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8109 OSBORNE DR, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

4 bed2 bath2,400 sqftBuilt 1997

Property at a Glance

This home is estimated between $471,962 and $674,929, with a best estimate of $640,374. 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

$471,962 $674,929
Best Estimate
$640,374
WCAD Value
$471,719
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 $471,962 and $674,929. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8105 OSBORNE DR, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
4 bed 2 bath 1,918 sqft Built 1997
Raw Value $447,106
Adjusted Value $640,374

Adjusted +$193,268 for 482 sqft more living space. Net adjustment: +$193,268.

8117 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,194 sqft Built 1997
Raw Value $477,278
Adjusted Value $559,878

Adjusted +$82,600 for 206 sqft more living space. Net adjustment: +$82,600.

8121 OSBORNE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,895 sqft Built 1997
Raw Value $442,958
Adjusted Value $645,448

Adjusted +$202,490 for 505 sqft more living space. Net adjustment: +$202,490.

8116 OSBORNE DR, AUSTIN, TX 78729
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,842 sqft Built 1997
Raw Value $451,187
Adjusted Value $674,929

Adjusted +$223,742 for 558 sqft more living space. Net adjustment: +$223,742.

8120 OSBORNE DR, AUSTIN, TX 78729
0.05 mi 100% similar Same subdivision
4 bed 2 bath 2,420 sqft Built 1997
Raw Value $479,981
Adjusted Value $471,962

Adjusted -$8,019 for 20 sqft less living space. Net adjustment: -$8,019.

The Neighborhood

This home is valued 4.6% 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
$471,719
Median
$450,810

This home is +4.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $8,226 across all districts. With a homestead exemption claimed, that drops to $6,888 — saving $1,338 per year. That's $574 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%$4,213
Williamson CountyCounty0.3694%$1,743
North Austin MUD #1MUD0.2165%$1,021
Austin Community Collegespecial0.1034%$488
Williamson County ESD #1 - Jollyville VFDESD0.1000%$472
Williamson County FM/RdCounty0.0443%$209
Upper Brushy Creek WCIDWater0.0170%$80
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$8,226

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $640,374 would pay approximately $3,997 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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