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15432 WHISTLING STRAITS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath1,466 sqftBuilt 2001

Property at a Glance

This home is estimated between $576,494 and $767,094, with a best estimate of $645,190. 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

$576,494 $767,094
Best Estimate
$645,190
WCAD Value
$686,203
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 $576,494 and $767,094. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15424 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,746 sqft Built 2002
Raw Value $744,904
Adjusted Value $645,190

Adjusted -$98,321 for 280 sqft less living space and -$1,393 for being older. Net adjustment: -$99,714.

15433 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 1,460 sqft Built 2003
Raw Value $724,401
Adjusted Value $723,722

Adjusted +$2,107 for 6 sqft more living space and -$2,786 for being older. Net adjustment: -$679.

15437 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,337 sqft Built 2004
Raw Value $725,974
Adjusted Value $767,094

Adjusted +$45,298 for 129 sqft more living space and -$4,178 for being older. Net adjustment: +$41,120.

15421 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.05 mi 100% similar Same subdivision
4 bed 3 bath 1,849 sqft Built 2001
Raw Value $710,983
Adjusted Value $576,494

Adjusted -$134,489 for 383 sqft less living space. Net adjustment: -$134,489.

15501 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,804 sqft Built 2003
Raw Value $723,794
Adjusted Value $602,320

Adjusted -$118,688 for 338 sqft less living space and -$2,786 for being older. Net adjustment: -$121,474.

The Neighborhood

This home is valued 3.1% below the R251501D - Avery Ranch South median of $708,305. That positions it competitively for buyers comparing within the neighborhood. 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
$686,203
Median
$708,305

This home is -3.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,390 across all districts. With a homestead exemption claimed, that drops to $11,294 — saving $2,096 per year. That's $941 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%$6,128
AustinCity0.5240%$3,596
Williamson CountyCounty0.3694%$2,535
Austin Community Collegespecial0.1034%$710
Williamson County FM/RdCounty0.0443%$304
Upper Brushy Creek WCIDWater0.0170%$117
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$13,390

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $645,190 would pay approximately $4,027 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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