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12801 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath837 sqftBuilt 1987

Property at a Glance

This home is estimated between $304,171 and $427,050, with a best estimate of $424,889. 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

$304,171 $427,050
Best Estimate
$424,889
WCAD Value
$311,522
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 $304,171 and $427,050. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12803 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $366,499
Adjusted Value $427,050

Adjusted +$80,440 for 167 sqft more living space and -$19,889 for being older. Net adjustment: +$60,551.

12721 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $365,347
Adjusted Value $425,898

Adjusted +$80,440 for 167 sqft more living space and -$19,889 for being older. Net adjustment: +$60,551.

12719 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 772 sqft Built 1987
Raw Value $272,862
Adjusted Value $304,171

Adjusted +$31,309 for 65 sqft more living space. Net adjustment: +$31,309.

12805 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 620 sqft Built 1987
Raw Value $320,365
Adjusted Value $424,889

Adjusted +$104,524 for 217 sqft more living space. Net adjustment: +$104,524.

12717 MARIMBA TRL, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 837 sqft Built 1987
Raw Value $349,886
Adjusted Value $349,886

This comparable closely matches the subject property's features.

The Neighborhood

This home is valued 7.0% 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
$311,522
Median
$335,104

This home is -7.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,432 across all districts. With a homestead exemption claimed, that drops to $4,124 — saving $1,308 per year. That's $344 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%$2,782
Williamson CountyCounty0.3694%$1,151
North Austin MUD #1MUD0.2165%$674
Austin Community Collegespecial0.1034%$322
Williamson County ESD #1 - Jollyville VFDESD0.1000%$312
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$5,432

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $424,889 would pay approximately $2,652 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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