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15401 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath1,301 sqftBuilt 2004

Property at a Glance

This home is estimated between $232,446 and $617,273, with a best estimate of $284,076. 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

$232,446 $617,273
Best Estimate
$284,076
WCAD Value
$649,375
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 $232,446 and $617,273. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15413 FISHER ISLAND DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
3 bed 2 bath 2,179 sqft Built 2004
Raw Value $592,383
Adjusted Value $284,076

Adjusted -$308,307 for 878 sqft less living space. Net adjustment: -$308,307.

15413 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
3 bed 2 bath 2,093 sqft Built 2001
Raw Value $561,419
Adjusted Value $287,488

Adjusted -$278,109 for 792 sqft less living space and +$4,178 for being newer. Net adjustment: -$273,931.

15421 FISHER ISLAND DR, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
4 bed 3 bath 1,310 sqft Built 2004
Raw Value $620,433
Adjusted Value $617,273

Adjusted -$3,160 for 9 sqft less living space. Net adjustment: -$3,160.

15416 FISHER ISLAND DR, AUSTIN, TX 78717
0.06 mi 100% similar Same subdivision
3 bed 2 bath 2,314 sqft Built 2004
Raw Value $588,158
Adjusted Value $232,446

Adjusted -$355,712 for 1,013 sqft less living space. Net adjustment: -$355,712.

15400 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,281 sqft Built 2003
Raw Value $587,563
Adjusted Value $244,832

Adjusted -$344,124 for 980 sqft less living space and +$1,393 for being newer. Net adjustment: -$342,731.

The Neighborhood

This home is valued 8.3% 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
$649,375
Median
$708,305

This home is -8.3% below the subdivision median.

Tax Analysis

The estimated annual property tax is $12,671 across all districts. With a homestead exemption claimed, that drops to $10,620 — saving $2,051 per year. That's $885 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%$5,800
AustinCity0.5240%$3,403
Williamson CountyCounty0.3694%$2,399
Austin Community Collegespecial0.1034%$671
Williamson County FM/RdCounty0.0443%$288
Upper Brushy Creek WCIDWater0.0170%$110
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$12,671

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $284,076 would pay approximately $1,773 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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