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15133 GLEN ECHO DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,633 sqftBuilt 2005

Property at a Glance

This home is estimated between $644,879 and $761,897, with a best estimate of $728,673. That places the property above the R251501D - Avery Ranch South median of $708,305, in a neighborhood that declined 3.8% over the past year.

Estimated Value Range

$644,879 $761,897
Best Estimate
$728,673
WCAD Value
$746,845
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 $644,879 and $761,897. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

9209 CASTLE PINES DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,820 sqft Built 2005
Raw Value $814,580
Adjusted Value $748,915

Adjusted -$65,665 for 187 sqft less living space. Net adjustment: -$65,665.

9200 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,836 sqft Built 2005
Raw Value $762,510
Adjusted Value $691,227

Adjusted -$71,283 for 203 sqft less living space. Net adjustment: -$71,283.

9204 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 3,124 sqft Built 2005
Raw Value $901,086
Adjusted Value $728,673

Adjusted -$172,413 for 491 sqft less living space. Net adjustment: -$172,413.

9113 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 3,100 sqft Built 2005
Raw Value $808,865
Adjusted Value $644,879

Adjusted -$163,986 for 467 sqft less living space. Net adjustment: -$163,986.

9116 CASTLE PINES DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,641 sqft Built 2005
Raw Value $764,706
Adjusted Value $761,897

Adjusted -$2,809 for 8 sqft less living space. Net adjustment: -$2,809.

The Neighborhood

This home is valued 5.4% 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

typical
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$746,845
Median
$708,305

This home is +5.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,573 across all districts. With a homestead exemption claimed, that drops to $12,402 — saving $2,171 per year. That's $1,034 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%$6,670
AustinCity0.5240%$3,914
Williamson CountyCounty0.3694%$2,759
Austin Community Collegespecial0.1034%$772
Williamson County FM/RdCounty0.0443%$331
Upper Brushy Creek WCIDWater0.0170%$127
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,573

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $728,673 would pay approximately $4,548 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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