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1911 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,493 sqftBuilt 2011

Property at a Glance

This home is estimated between $511,567 and $703,199, with a best estimate of $593,533. That places the property above 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

$511,567 $703,199
Best Estimate
$593,533
WCAD Value
$583,609
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 $511,567 and $703,199. 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 $512,540

Adjusted -$70,986 for 232 sqft less living space and -$5,408 for being older. Net adjustment: -$76,394.

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 $593,533

Adjusted +$31,209 for 102 sqft more living space and +$19,829 for being newer. Net adjustment: +$51,038.

1905 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,809 sqft Built 2010
Raw Value $606,452
Adjusted Value $511,567

Adjusted -$96,688 for 316 sqft less living space and +$1,803 for being newer. Net adjustment: -$94,885.

1909 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,287 sqft Built 2009
Raw Value $636,563
Adjusted Value $703,199

Adjusted +$63,031 for 206 sqft more living space and +$3,605 for being newer. Net adjustment: +$66,636.

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 $599,894

Adjusted +$34,575 for 113 sqft more living space and -$1,803 for being older. Net adjustment: +$32,772.

The Neighborhood

This home is in line with the R545698D - Forest Creek Sec 8 & 9 median of $579,777. 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
$583,609
Median
$579,777

This home is +0.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,501 across all districts. With a homestead exemption claimed, that drops to $9,143 — saving $1,358 per year. That's $762 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%$5,212
Round RockCity0.3720%$2,171
Williamson CountyCounty0.3694%$2,156
Austin Community Collegespecial0.1034%$603
Williamson County FM/RdCounty0.0443%$259
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,501

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $593,533 would pay approximately $3,705 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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