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12904 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath850 sqftBuilt 1989

Property at a Glance

This home is estimated between $399,515 and $437,151, with a best estimate of $419,839. That places the property above the R390485G - Milwood Sec 28 & 29 median of $335,104, in a neighborhood that declined 8.3% over the past year.

Estimated Value Range

$399,515 $437,151
Best Estimate
$419,839
WCAD Value
$391,139
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R390485G - Milwood Sec 28 & 29, this home's estimated market value is between $399,515 and $437,151. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12906 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 758 sqft Built 1990
Raw Value $388,654
Adjusted Value $423,023

Adjusted +$44,314 for 92 sqft more living space and -$9,945 for being older. Net adjustment: +$34,369.

12902 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 790 sqft Built 1991
Raw Value $390,503
Adjusted Value $399,515

Adjusted +$28,901 for 60 sqft more living space and -$19,889 for being older. Net adjustment: +$9,012.

12900 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 804 sqft Built 1989
Raw Value $414,994
Adjusted Value $437,151

Adjusted +$22,157 for 46 sqft more living space. Net adjustment: +$22,157.

12908 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1990
Raw Value $376,800
Adjusted Value $419,839

Adjusted +$52,984 for 110 sqft more living space and -$9,945 for being older. Net adjustment: +$43,039.

12905 MARGIT DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 738 sqft Built 1991
Raw Value $378,357
Adjusted Value $412,416

Adjusted +$53,948 for 112 sqft more living space and -$19,889 for being older. Net adjustment: +$34,059.

The Neighborhood

This home is valued 16.7% above the R390485G - Milwood Sec 28 & 29 median of $335,104. With 358 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 8.3% over the past year.

R390485G - Milwood Sec 28 & 29

above average
358 Properties
$335,104 Median Value
-8.3% YoY Change
0% Have Pool
97% Have Garage
This Home
$391,139
Median
$335,104

This home is +16.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,821 across all districts. With a homestead exemption claimed, that drops to $5,498 — saving $1,323 per year. That's $458 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%$3,493
Williamson CountyCounty0.3694%$1,445
North Austin MUD #1MUD0.2165%$847
Austin Community Collegespecial0.1034%$404
Williamson County ESD #1 - Jollyville VFDESD0.1000%$391
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,821

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $419,839 would pay approximately $2,621 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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