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12920 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath740 sqftBuilt 1991

Property at a Glance

This home is estimated between $364,213 and $455,230, with a best estimate of $408,907. 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

$364,213 $455,230
Best Estimate
$408,907
WCAD Value
$376,692
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 $364,213 and $455,230. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12922 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 516 sqft Built 1991
Raw Value $344,716
Adjusted Value $452,612

Adjusted +$107,896 for 224 sqft more living space. Net adjustment: +$107,896.

12918 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 708 sqft Built 1990
Raw Value $429,871
Adjusted Value $455,230

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

12916 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 810 sqft Built 1991
Raw Value $423,958
Adjusted Value $390,241

Adjusted -$33,717 for 70 sqft less living space. Net adjustment: -$33,717.

12924 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 839 sqft Built 1986
Raw Value $362,176
Adjusted Value $364,213

Adjusted -$47,686 for 99 sqft less living space and +$49,723 for being newer. Net adjustment: +$2,037.

12917 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 $408,907

Adjusted +$40,943 for 85 sqft more living space and +$49,723 for being newer. Net adjustment: +$90,666.

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
$376,692
Median
$335,104

This home is +12.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,569 across all districts. With a homestead exemption claimed, that drops to $5,249 — saving $1,320 per year. That's $437 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%$3,364
Williamson CountyCounty0.3694%$1,392
North Austin MUD #1MUD0.2165%$816
Austin Community Collegespecial0.1034%$389
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%$6,569

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $408,907 would pay approximately $2,552 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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