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15301 WHISTLING STRAITS DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath3,101 sqftBuilt 2002

Property at a Glance

This home is estimated between $718,447 and $1,102,997, with a best estimate of $807,809. 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

$718,447 $1,102,997
Best Estimate
$807,809
WCAD Value
$736,397
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 $718,447 and $1,102,997. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15305 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,965 sqft Built 2003
Raw Value $761,446
Adjusted Value $807,809

Adjusted +$47,756 for 136 sqft more living space and -$1,393 for being older. Net adjustment: +$46,363.

15300 VALDERRAMA CT, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,641 sqft Built 2002
Raw Value $696,601
Adjusted Value $858,129

Adjusted +$161,528 for 460 sqft more living space. Net adjustment: +$161,528.

15304 VALDERRAMA CT, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 3,174 sqft Built 2004
Raw Value $746,867
Adjusted Value $718,447

Adjusted -$25,634 for 73 sqft less living space and -$2,786 for being older. Net adjustment: -$28,420.

15304 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 2,218 sqft Built 2003
Raw Value $794,327
Adjusted Value $1,102,997

Adjusted +$310,063 for 883 sqft more living space and -$1,393 for being older. Net adjustment: +$308,670.

15300 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 3,081 sqft Built 2001
Raw Value $773,803
Adjusted Value $782,219

Adjusted +$7,023 for 20 sqft more living space and +$1,393 for being newer. Net adjustment: +$8,416.

The Neighborhood

This home is valued 4.0% 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
$736,397
Median
$708,305

This home is +4.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,369 across all districts. With a homestead exemption claimed, that drops to $12,211 — saving $2,158 per year. That's $1,018 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%$6,577
AustinCity0.5240%$3,859
Williamson CountyCounty0.3694%$2,721
Austin Community Collegespecial0.1034%$761
Williamson County FM/RdCounty0.0443%$326
Upper Brushy Creek WCIDWater0.0170%$125
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,369

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $807,809 would pay approximately $5,042 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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