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12927 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath516 sqftBuilt 1991

Property at a Glance

This home is estimated between $165,004 and $395,953, with a best estimate of $294,256. That places the property below the R390485G - Milwood Sec 28 & 29 median of $335,104, in a neighborhood that declined 8.3% over the past year.

Estimated Value Range

$165,004 $395,953
Best Estimate
$294,256
WCAD Value
$344,716
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 $165,004 and $395,953. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12925 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 708 sqft Built 1990
Raw Value $377,220
Adjusted Value $294,683

Adjusted -$92,482 for 192 sqft less living space and +$9,945 for being newer. Net adjustment: -$82,537.

12929 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1991
Raw Value $402,152
Adjusted Value $294,256

Adjusted -$107,896 for 224 sqft less living space. Net adjustment: -$107,896.

12931 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 811 sqft Built 1987
Raw Value $267,320
Adjusted Value $165,004

Adjusted -$142,095 for 295 sqft less living space and +$39,779 for being newer. Net adjustment: -$102,316.

12923 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1991
Raw Value $387,627
Adjusted Value $279,731

Adjusted -$107,896 for 224 sqft less living space. Net adjustment: -$107,896.

12933 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 451 sqft Built 1987
Raw Value $324,865
Adjusted Value $395,953

Adjusted +$31,309 for 65 sqft more living space and +$39,779 for being newer. Net adjustment: +$71,088.

The Neighborhood

This home is valued 2.9% 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
$344,716
Median
$335,104

This home is +2.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,011 across all districts. With a homestead exemption claimed, that drops to $4,697 — saving $1,314 per year. That's $391 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%$3,079
Williamson CountyCounty0.3694%$1,274
North Austin MUD #1MUD0.2165%$746
Austin Community Collegespecial0.1034%$356
Williamson County ESD #1 - Jollyville VFDESD0.1000%$345
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,011

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $294,256 would pay approximately $1,837 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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