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8129 OSBORNE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath2,442 sqftBuilt 1997

Property at a Glance

This home is estimated between $487,578 and $670,691, with a best estimate of $662,289. That places the property above the R392593F - Milwood median of $450,810, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$487,578 $670,691
Best Estimate
$662,289
WCAD Value
$468,732
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R392593F - Milwood, this home's estimated market value is between $487,578 and $670,691. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8133 OSBORNE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,887 sqft Built 1998
Raw Value $441,605
Adjusted Value $665,992

Adjusted +$222,539 for 555 sqft more living space and +$1,848 for being newer. Net adjustment: +$224,387.

8137 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,420 sqft Built 1998
Raw Value $476,909
Adjusted Value $487,578

Adjusted +$8,821 for 22 sqft more living space and +$1,848 for being newer. Net adjustment: +$10,669.

8121 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,895 sqft Built 1997
Raw Value $442,958
Adjusted Value $662,289

Adjusted +$219,331 for 547 sqft more living space. Net adjustment: +$219,331.

8117 OSBORNE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,194 sqft Built 1997
Raw Value $477,278
Adjusted Value $576,719

Adjusted +$99,441 for 248 sqft more living space. Net adjustment: +$99,441.

8128 OSBORNE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,922 sqft Built 1998
Raw Value $460,338
Adjusted Value $670,691

Adjusted +$208,505 for 520 sqft more living space and +$1,848 for being newer. Net adjustment: +$210,353.

The Neighborhood

This home is valued 4.0% above the R392593F - Milwood median of $450,810. With 1,330 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 9.2% over the past year.

R392593F - Milwood

typical
1,330 Properties
$450,810 Median Value
-9.2% YoY Change
2% Have Pool
100% Have Garage
This Home
$468,732
Median
$450,810

This home is +4.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,174 across all districts. With a homestead exemption claimed, that drops to $6,837 — saving $1,337 per year. That's $570 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%$4,186
Williamson CountyCounty0.3694%$1,732
North Austin MUD #1MUD0.2165%$1,015
Austin Community Collegespecial0.1034%$485
Williamson County ESD #1 - Jollyville VFDESD0.1000%$469
Williamson County FM/RdCounty0.0443%$208
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$8,174

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $662,289 would pay approximately $4,134 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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