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12709 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath787 sqftBuilt 1989

Property at a Glance

This home is estimated between $303,572 and $413,795, with a best estimate of $390,658. 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

$303,572 $413,795
Best Estimate
$390,658
WCAD Value
$392,815
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 $303,572 and $413,795. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12707 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 772 sqft Built 1987
Raw Value $276,458
Adjusted Value $303,572

Adjusted +$7,225 for 15 sqft more living space and +$19,889 for being newer. Net adjustment: +$27,114.

12711 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $357,439
Adjusted Value $413,795

Adjusted +$56,356 for 117 sqft more living space. Net adjustment: +$56,356.

12705 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 710 sqft Built 1990
Raw Value $334,464
Adjusted Value $361,608

Adjusted +$37,089 for 77 sqft more living space and -$9,945 for being older. Net adjustment: +$27,144.

12713 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 699 sqft Built 1989
Raw Value $364,628
Adjusted Value $407,016

Adjusted +$42,388 for 88 sqft more living space. Net adjustment: +$42,388.

12703 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 798 sqft Built 1988
Raw Value $386,011
Adjusted Value $390,658

Adjusted -$5,298 for 11 sqft less living space and +$9,945 for being newer. Net adjustment: +$4,647.

The Neighborhood

This home is valued 17.2% 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
$392,815
Median
$335,104

This home is +17.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,850 across all districts. With a homestead exemption claimed, that drops to $5,527 — saving $1,323 per year. That's $461 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%$3,508
Williamson CountyCounty0.3694%$1,451
North Austin MUD #1MUD0.2165%$850
Austin Community Collegespecial0.1034%$406
Williamson County ESD #1 - Jollyville VFDESD0.1000%$393
Williamson County FM/RdCounty0.0443%$174
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,850

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $390,658 would pay approximately $2,438 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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