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120 KULMBACHER DR, AUSTIN, TX 78728

AUSTIN, 78728 — williamson County

3 bed2 bath941 sqftBuilt 2019

Property at a Glance

This home is estimated between $392,752 and $458,923, with a best estimate of $414,380. That places the property below the R305419C - TIMMERMANN/KB median of $476,646, in a neighborhood that declined 4.8% over the past year.

Estimated Value Range

$392,752 $458,923
Best Estimate
$414,380
WCAD Value
$448,177
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R305419C - TIMMERMANN/KB. The estimated range of $392,752 and $458,923 should be treated as a rough guide.

Comparable Properties (5)

12900 ADAK CV, AUSTIN, TX 78729
0.00 mi 72% similar
3 bed 2 bath 1,070 sqft Built 1985
Raw Value $505,376
Adjusted Value $453,605

Adjusted -$51,771 for 129 sqft less living space. Net adjustment: -$51,771.

4 bed 2 bath 980 sqft Built 1987
Raw Value $416,674
Adjusted Value $401,022

Adjusted -$15,652 for 39 sqft less living space. Net adjustment: -$15,652.

4 bed 2 bath 1,108 sqft Built 1996
Raw Value $481,401
Adjusted Value $414,380

Adjusted -$67,021 for 167 sqft less living space. Net adjustment: -$67,021.

3 bed 2 bath 1,219 sqft Built 1985
Raw Value $504,320
Adjusted Value $392,752

Adjusted -$111,568 for 278 sqft less living space. Net adjustment: -$111,568.

4 bed 2 bath 1,144 sqft Built 1987
Raw Value $540,392
Adjusted Value $458,923

Adjusted -$81,469 for 203 sqft less living space. Net adjustment: -$81,469.

The Neighborhood

This home is valued 6.0% below the R305419C - TIMMERMANN/KB median of $476,646. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.8% over the past year.

R305419C - TIMMERMANN/KB

typical
143 Properties
$476,646 Median Value
-4.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$448,177
Median
$476,646

This home is -6.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $6,845 across all districts. With a homestead exemption claimed, that drops to $5,511 — saving $1,334 per year. That's $459 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%$4,003
Williamson CountyCounty0.3694%$1,656
Austin Community Collegespecial0.1034%$463
Williamson County ESD #9 - Round RockESD0.0999%$448
Williamson County FM/RdCounty0.0443%$199
Upper Brushy Creek WCIDWater0.0170%$76
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$6,845

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $414,380 would pay approximately $2,587 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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