 bed 2 bath 1,610 sqft Built 2016
Raw Value $335,239
Adjusted Value $166,226

Adjusted -$171,242 for 810 sqft less living space and +$2,229 for being newer. Net adjustment: -$169,013.

8104 ROSANO ST, ROUND ROCK, TX 78665
0.00 mi 96% similar Same subdivision
4 bed 2 bath 1,347 sqft Built 2015
Raw Value $423,580
Adjusted Value $312,396

Adjusted -$115,641 for 547 sqft less living space and +$4,457 for being newer. Net adjustment: -$111,184.

The Neighborhood

This home is valued 5.5% 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
$383,845
Median
$406,354

This home is -5.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $8,835 across all districts. With a homestead exemption claimed, that drops to $7,077 — saving $1,758 per year. That's $590 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%$4,626
Siena MUD #1MUD0.5250%$2,015
Williamson CountyCounty0.3694%$1,418
Williamson County ESD #9 - Round RockESD0.0999%$384
Williamson County FM/RdCounty0.0443%$170
EWC Higher Ed Centerspecial0.0409%$157
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$8,835

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $191,912 would pay approximately $1,198 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.

View full property details