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1923 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

4 bed3 bath2,040 sqftBuilt 2001

Property at a Glance

This home is estimated between $355,908 and $626,880, with a best estimate of $443,262. 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

$355,908 $626,880
Best Estimate
$443,262
WCAD Value
$591,968
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 $355,908 and $626,880. 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 $355,908

Adjusted -$209,592 for 685 sqft less living space and -$23,434 for being older. Net adjustment: -$233,026.

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 $436,901

Adjusted -$107,397 for 351 sqft less living space and +$1,803 for being newer. Net adjustment: -$105,594.

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 $443,262

Adjusted -$104,031 for 340 sqft less living space and -$19,829 for being older. Net adjustment: -$123,860.

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 $524,333

Adjusted -$35,187 for 115 sqft less living space. Net adjustment: -$35,187.

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 $626,880

Adjusted +$29,985 for 98 sqft more living space. Net adjustment: +$29,985.

The Neighborhood

This home is valued 2.1% 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
$591,968
Median
$579,777

This home is +2.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,651 across all districts. With a homestead exemption claimed, that drops to $9,291 — saving $1,360 per year. That's $774 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%$5,287
Round RockCity0.3720%$2,202
Williamson CountyCounty0.3694%$2,187
Austin Community Collegespecial0.1034%$612
Williamson County FM/RdCounty0.0443%$262
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,651

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $443,262 would pay approximately $2,767 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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