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1927 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath2,385 sqftBuilt 2001

Property at a Glance

This home is estimated between $460,496 and $732,441, with a best estimate of $548,823. 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

$460,496 $732,441
Best Estimate
$548,823
WCAD Value
$560,528
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 $460,496 and $732,441. 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 $542,462

Adjusted -$1,836 for 6 sqft less living space and +$1,803 for being newer. Net adjustment: -$33.

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 $460,496

Adjusted -$129,733 for 424 sqft less living space and -$16,223 for being older. Net adjustment: -$145,956.

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 $548,823

Adjusted +$1,530 for 5 sqft more living space and -$19,829 for being older. Net adjustment: -$18,299.

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 $629,894

Adjusted +$70,374 for 230 sqft more living space. Net adjustment: +$70,374.

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 $732,441

Adjusted +$135,546 for 443 sqft more living space. Net adjustment: +$135,546.

The Neighborhood

This home is valued 3.3% below the R545698D - Forest Creek Sec 8 & 9 median of $579,777. That positions it competitively for buyers comparing within the neighborhood. 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
$560,528
Median
$579,777

This home is -3.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,085 across all districts. With a homestead exemption claimed, that drops to $8,732 — saving $1,353 per year. That's $728 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%$5,006
Round RockCity0.3720%$2,085
Williamson CountyCounty0.3694%$2,071
Austin Community Collegespecial0.1034%$580
Williamson County FM/RdCounty0.0443%$248
Upper Brushy Creek WCIDWater0.0170%$95
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,085

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $548,823 would pay approximately $3,426 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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