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12910 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath810 sqftBuilt 1991

Property at a Glance

This home is estimated between $213,450 and $467,946, with a best estimate of $423,646. 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

$213,450 $467,946
Best Estimate
$423,646
WCAD Value
$390,048
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 $213,450 and $467,946. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $467,525

Adjusted +$49,131 for 102 sqft more living space and +$9,945 for being newer. Net adjustment: +$59,076.

12908 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1990
Raw Value $376,800
Adjusted Value $420,462

Adjusted +$33,717 for 70 sqft more living space and +$9,945 for being newer. Net adjustment: +$43,662.

12914 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 547 sqft Built 1991
Raw Value $341,265
Adjusted Value $467,946

Adjusted +$126,681 for 263 sqft more living space. Net adjustment: +$126,681.

12906 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 758 sqft Built 1990
Raw Value $388,654
Adjusted Value $423,646

Adjusted +$25,047 for 52 sqft more living space and +$9,945 for being newer. Net adjustment: +$34,992.

12911 MARGIT DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,104 sqft Built 1986
Raw Value $305,340
Adjusted Value $213,450

Adjusted -$141,613 for 294 sqft less living space and +$49,723 for being newer. Net adjustment: -$91,890.

The Neighborhood

This home is valued 16.4% 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

above average
358 Properties
$335,104 Median Value
-8.3% YoY Change
0% Have Pool
97% Have Garage
This Home
$390,048
Median
$335,104

This home is +16.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,802 across all districts. With a homestead exemption claimed, that drops to $5,479 — saving $1,323 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%$3,484
Williamson CountyCounty0.3694%$1,441
North Austin MUD #1MUD0.2165%$844
Austin Community Collegespecial0.1034%$403
Williamson County ESD #1 - Jollyville VFDESD0.1000%$390
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,802

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $423,646 would pay approximately $2,644 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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