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1931 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,071 sqftBuilt 2000

Property at a Glance

This home is estimated between $363,591 and $634,563, with a best estimate of $450,945. That places the property below the R545698D - Forest Creek Sec 8 & 9 median of $579,777, in a neighborhood that declined 6.5% over the past year.

Estimated Value Range

$363,591 $634,563
Best Estimate
$450,945
WCAD Value
$599,117
High Confidence

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

Based on 5 comparable properties in R545698D - Forest Creek Sec 8 & 9, this home's estimated market value is between $363,591 and $634,563. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1924 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,725 sqft Built 2014
Raw Value $588,934
Adjusted Value $363,591

Adjusted -$200,107 for 654 sqft less living space and -$25,236 for being older. Net adjustment: -$225,343.

1908 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 2 bath 2,391 sqft Built 2000
Raw Value $542,495
Adjusted Value $444,583

Adjusted -$97,912 for 320 sqft less living space. Net adjustment: -$97,912.

1926 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,380 sqft Built 2012
Raw Value $567,122
Adjusted Value $450,945

Adjusted -$94,546 for 309 sqft less living space and -$21,631 for being older. Net adjustment: -$116,177.

1920 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,155 sqft Built 2001
Raw Value $559,520
Adjusted Value $532,015

Adjusted -$25,702 for 84 sqft less living space and -$1,803 for being older. Net adjustment: -$27,505.

1904 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 1,942 sqft Built 2001
Raw Value $596,895
Adjusted Value $634,563

Adjusted +$39,471 for 129 sqft more living space and -$1,803 for being older. Net adjustment: +$37,668.

The Neighborhood

This home is valued 3.3% above the R545698D - Forest Creek Sec 8 & 9 median of $579,777. With 219 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 6.5% over the past year.

R545698D - Forest Creek Sec 8 & 9

typical
219 Properties
$579,777 Median Value
-6.5% YoY Change
2% Have Pool
97% Have Garage
This Home
$599,117
Median
$579,777

This home is +3.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,780 across all districts. With a homestead exemption claimed, that drops to $9,419 — saving $1,361 per year. That's $785 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%$5,351
Round RockCity0.3720%$2,229
Williamson CountyCounty0.3694%$2,213
Austin Community Collegespecial0.1034%$619
Williamson County FM/RdCounty0.0443%$266
Upper Brushy Creek WCIDWater0.0170%$102
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,780

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $450,945 would pay approximately $2,815 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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