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13500 DULLES AVE, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath857 sqftBuilt 1998

Property at a Glance

This home is estimated between $189,531 and $446,775, with a best estimate of $389,944. 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

$189,531 $446,775
Best Estimate
$389,944
WCAD Value
$398,468
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 $189,531 and $446,775. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

8310 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,351 sqft Built 1999
Raw Value $385,763
Adjusted Value $189,531

Adjusted -$198,080 for 494 sqft less living space and +$1,848 for being newer. Net adjustment: -$196,232.

13508 DULLES AVE, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,006 sqft Built 1999
Raw Value $439,804
Adjusted Value $381,907

Adjusted -$59,745 for 149 sqft less living space and +$1,848 for being newer. Net adjustment: -$57,897.

8314 OSBORNE DR, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
4 bed 2 bath 995 sqft Built 1999
Raw Value $443,430
Adjusted Value $389,944

Adjusted -$55,334 for 138 sqft less living space and +$1,848 for being newer. Net adjustment: -$53,486.

8309 OSBORNE DR, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 885 sqft Built 1999
Raw Value $436,355
Adjusted Value $426,976

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

13501 DULLES AVE, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 728 sqft Built 1999
Raw Value $393,202
Adjusted Value $446,775

Adjusted +$51,725 for 129 sqft more living space and +$1,848 for being newer. Net adjustment: +$53,573.

The Neighborhood

This home is valued 11.6% 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
$398,468
Median
$450,810

This home is -11.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,948 across all districts. With a homestead exemption claimed, that drops to $5,624 — saving $1,324 per year. That's $469 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%$3,559
Williamson CountyCounty0.3694%$1,472
North Austin MUD #1MUD0.2165%$863
Austin Community Collegespecial0.1034%$412
Williamson County ESD #1 - Jollyville VFDESD0.1000%$398
Williamson County FM/RdCounty0.0443%$177
Upper Brushy Creek WCIDWater0.0170%$68
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$6,948

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $389,944 would pay approximately $2,434 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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