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15528 WHISTLING STRAITS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,047 sqftBuilt 2002

Property at a Glance

This home is estimated between $512,337 and $884,560, with a best estimate of $595,569. 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

$512,337 $884,560
Best Estimate
$595,569
WCAD Value
$775,240
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 $512,337 and $884,560. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15524 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,389 sqft Built 2002
Raw Value $659,301
Adjusted Value $539,209

Adjusted -$120,092 for 342 sqft less living space. Net adjustment: -$120,092.

15520 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,483 sqft Built 2002
Raw Value $748,669
Adjusted Value $595,569

Adjusted -$153,100 for 436 sqft less living space. Net adjustment: -$153,100.

15525 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,191 sqft Built 2003
Raw Value $777,225
Adjusted Value $725,267

Adjusted -$50,565 for 144 sqft less living space and -$1,393 for being older. Net adjustment: -$51,958.

15521 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,525 sqft Built 2002
Raw Value $701,261
Adjusted Value $884,560

Adjusted +$183,299 for 522 sqft more living space. Net adjustment: +$183,299.

9520 MORGAN CREEK DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,281 sqft Built 2002
Raw Value $594,505
Adjusted Value $512,337

Adjusted -$82,168 for 234 sqft less living space. Net adjustment: -$82,168.

The Neighborhood

This home is valued 9.5% 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
$775,240
Median
$708,305

This home is +9.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,127 across all districts. With a homestead exemption claimed, that drops to $12,921 — saving $2,206 per year. That's $1,077 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%$6,924
AustinCity0.5240%$4,062
Williamson CountyCounty0.3694%$2,864
Austin Community Collegespecial0.1034%$802
Williamson County FM/RdCounty0.0443%$344
Upper Brushy Creek WCIDWater0.0170%$132
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$15,127

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $595,569 would pay approximately $3,718 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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