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12808 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath728 sqftBuilt 1991

Property at a Glance

This home is estimated between $360,639 and $445,782, with a best estimate of $398,276. 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

$360,639 $445,782
Best Estimate
$398,276
WCAD Value
$397,190
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 $360,639 and $445,782. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12806 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 525 sqft Built 1991
Raw Value $348,002
Adjusted Value $445,782

Adjusted +$97,780 for 203 sqft more living space. Net adjustment: +$97,780.

12900 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
4 bed 2 bath 804 sqft Built 1989
Raw Value $414,994
Adjusted Value $398,276

Adjusted -$36,607 for 76 sqft less living space and +$19,889 for being newer. Net adjustment: -$16,718.

12804 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $366,808
Adjusted Value $414,634

Adjusted +$27,937 for 58 sqft more living space and +$19,889 for being newer. Net adjustment: +$47,826.

12902 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 790 sqft Built 1991
Raw Value $390,503
Adjusted Value $360,639

Adjusted -$29,864 for 62 sqft less living space. Net adjustment: -$29,864.

12901 MARGIT DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 753 sqft Built 1990
Raw Value $391,343
Adjusted Value $389,246

Adjusted -$12,042 for 25 sqft less living space and +$9,945 for being newer. Net adjustment: -$2,097.

The Neighborhood

This home is valued 18.5% 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
$397,190
Median
$335,104

This home is +18.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,926 across all districts. With a homestead exemption claimed, that drops to $5,602 — saving $1,324 per year. That's $467 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%$3,547
Williamson CountyCounty0.3694%$1,467
North Austin MUD #1MUD0.2165%$860
Austin Community Collegespecial0.1034%$411
Williamson County ESD #1 - Jollyville VFDESD0.1000%$397
Williamson County FM/RdCounty0.0443%$176
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,926

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $398,276 would pay approximately $2,486 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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