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12805 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath620 sqftBuilt 1987

Property at a Glance

This home is estimated between $206,998 and $336,390, with a best estimate of $322,526. 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

$206,998 $336,390
Best Estimate
$322,526
WCAD Value
$320,365
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 $206,998 and $336,390. 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 $322,526

Adjusted -$24,084 for 50 sqft less living space and -$19,889 for being older. Net adjustment: -$43,973.

12807 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 670 sqft Built 1989
Raw Value $380,363
Adjusted Value $336,390

Adjusted -$24,084 for 50 sqft less living space and -$19,889 for being older. Net adjustment: -$43,973.

12901 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 814 sqft Built 1987
Raw Value $313,888
Adjusted Value $220,443

Adjusted -$93,445 for 194 sqft less living space. Net adjustment: -$93,445.

12801 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 837 sqft Built 1987
Raw Value $311,522
Adjusted Value $206,998

Adjusted -$104,524 for 217 sqft less living space. Net adjustment: -$104,524.

12903 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 668 sqft Built 1989
Raw Value $367,297
Adjusted Value $324,287

Adjusted -$23,121 for 48 sqft less living space and -$19,889 for being older. Net adjustment: -$43,010.

The Neighborhood

This home is valued 4.4% 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
$320,365
Median
$335,104

This home is -4.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,586 across all districts. With a homestead exemption claimed, that drops to $4,277 — saving $1,309 per year. That's $356 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%$2,861
Williamson CountyCounty0.3694%$1,184
North Austin MUD #1MUD0.2165%$694
Austin Community Collegespecial0.1034%$331
Williamson County ESD #1 - Jollyville VFDESD0.1000%$320
Williamson County FM/RdCounty0.0443%$142
Upper Brushy Creek WCIDWater0.0170%$54
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$5,586

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $322,526 would pay approximately $2,013 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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