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1904 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath1,942 sqftBuilt 2001

Property at a Glance

This home is estimated between $494,348 and $708,475, with a best estimate of $637,970. 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

$494,348 $708,475
Best Estimate
$637,970
WCAD Value
$596,895
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 $494,348 and $708,475. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $494,348

Adjusted -$65,172 for 213 sqft less living space. Net adjustment: -$65,172.

1934 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,596 sqft Built 2001
Raw Value $602,608
Adjusted Value $708,475

Adjusted +$105,867 for 346 sqft more living space. Net adjustment: +$105,867.

1900 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,624 sqft Built 1998
Raw Value $584,757
Adjusted Value $687,465

Adjusted +$97,300 for 318 sqft more living space and +$5,408 for being newer. Net adjustment: +$102,708.

1912 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 4 bath 2,272 sqft Built 2001
Raw Value $659,587
Adjusted Value $558,616

Adjusted -$100,971 for 330 sqft less living space. Net adjustment: -$100,971.

1914 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,674 sqft Built 2001
Raw Value $555,969
Adjusted Value $637,970

Adjusted +$82,001 for 268 sqft more living space. Net adjustment: +$82,001.

The Neighborhood

This home is valued 3.0% 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
$596,895
Median
$579,777

This home is +3.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,740 across all districts. With a homestead exemption claimed, that drops to $9,379 — saving $1,361 per year. That's $782 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%$5,331
Round RockCity0.3720%$2,220
Williamson CountyCounty0.3694%$2,205
Austin Community Collegespecial0.1034%$617
Williamson County FM/RdCounty0.0443%$265
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,740

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $637,970 would pay approximately $3,982 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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