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8309 OSBORNE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath885 sqftBuilt 1999

Property at a Glance

This home is estimated between $383,058 and $462,845, with a best estimate of $399,323. That places the property below the R392593F - Milwood median of $450,810, in a neighborhood that declined 9.2% over the past year.

Estimated Value Range

$383,058 $462,845
Best Estimate
$399,323
WCAD Value
$436,355
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 $383,058 and $462,845. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8313 OSBORNE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 954 sqft Built 1998
Raw Value $412,573
Adjusted Value $383,058

Adjusted -$27,667 for 69 sqft less living space and -$1,848 for being older. Net adjustment: -$29,515.

8317 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 698 sqft Built 1998
Raw Value $389,711
Adjusted Value $462,845

Adjusted +$74,982 for 187 sqft more living space and -$1,848 for being older. Net adjustment: +$73,134.

8321 OSBORNE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 947 sqft Built 1998
Raw Value $413,996
Adjusted Value $387,288

Adjusted -$24,860 for 62 sqft less living space and -$1,848 for being older. Net adjustment: -$26,708.

8314 OSBORNE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
4 bed 2 bath 995 sqft Built 1999
Raw Value $443,430
Adjusted Value $399,323

Adjusted -$44,107 for 110 sqft less living space. Net adjustment: -$44,107.

13500 DULLES AVE, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 857 sqft Built 1998
Raw Value $398,468
Adjusted Value $407,847

Adjusted +$11,227 for 28 sqft more living space and -$1,848 for being older. Net adjustment: +$9,379.

The Neighborhood

This home is valued 3.2% below the R392593F - Milwood median of $450,810. That positions it competitively for buyers comparing within the neighborhood. 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
$436,355
Median
$450,810

This home is -3.2% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,609 across all districts. With a homestead exemption claimed, that drops to $6,278 — saving $1,331 per year. That's $523 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%$3,897
Williamson CountyCounty0.3694%$1,612
North Austin MUD #1MUD0.2165%$945
Austin Community Collegespecial0.1034%$451
Williamson County ESD #1 - Jollyville VFDESD0.1000%$436
Williamson County FM/RdCounty0.0443%$193
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$7,609

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $399,323 would pay approximately $2,493 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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