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12902 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath790 sqftBuilt 1991

Property at a Glance

This home is estimated between $380,414 and $428,140, with a best estimate of $414,013. 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

$380,414 $428,140
Best Estimate
$414,013
WCAD Value
$390,503
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 $380,414 and $428,140. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12900 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
4 bed 2 bath 804 sqft Built 1989
Raw Value $414,994
Adjusted Value $428,140

Adjusted -$6,743 for 14 sqft less living space and +$19,889 for being newer. Net adjustment: +$13,146.

12904 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 850 sqft Built 1989
Raw Value $391,139
Adjusted Value $382,127

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

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 $414,013

Adjusted +$15,414 for 32 sqft more living space and +$9,945 for being newer. Net adjustment: +$25,359.

12808 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 728 sqft Built 1991
Raw Value $397,190
Adjusted Value $427,054

Adjusted +$29,864 for 62 sqft more living space. Net adjustment: +$29,864.

12903 MARGIT DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 810 sqft Built 1991
Raw Value $390,048
Adjusted Value $380,414

Adjusted -$9,634 for 20 sqft less living space. Net adjustment: -$9,634.

The Neighborhood

This home is valued 16.5% 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
$390,503
Median
$335,104

This home is +16.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,809 across all districts. With a homestead exemption claimed, that drops to $5,487 — saving $1,322 per year. That's $457 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%$3,488
Williamson CountyCounty0.3694%$1,443
North Austin MUD #1MUD0.2165%$845
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%$6,809

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $414,013 would pay approximately $2,584 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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