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121 ALONDRA WAY, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,833 sqftBuilt 2015

Property at a Glance

This home is estimated between $17,853 and $748,689, with a best estimate of $666,129. That places the property below the R100411D - SENDERO SPRINGS SEC. 6 median of $691,941, in a neighborhood that declined 7.4% over the past year.

Estimated Value Range

$17,853 $748,689
Best Estimate
$666,129
WCAD Value
$699,601
Low Confidence

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

There are 5 comparable properties within range, but few are in R100411D - SENDERO SPRINGS SEC. 6. The estimated range of $17,853 and $748,689 should be treated as a rough guide.

Comparable Properties (5)

129 ALONDRA WAY, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,239 sqft Built 2014
Raw Value $821,330
Adjusted Value $681,131

Adjusted -$149,641 for 406 sqft less living space and +$9,442 for being newer. Net adjustment: -$140,199.

4 bed 3 bath 2,122 sqft Built 2025
Raw Value $218,792
Adjusted Value $17,853

Adjusted -$106,518 for 289 sqft less living space and -$94,421 for being older. Net adjustment: -$200,939.

4 bed 3 bath 2,232 sqft Built 2025
Raw Value $706,960
Adjusted Value $465,478

Adjusted -$147,061 for 399 sqft less living space and -$94,421 for being older. Net adjustment: -$241,482.

4 bed 2 bath 1,795 sqft Built 1990
Raw Value $498,629
Adjusted Value $748,689

Adjusted +$14,006 for 38 sqft more living space and +$236,054 for being newer. Net adjustment: +$250,060.

4 bed 2 bath 1,998 sqft Built 1992
Raw Value $509,775
Adjusted Value $666,129

Adjusted -$60,815 for 165 sqft less living space and +$217,169 for being newer. Net adjustment: +$156,354.

The Neighborhood

This home is valued 1.1% above the R100411D - SENDERO SPRINGS SEC. 6 median of $691,941. With 189 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 7.4% over the past year.

R100411D - SENDERO SPRINGS SEC. 6

typical
189 Properties
$691,941 Median Value
-7.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$699,601
Median
$691,941

This home is +1.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,021 across all districts. With a homestead exemption claimed, that drops to $12,641 — saving $1,380 per year. That's $1,053 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
Round Rock ISDSchool0.8931%$6,248
Brushy Creek MUDMUD0.3868%$2,706
Williamson CountyCounty0.3694%$2,585
Austin Community Collegespecial0.1034%$723
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$700
Brushy Creek MUD Defined AreaMUD0.0900%$630
Williamson County FM/RdCounty0.0443%$310
Upper Brushy Creek WCIDWater0.0170%$119
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$14,021

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $666,129 would pay approximately $4,158 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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