Beta Williamson County, TX only — data and coverage are limited during early access.

13005 IRBY PASS, AUSTIN, TX 78729

AUSTIN, 78729 — williamson County

3 bed2 bath670 sqftBuilt 1985

Property at a Glance

This home is estimated between $91,094 and $387,334, with a best estimate of $203,200. That places the property below the R390485G - Milwood Sec 28 & 29 median of $335,104, in a neighborhood that declined 8.3% over the past year.

Estimated Value Range

$91,094 $387,334
Best Estimate
$203,200
WCAD Value
$319,165
High Confidence

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

Based on 5 comparable properties in R390485G - Milwood Sec 28 & 29, this home's estimated market value is between $91,094 and $387,334. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

13007 IRBY PASS, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 655 sqft Built 1985
Raw Value $380,109
Adjusted Value $387,334

Adjusted +$7,225 for 15 sqft more living space. Net adjustment: +$7,225.

13003 IRBY PASS, AUSTIN, TX 78729
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,157 sqft Built 1985
Raw Value $325,671
Adjusted Value $91,094

Adjusted -$234,577 for 487 sqft less living space. Net adjustment: -$234,577.

13009 IRBY PASS, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,122 sqft Built 1985
Raw Value $326,748
Adjusted Value $109,030

Adjusted -$217,718 for 452 sqft less living space. Net adjustment: -$217,718.

13011 IRBY PASS, AUSTIN, TX 78729
0.02 mi 100% similar Same subdivision
3 bed 2 bath 931 sqft Built 1985
Raw Value $328,918
Adjusted Value $203,200

Adjusted -$125,718 for 261 sqft less living space. Net adjustment: -$125,718.

7602 GROVEDALE TRL, AUSTIN, TX 78729
0.03 mi 100% similar Same subdivision
3 bed 2 bath 600 sqft Built 1988
Raw Value $352,622
Adjusted Value $356,505

Adjusted +$33,717 for 70 sqft more living space and -$29,834 for being older. Net adjustment: +$3,883.

The Neighborhood

This home is valued 4.8% below the R390485G - Milwood Sec 28 & 29 median of $335,104. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 8.3% over the past year.

R390485G - Milwood Sec 28 & 29

typical
358 Properties
$335,104 Median Value
-8.3% YoY Change
0% Have Pool
97% Have Garage
This Home
$319,165
Median
$335,104

This home is -4.8% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,566 across all districts. With a homestead exemption claimed, that drops to $4,256 — saving $1,310 per year. That's $355 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%$2,850
Williamson CountyCounty0.3694%$1,179
North Austin MUD #1MUD0.2165%$691
Austin Community Collegespecial0.1034%$330
Williamson County ESD #1 - Jollyville VFDESD0.1000%$319
Williamson County FM/RdCounty0.0443%$141
Upper Brushy Creek WCIDWater0.0170%$54
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7438%$5,566

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $203,200 would pay approximately $1,268 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.

View full property details