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12703 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath798 sqftBuilt 1988

Property at a Glance

This home is estimated between $298,927 and $422,282, with a best estimate of $382,916. 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

$298,927 $422,282
Best Estimate
$382,916
WCAD Value
$386,011
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 $298,927 and $422,282. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12705 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 710 sqft Built 1990
Raw Value $334,464
Adjusted Value $356,963

Adjusted +$42,388 for 88 sqft more living space and -$19,889 for being older. Net adjustment: +$22,499.

12701 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 787 sqft Built 1989
Raw Value $387,563
Adjusted Value $382,916

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

12707 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 772 sqft Built 1987
Raw Value $276,458
Adjusted Value $298,927

Adjusted +$12,524 for 26 sqft more living space and +$9,945 for being newer. Net adjustment: +$22,469.

12611 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 668 sqft Built 1989
Raw Value $369,609
Adjusted Value $422,282

Adjusted +$62,618 for 130 sqft more living space and -$9,945 for being older. Net adjustment: +$52,673.

12709 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 787 sqft Built 1989
Raw Value $392,815
Adjusted Value $388,168

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

The Neighborhood

This home is valued 15.2% 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
$386,011
Median
$335,104

This home is +15.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,731 across all districts. With a homestead exemption claimed, that drops to $5,410 — saving $1,321 per year. That's $451 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%$3,447
Williamson CountyCounty0.3694%$1,426
North Austin MUD #1MUD0.2165%$836
Austin Community Collegespecial0.1034%$399
Williamson County ESD #1 - Jollyville VFDESD0.1000%$386
Williamson County FM/RdCounty0.0443%$171
Upper Brushy Creek WCIDWater0.0170%$66
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,731

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $382,916 would pay approximately $2,390 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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