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1910 MULLIGAN DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath1,884 sqftBuilt 2001

Property at a Glance

This home is estimated between $476,601 and $724,367, with a best estimate of $669,718. 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

$476,601 $724,367
Best Estimate
$669,718
WCAD Value
$632,574
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 $476,601 and $724,367. 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 $476,601

Adjusted -$82,919 for 271 sqft less living space. Net adjustment: -$82,919.

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 $579,149

Adjusted -$17,746 for 58 sqft less living space. Net adjustment: -$17,746.

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 $690,728

Adjusted +$88,120 for 288 sqft more living space. Net adjustment: +$88,120.

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 $669,718

Adjusted +$79,553 for 260 sqft more living space and +$5,408 for being newer. Net adjustment: +$84,961.

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 $724,367

Adjusted +$162,778 for 532 sqft more living space and +$3,605 for being newer. Net adjustment: +$166,383.

The Neighborhood

This home is valued 9.1% 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
$632,574
Median
$579,777

This home is +9.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $11,382 across all districts. With a homestead exemption claimed, that drops to $10,015 — saving $1,367 per year. That's $835 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%$5,650
Round RockCity0.3720%$2,353
Williamson CountyCounty0.3694%$2,337
Austin Community Collegespecial0.1034%$654
Williamson County FM/RdCounty0.0443%$280
Upper Brushy Creek WCIDWater0.0170%$108
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$11,382

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $669,718 would pay approximately $4,180 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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