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16636 CORDILLERA DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,477 sqftBuilt 2000

Property at a Glance

This home is estimated between $599,510 and $1,099,585, with a best estimate of $696,846. 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

$599,510 $1,099,585
Best Estimate
$696,846
WCAD Value
$667,693
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 $599,510 and $1,099,585. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16634 CORDILLERA DR, ROUND ROCK, TX 78681
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,422 sqft Built 2000
Raw Value $715,908
Adjusted Value $1,099,585

Adjusted +$383,677 for 1,055 sqft more living space. Net adjustment: +$383,677.

16638 CORDILLERA DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,306 sqft Built 2000
Raw Value $634,658
Adjusted Value $696,846

Adjusted +$62,188 for 171 sqft more living space. Net adjustment: +$62,188.

16632 MALAGA HILLS DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,660 sqft Built 2000
Raw Value $692,745
Adjusted Value $626,192

Adjusted -$66,553 for 183 sqft less living space. Net adjustment: -$66,553.

16632 CORDILLERA DR, ROUND ROCK, TX 78681
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,757 sqft Built 2000
Raw Value $701,339
Adjusted Value $599,510

Adjusted -$101,829 for 280 sqft less living space. Net adjustment: -$101,829.

16640 CORDILLERA DR, ROUND ROCK, TX 78681
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,576 sqft Built 2000
Raw Value $697,884
Adjusted Value $1,025,555

Adjusted +$327,671 for 901 sqft more living space. Net adjustment: +$327,671.

The Neighborhood

This home is valued 14.3% 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

typical
143 Properties
$778,705 Median Value
+6.9% YoY Change
4% Have Pool
100% Have Garage
This Home
$667,693
Median
$778,705

This home is -14.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,780 across all districts. With a homestead exemption claimed, that drops to $11,407 — saving $1,373 per year. That's $951 per month a buyer should budget. The assessed value increased +8.9% vs the subdivision average of +6.9%. This increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,963
Brushy Creek MUDMUD0.3868%$2,583
Williamson CountyCounty0.3694%$2,467
Austin Community Collegespecial0.1034%$690
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$668
Williamson County FM/RdCounty0.0443%$296
Upper Brushy Creek WCIDWater0.0170%$114
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$12,780
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $696,846 would pay approximately $4,350 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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