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12911 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath670 sqftBuilt 1989

Property at a Glance

This home is estimated between $336,400 and $464,040, with a best estimate of $363,765. 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

$336,400 $464,040
Best Estimate
$363,765
WCAD Value
$381,108
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 $336,400 and $464,040. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12909 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 516 sqft Built 1991
Raw Value $409,751
Adjusted Value $464,040

Adjusted +$74,178 for 154 sqft more living space and -$19,889 for being older. Net adjustment: +$54,289.

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 $345,166

Adjusted -$33,717 for 70 sqft less living space and -$19,889 for being older. Net adjustment: -$53,606.

12907 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 740 sqft Built 1991
Raw Value $390,006
Adjusted Value $336,400

Adjusted -$33,717 for 70 sqft less living space and -$19,889 for being older. Net adjustment: -$53,606.

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 $363,765

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

12905 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 516 sqft Built 1991
Raw Value $354,679
Adjusted Value $408,968

Adjusted +$74,178 for 154 sqft more living space and -$19,889 for being older. Net adjustment: +$54,289.

The Neighborhood

This home is valued 13.7% 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
$381,108
Median
$335,104

This home is +13.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,646 across all districts. With a homestead exemption claimed, that drops to $5,325 — saving $1,321 per year. That's $444 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%$3,404
Williamson CountyCounty0.3694%$1,408
North Austin MUD #1MUD0.2165%$825
Austin Community Collegespecial0.1034%$394
Williamson County ESD #1 - Jollyville VFDESD0.1000%$381
Williamson County FM/RdCounty0.0443%$169
Upper Brushy Creek WCIDWater0.0170%$65
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,646

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $363,765 would pay approximately $2,271 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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