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16638 CORDILLERA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,306 sqftBuilt 2000

Property at a Glance

This home is estimated between $591,918 and $1,037,397, with a best estimate of $608,847. That places the property below the R224599C - Cat Hollow Sec A Ph 3 median of $778,705, in a neighborhood that appreciated 6.9% over the past year.

Estimated Value Range

$591,918 $1,037,397
Best Estimate
$608,847
WCAD Value
$634,658
High Confidence

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

Based on 5 comparable properties in R224599C - Cat Hollow Sec A Ph 3, this home's estimated market value is between $591,918 and $1,037,397. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16636 CORDILLERA DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,477 sqft Built 2000
Raw Value $667,693
Adjusted Value $605,505

Adjusted -$62,188 for 171 sqft less living space. Net adjustment: -$62,188.

16640 CORDILLERA DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,576 sqft Built 2000
Raw Value $697,884
Adjusted Value $963,367

Adjusted +$265,483 for 730 sqft more living space. Net adjustment: +$265,483.

16634 CORDILLERA DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,422 sqft Built 2000
Raw Value $715,908
Adjusted Value $1,037,397

Adjusted +$321,489 for 884 sqft more living space. Net adjustment: +$321,489.

16635 MALAGA HILLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 3 bath 2,716 sqft Built 2001
Raw Value $740,692
Adjusted Value $591,918

Adjusted -$149,107 for 410 sqft less living space and +$333 for being newer. Net adjustment: -$148,774.

16635 CORDILLERA DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 3 bath 2,698 sqft Built 2001
Raw Value $751,075
Adjusted Value $608,847

Adjusted -$142,561 for 392 sqft less living space and +$333 for being newer. Net adjustment: -$142,228.

The Neighborhood

This home is valued 18.5% below the R224599C - Cat Hollow Sec A Ph 3 median of $778,705. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 6.9% over the past year.

R224599C - Cat Hollow Sec A Ph 3

below average
143 Properties
$778,705 Median Value
+6.9% YoY Change
4% Have Pool
100% Have Garage
This Home
$634,658
Median
$778,705

This home is -18.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,148 across all districts. With a homestead exemption claimed, that drops to $10,780 — saving $1,368 per year. That's $898 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%$5,668
Brushy Creek MUDMUD0.3868%$2,455
Williamson CountyCounty0.3694%$2,345
Austin Community Collegespecial0.1034%$656
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$635
Williamson County FM/RdCounty0.0443%$281
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$12,148

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $608,847 would pay approximately $3,800 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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