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15129 GLEN ECHO DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

6 bed3 bath1,878 sqftBuilt 2005

Property at a Glance

This home is estimated between $418,941 and $801,187, with a best estimate of $664,640. That places the property below the R251501D - Avery Ranch South median of $708,305, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$418,941 $801,187
Best Estimate
$664,640
WCAD Value
$853,950
High Confidence

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

Based on 5 comparable properties in R251501D - Avery Ranch South, this home's estimated market value is between $418,941 and $801,187. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15124 GLEN ECHO DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 1,782 sqft Built 2005
Raw Value $767,477
Adjusted Value $801,187

Adjusted +$33,710 for 96 sqft more living space. Net adjustment: +$33,710.

9213 CASTLE PINES DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,613 sqft Built 2005
Raw Value $677,034
Adjusted Value $418,941

Adjusted -$258,093 for 735 sqft less living space. Net adjustment: -$258,093.

9612 SPANISH WELLS DR, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
4 bed 3 bath 2,562 sqft Built 2006
Raw Value $742,666
Adjusted Value $501,088

Adjusted -$240,185 for 684 sqft less living space and -$1,393 for being older. Net adjustment: -$241,578.

9608 SPANISH WELLS DR, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
5 bed 4 bath 2,254 sqft Built 2007
Raw Value $799,457
Adjusted Value $664,640

Adjusted -$132,031 for 376 sqft less living space and -$2,786 for being older. Net adjustment: -$134,817.

9201 LAGUNA WOODS DR, AUSTIN, TX 78717
0.07 mi 100% similar Same subdivision
4 bed 3 bath 1,929 sqft Built 2007
Raw Value $804,126
Adjusted Value $783,431

Adjusted -$17,909 for 51 sqft less living space and -$2,786 for being older. Net adjustment: -$20,695.

The Neighborhood

This home is valued 20.6% above the R251501D - Avery Ranch South median of $708,305. With 635 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 3.8% over the past year.

R251501D - Avery Ranch South

above average
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$853,950
Median
$708,305

This home is +20.6% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,663 across all districts. With a homestead exemption claimed, that drops to $14,360 — saving $2,303 per year. That's $1,197 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%$7,627
AustinCity0.5240%$4,475
Williamson CountyCounty0.3694%$3,155
Austin Community Collegespecial0.1034%$883
Williamson County FM/RdCounty0.0443%$379
Upper Brushy Creek WCIDWater0.0170%$145
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$16,663

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $664,640 would pay approximately $4,149 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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