15420 WHISTLING STRAITS DR, AUSTIN, TX 78717
AUSTIN, 78717 — williamson County
Property at a Glance
This home is estimated between $406,159 and $840,779, with a best estimate of $772,083. 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
$772,083
$567,577
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 $406,159 and $840,779. All 5 comparables are in the same subdivision, giving this estimate high confidence.
Comparable Properties (5)
Adjusted +$97,268 for 277 sqft more living space and -$1,393 for being older. Net adjustment: +$95,875.
Adjusted +$51,970 for 148 sqft more living space and -$1,393 for being older. Net adjustment: +$50,577.
Adjusted -$24,580 for 70 sqft less living space. Net adjustment: -$24,580.
Adjusted +$61,100 for 174 sqft more living space. Net adjustment: +$61,100.
Adjusted -$222,627 for 634 sqft less living space. Net adjustment: -$222,627.
The Neighborhood
This home is valued 19.9% 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
below averageThis home is -19.9% below the subdivision median.
Tax Analysis
The estimated annual property tax is $11,075 across all districts. With a homestead exemption claimed, that drops to $9,125 — saving $1,950 per year. That's $760 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
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Round Rock ISD | School | 0.8931% | $5,069 |
| Austin | City | 0.5240% | $2,974 |
| Williamson County | County | 0.3694% | $2,097 |
| Austin Community College | special | 0.1034% | $587 |
| Williamson County FM/Rd | County | 0.0443% | $252 |
| Upper Brushy Creek WCID | Water | 0.0170% | $96 |
| Road District (R02) | Road | 0.0000% | $0 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 1.9513% | $11,075 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $772,083 would pay approximately $4,819 per month (principal and interest only, excluding taxes and insurance).