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12919 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath740 sqftBuilt 1990

Property at a Glance

This home is estimated between $377,682 and $419,619, with a best estimate of $405,508. 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

$377,682 $419,619
Best Estimate
$405,508
WCAD Value
$374,937
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 $377,682 and $419,619. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12917 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 692 sqft Built 1991
Raw Value $392,332
Adjusted Value $405,508

Adjusted +$23,121 for 48 sqft more living space and -$9,945 for being older. Net adjustment: +$13,176.

12921 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 632 sqft Built 1991
Raw Value $377,543
Adjusted Value $419,619

Adjusted +$52,021 for 108 sqft more living space and -$9,945 for being older. Net adjustment: +$42,076.

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 $377,682

Adjusted -$9,945 for being older. Net adjustment: -$9,945.

12915 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 570 sqft Built 1990
Raw Value $325,542
Adjusted Value $407,427

Adjusted +$81,885 for 170 sqft more living space. Net adjustment: +$81,885.

12913 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1991
Raw Value $398,772
Adjusted Value $388,827

Adjusted -$9,945 for being older. Net adjustment: -$9,945.

The Neighborhood

This home is valued 11.9% 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
$374,937
Median
$335,104

This home is +11.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,538 across all districts. With a homestead exemption claimed, that drops to $5,218 — saving $1,320 per year. That's $435 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%$3,349
Williamson CountyCounty0.3694%$1,385
North Austin MUD #1MUD0.2165%$812
Austin Community Collegespecial0.1034%$388
Williamson County ESD #1 - Jollyville VFDESD0.1000%$375
Williamson County FM/RdCounty0.0443%$166
Upper Brushy Creek WCIDWater0.0170%$64
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,538

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $405,508 would pay approximately $2,531 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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