Beta Williamson County, TX only — data and coverage are limited during early access.

16631 MALAGA HILLS DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath2,512 sqftBuilt 2001

Property at a Glance

This home is estimated between $666,502 and $853,365, with a best estimate of $685,608. 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

$666,502 $853,365
Best Estimate
$685,608
WCAD Value
$690,598
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 $666,502 and $853,365. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

16631 CORDILLERA DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,502 sqft Built 2001
Raw Value $849,728
Adjusted Value $853,365

Adjusted +$3,637 for 10 sqft more living space. Net adjustment: +$3,637.

16633 CORDILLERA DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 3 bath 2,462 sqft Built 2001
Raw Value $667,424
Adjusted Value $685,608

Adjusted +$18,184 for 50 sqft more living space. Net adjustment: +$18,184.

16629 MALAGA HILLS DR, ROUND ROCK, TX 78681
0.02 mi 100% similar Same subdivision
3 bed 3 bath 2,644 sqft Built 2000
Raw Value $742,833
Adjusted Value $694,495

Adjusted -$48,005 for 132 sqft less living space and -$333 for being older. Net adjustment: -$48,338.

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 $666,502

Adjusted -$74,190 for 204 sqft less living space. Net adjustment: -$74,190.

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 $683,431

Adjusted -$67,644 for 186 sqft less living space. Net adjustment: -$67,644.

The Neighborhood

This home is valued 11.3% 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
$690,598
Median
$778,705

This home is -11.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,742 across all districts. With a homestead exemption claimed, that drops to $11,369 — saving $1,373 per year. That's $947 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%$5,945
Brushy Creek MUDMUD0.3868%$2,575
Williamson CountyCounty0.3694%$2,459
Austin Community Collegespecial0.1034%$688
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$666
Williamson County FM/RdCounty0.0443%$295
Upper Brushy Creek WCIDWater0.0170%$113
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$12,742

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $685,608 would pay approximately $4,280 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.

View full property details