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1936 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed3 bath1,638 sqftBuilt 2001

Property at a Glance

This home is estimated between $401,332 and $649,097, with a best estimate of $594,449. 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

$401,332 $649,097
Best Estimate
$594,449
WCAD Value
$580,984
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 $401,332 and $649,097. 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 $401,332

Adjusted -$158,188 for 517 sqft less living space. Net adjustment: -$158,188.

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 $503,879

Adjusted -$93,016 for 304 sqft less living space. Net adjustment: -$93,016.

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 $615,459

Adjusted +$12,851 for 42 sqft more living space. Net adjustment: +$12,851.

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 $594,449

Adjusted +$4,284 for 14 sqft more living space and +$5,408 for being newer. Net adjustment: +$9,692.

1901 MULLIGAN DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
5 bed 3 bath 1,352 sqft Built 1999
Raw Value $557,984
Adjusted Value $649,097

Adjusted +$87,508 for 286 sqft more living space and +$3,605 for being newer. Net adjustment: +$91,113.

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
$580,984
Median
$579,777

This home is +0.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,454 across all districts. With a homestead exemption claimed, that drops to $9,096 — saving $1,358 per year. That's $758 per month a buyer should budget. The assessed value increased +2.8% vs the subdivision average of -6.5%. This above-average increase gives a protest opportunity score of 47 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$5,189
Round RockCity0.3720%$2,161
Williamson CountyCounty0.3694%$2,146
Austin Community Collegespecial0.1034%$601
Williamson County FM/RdCounty0.0443%$258
Upper Brushy Creek WCIDWater0.0170%$99
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,454
47 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $594,449 would pay approximately $3,711 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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