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

9921 BUNDORAN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,531 sqftBuilt 2002

Property at a Glance

This home is estimated between $558,447 and $1,024,422, with a best estimate of $644,101. That places the property below the L575502C - AVERY RANCH NORTH & BROOKSIDE median of $810,250, in a neighborhood that declined 4.4% over the past year.

Estimated Value Range

$558,447 $1,024,422
Best Estimate
$644,101
WCAD Value
$628,851
High Confidence

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

Based on 5 comparable properties in L575502C - AVERY RANCH NORTH & BROOKSIDE, this home's estimated market value is between $558,447 and $1,024,422. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9913 BUNDORAN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,718 sqft Built 2002
Raw Value $717,101
Adjusted Value $1,024,422

Adjusted +$307,321 for 813 sqft more living space. Net adjustment: +$307,321.

9920 BUNDORAN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,502 sqft Built 2003
Raw Value $640,210
Adjusted Value $644,101

Adjusted +$10,962 for 29 sqft more living space and -$7,071 for being older. Net adjustment: +$3,891.

15816 ECHO HILLS DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,550 sqft Built 2003
Raw Value $675,520
Adjusted Value $661,267

Adjusted -$7,182 for 19 sqft less living space and -$7,071 for being older. Net adjustment: -$14,253.

15908 ECHO HILLS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,748 sqft Built 2003
Raw Value $729,991
Adjusted Value $640,892

Adjusted -$82,028 for 217 sqft less living space and -$7,071 for being older. Net adjustment: -$89,099.

10004 WHITLEY BAY DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,813 sqft Built 2004
Raw Value $679,187
Adjusted Value $558,447

Adjusted -$106,599 for 282 sqft less living space and -$14,141 for being older. Net adjustment: -$120,740.

The Neighborhood

This home is valued 22.4% below the L575502C - AVERY RANCH NORTH & BROOKSIDE median of $810,250. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.4% over the past year.

L575502C - AVERY RANCH NORTH & BROOKSIDE

below average
384 Properties
$810,250 Median Value
-4.4% YoY Change
0% Have Pool
100% Have Garage
This Home
$628,851
Median
$810,250

This home is -22.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,489 across all districts. With a homestead exemption claimed, that drops to $11,193 — saving $2,296 per year. That's $933 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
Leander ISDSchool1.0869%$6,835
AustinCity0.5240%$3,295
Williamson CountyCounty0.3694%$2,323
Austin Community Collegespecial0.1034%$650
Williamson County FM/RdCounty0.0443%$279
Upper Brushy Creek WCIDWater0.0170%$107
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.1451%$13,489

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $644,101 would pay approximately $4,020 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