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144 KULMBACHER DR, AUSTIN, TX 78728

AUSTIN, 78728 — williamson County

2 bed2 bath1,665 sqftBuilt 2019

Property at a Glance

This home is estimated between $361,317 and $662,002, with a best estimate of $435,596. 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

$361,317 $662,002
Best Estimate
$435,596
WCAD Value
$391,347
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R305419C - TIMMERMANN/KB. The estimated range of $361,317 and $662,002 should be treated as a rough guide.

Comparable Properties (5)

148 KULMBACHER DR, AUSTIN, TX 78728
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,758 sqft Built 2019
Raw Value $398,640
Adjusted Value $361,317

Adjusted -$37,323 for 93 sqft less living space. Net adjustment: -$37,323.

140 KULMBACHER DR, AUSTIN, TX 78728
0.00 mi 94% similar Same subdivision
5 bed 3 bath 1,335 sqft Built 2019
Raw Value $529,565
Adjusted Value $662,002

Adjusted +$132,437 for 330 sqft more living space. Net adjustment: +$132,437.

3 bed 2 bath 1,633 sqft Built 2014
Raw Value $435,757
Adjusted Value $448,599

Adjusted +$12,842 for 32 sqft more living space. Net adjustment: +$12,842.

3 bed 2 bath 1,633 sqft Built 2014
Raw Value $419,975
Adjusted Value $432,817

Adjusted +$12,842 for 32 sqft more living space. Net adjustment: +$12,842.

3 bed 2 bath 1,627 sqft Built 2014
Raw Value $420,346
Adjusted Value $435,596

Adjusted +$15,250 for 38 sqft more living space. Net adjustment: +$15,250.

The Neighborhood

This home is valued 17.9% 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

below average
143 Properties
$476,646 Median Value
-4.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$391,347
Median
$476,646

This home is -17.9% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,977 across all districts. With a homestead exemption claimed, that drops to $4,654 — saving $1,323 per year. That's $388 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%$3,495
Williamson CountyCounty0.3694%$1,446
Austin Community Collegespecial0.1034%$405
Williamson County ESD #9 - Round RockESD0.0999%$391
Williamson County FM/RdCounty0.0443%$173
Upper Brushy Creek WCIDWater0.0170%$67
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$5,977

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $435,596 would pay approximately $2,719 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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