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1912 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath2,272 sqftBuilt 2001

Property at a Glance

This home is estimated between $425,921 and $697,866, with a best estimate of $514,248. 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

$425,921 $697,866
Best Estimate
$514,248
WCAD Value
$659,587
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 $425,921 and $697,866. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $507,887

Adjusted -$36,411 for 119 sqft less living space and +$1,803 for being newer. Net adjustment: -$34,608.

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 $425,921

Adjusted -$164,308 for 537 sqft less living space and -$16,223 for being older. Net adjustment: -$180,531.

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 $514,248

Adjusted -$33,045 for 108 sqft less living space and -$19,829 for being older. Net adjustment: -$52,874.

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 $595,319

Adjusted +$35,799 for 117 sqft more living space. Net adjustment: +$35,799.

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 $697,866

Adjusted +$100,971 for 330 sqft more living space. Net adjustment: +$100,971.

The Neighborhood

This home is valued 13.8% 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
$659,587
Median
$579,777

This home is +13.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,868 across all districts. With a homestead exemption claimed, that drops to $10,496 — saving $1,372 per year. That's $875 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%$5,891
Round RockCity0.3720%$2,454
Williamson CountyCounty0.3694%$2,437
Austin Community Collegespecial0.1034%$682
Williamson County FM/RdCounty0.0443%$292
Upper Brushy Creek WCIDWater0.0170%$112
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,868

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $514,248 would pay approximately $3,210 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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