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12908 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath740 sqftBuilt 1990

Property at a Glance

This home is estimated between $346,386 and $423,863, with a best estimate of $379,984. 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

$346,386 $423,863
Best Estimate
$379,984
WCAD Value
$376,800
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 $346,386 and $423,863. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12910 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 810 sqft Built 1991
Raw Value $390,048
Adjusted Value $346,386

Adjusted -$33,717 for 70 sqft less living space and -$9,945 for being older. Net adjustment: -$43,662.

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 $379,984

Adjusted -$8,670 for 18 sqft less living space. Net adjustment: -$8,670.

12912 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 708 sqft Built 1990
Raw Value $408,449
Adjusted Value $423,863

Adjusted +$15,414 for 32 sqft more living space. Net adjustment: +$15,414.

12904 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 850 sqft Built 1989
Raw Value $391,139
Adjusted Value $348,100

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

12909 MARGIT DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 655 sqft Built 1986
Raw Value $318,241
Adjusted Value $398,963

Adjusted +$40,943 for 85 sqft more living space and +$39,779 for being newer. Net adjustment: +$80,722.

The Neighborhood

This home is valued 12.4% 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

typical
358 Properties
$335,104 Median Value
-8.3% YoY Change
0% Have Pool
97% Have Garage
This Home
$376,800
Median
$335,104

This home is +12.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,571 across all districts. With a homestead exemption claimed, that drops to $5,251 — saving $1,320 per year. That's $438 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%$3,365
Williamson CountyCounty0.3694%$1,392
North Austin MUD #1MUD0.2165%$816
Austin Community Collegespecial0.1034%$390
Williamson County ESD #1 - Jollyville VFDESD0.1000%$377
Williamson County FM/RdCounty0.0443%$167
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,571

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $379,984 would pay approximately $2,372 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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