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4221 PASADA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,617 sqftBuilt 2007

Property at a Glance

This home is estimated between $474,095 and $682,604, with a best estimate of $643,478. That places the property below the R101506D - Sendero Springs Sec 4,5 East of SS Dr. median of $692,215, in a neighborhood that appreciated 3.8% over the past year.

Estimated Value Range

$474,095 $682,604
Best Estimate
$643,478
WCAD Value
$722,549
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R101506D - Sendero Springs Sec 4,5 East of SS Dr.. The estimated range of $474,095 and $682,604 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $652,828

Adjusted -$71,556 for 194 sqft less living space and +$22,369 for being newer. Net adjustment: -$49,187.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $474,095

Adjusted -$110,285 for 299 sqft less living space and +$22,369 for being newer. Net adjustment: -$87,916.

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $497,262

Adjusted -$110,285 for 299 sqft less living space and +$28,761 for being newer. Net adjustment: -$81,524.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $682,604

Adjusted -$222,045 for 602 sqft less living space. Net adjustment: -$222,045.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $643,478

Adjusted -$198,070 for 537 sqft less living space and -$19,174 for being older. Net adjustment: -$217,244.

The Neighborhood

This home is valued 4.4% above the R101506D - Sendero Springs Sec 4,5 East of SS Dr. median of $692,215. With 299 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 3.8% over the past year.

R101506D - Sendero Springs Sec 4,5 East of SS Dr.

typical
299 Properties
$692,215 Median Value
+3.8% YoY Change
0% Have Pool
97% Have Garage
This Home
$722,549
Median
$692,215

This home is +4.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $13,229 across all districts. With a homestead exemption claimed, that drops to $11,856 — saving $1,373 per year. That's $988 per month a buyer should budget. The assessed value increased +12.6% vs the subdivision average of +3.8%. This above-average increase gives a protest opportunity score of 74 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,895
Brushy Creek MUDMUD0.3868%$2,553
Williamson CountyCounty0.3694%$2,439
Austin Community Collegespecial0.1034%$683
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$660
Brushy Creek MUD Defined AreaMUD0.0900%$594
Williamson County FM/RdCounty0.0443%$293
Upper Brushy Creek WCIDWater0.0170%$112
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$13,229
74 / 100

There may be a strong case to protest this appraisal.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $643,478 would pay approximately $4,017 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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