Beta Williamson County, TX only — data and coverage are limited during early access.

12721 MARIMBA TRL, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath670 sqftBuilt 1989

Property at a Glance

This home is estimated between $243,620 and $366,499, with a best estimate of $289,335. 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

$243,620 $366,499
Best Estimate
$289,335
WCAD Value
$365,347
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 $243,620 and $366,499. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

12719 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 772 sqft Built 1987
Raw Value $272,862
Adjusted Value $243,620

Adjusted -$49,131 for 102 sqft less living space and +$19,889 for being newer. Net adjustment: -$29,242.

12801 MARIMBA TRL, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 837 sqft Built 1987
Raw Value $311,522
Adjusted Value $250,971

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

12717 MARIMBA TRL, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 837 sqft Built 1987
Raw Value $349,886
Adjusted Value $289,335

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

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

This comparable closely matches the subject property's features.

12715 MARIMBA TRL, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 787 sqft Built 1989
Raw Value $397,621
Adjusted Value $341,265

Adjusted -$56,356 for 117 sqft less living space. Net adjustment: -$56,356.

The Neighborhood

This home is valued 9.0% 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
$365,347
Median
$335,104

This home is +9.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,371 across all districts. With a homestead exemption claimed, that drops to $5,053 — saving $1,318 per year. That's $421 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%$3,263
Williamson CountyCounty0.3694%$1,350
North Austin MUD #1MUD0.2165%$791
Austin Community Collegespecial0.1034%$378
Williamson County ESD #1 - Jollyville VFDESD0.1000%$365
Williamson County FM/RdCounty0.0443%$162
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,371

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $289,335 would pay approximately $1,806 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.

View full property details