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12915 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath570 sqftBuilt 1990

Property at a Glance

This home is estimated between $293,052 and $342,885, with a best estimate of $323,622. 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

$293,052 $342,885
Best Estimate
$323,622
WCAD Value
$325,542
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 $293,052 and $342,885. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12913 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1991
Raw Value $398,772
Adjusted Value $306,942

Adjusted -$81,885 for 170 sqft less living space and -$9,945 for being older. Net adjustment: -$91,830.

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 $323,622

Adjusted -$58,765 for 122 sqft less living space and -$9,945 for being older. Net adjustment: -$68,710.

12919 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1990
Raw Value $374,937
Adjusted Value $293,052

Adjusted -$81,885 for 170 sqft less living space. Net adjustment: -$81,885.

12911 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $381,108
Adjusted Value $342,885

Adjusted -$48,168 for 100 sqft less living space and +$9,945 for being newer. Net adjustment: -$38,223.

12921 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 632 sqft Built 1991
Raw Value $377,543
Adjusted Value $337,734

Adjusted -$29,864 for 62 sqft less living space and -$9,945 for being older. Net adjustment: -$39,809.

The Neighborhood

This home is valued 2.9% below the R390485G - Milwood Sec 28 & 29 median of $335,104. That positions it competitively for buyers comparing within the neighborhood. 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
$325,542
Median
$335,104

This home is -2.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,677 across all districts. With a homestead exemption claimed, that drops to $4,366 — saving $1,311 per year. That's $364 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%$2,907
Williamson CountyCounty0.3694%$1,203
North Austin MUD #1MUD0.2165%$705
Austin Community Collegespecial0.1034%$337
Williamson County ESD #1 - Jollyville VFDESD0.1000%$326
Williamson County FM/RdCounty0.0443%$144
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$5,677

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $323,622 would pay approximately $2,020 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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