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121 W ADELANTA PL, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,863 sqftBuilt 2012

Property at a Glance

This home is estimated between $648,860 and $800,969, with a best estimate of $713,523. That places the property above the R100411D - SENDERO SPRINGS SEC. 6 median of $691,941, in a neighborhood that declined 7.4% over the past year.

Estimated Value Range

$648,860 $800,969
Best Estimate
$713,523
WCAD Value
$721,410
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R100411D - SENDERO SPRINGS SEC. 6. The estimated range of $648,860 and $800,969 should be treated as a rough guide.

Comparable Properties (5)

128 W ADELANTA PL, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,606 sqft Built 2013
Raw Value $628,241
Adjusted Value $713,523

Adjusted +$94,724 for 257 sqft more living space and -$9,442 for being older. Net adjustment: +$85,282.

129 ALONDRA WAY, ROUND ROCK, TX 78681
0.00 mi 88% similar Same subdivision
4 bed 3 bath 2,239 sqft Built 2014
Raw Value $821,330
Adjusted Value $663,862

Adjusted -$138,584 for 376 sqft less living space and -$18,884 for being older. Net adjustment: -$157,468.

4 bed 2 bath 1,795 sqft Built 1990
Raw Value $498,629
Adjusted Value $731,419

Adjusted +$25,063 for 68 sqft more living space and +$207,727 for being newer. Net adjustment: +$232,790.

4 bed 2 bath 1,998 sqft Built 1992
Raw Value $509,775
Adjusted Value $648,860

Adjusted -$49,758 for 135 sqft less living space and +$188,843 for being newer. Net adjustment: +$139,085.

4 bed 2 bath 1,594 sqft Built 1990
Raw Value $494,095
Adjusted Value $800,969

Adjusted +$99,147 for 269 sqft more living space and +$207,727 for being newer. Net adjustment: +$306,874.

The Neighborhood

This home is valued 4.3% 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
$721,410
Median
$691,941

This home is +4.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,458 across all districts. With a homestead exemption claimed, that drops to $13,074 — saving $1,384 per year. That's $1,090 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%$6,443
Brushy Creek MUDMUD0.3868%$2,791
Williamson CountyCounty0.3694%$2,665
Austin Community Collegespecial0.1034%$746
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$721
Brushy Creek MUD Defined AreaMUD0.0900%$649
Williamson County FM/RdCounty0.0443%$320
Upper Brushy Creek WCIDWater0.0170%$123
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$14,458

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $713,523 would pay approximately $4,454 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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