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15417 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,471 sqftBuilt 2004

Property at a Glance

This home is estimated between $578,844 and $696,512, with a best estimate of $651,110. 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

$578,844 $696,512
Best Estimate
$651,110
WCAD Value
$767,343
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 $578,844 and $696,512. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15413 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,179 sqft Built 2004
Raw Value $592,383
Adjusted Value $694,918

Adjusted +$102,535 for 292 sqft more living space. Net adjustment: +$102,535.

15416 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,884 sqft Built 2005
Raw Value $725,261
Adjusted Value $578,844

Adjusted -$145,024 for 413 sqft less living space and -$1,393 for being older. Net adjustment: -$146,417.

15425 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,281 sqft Built 2004
Raw Value $584,392
Adjusted Value $651,110

Adjusted +$66,718 for 190 sqft more living space. Net adjustment: +$66,718.

15409 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,301 sqft Built 2004
Raw Value $636,817
Adjusted Value $696,512

Adjusted +$59,695 for 170 sqft more living space. Net adjustment: +$59,695.

15416 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,314 sqft Built 2004
Raw Value $588,158
Adjusted Value $643,288

Adjusted +$55,130 for 157 sqft more living space. Net adjustment: +$55,130.

The Neighborhood

This home is valued 8.3% 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
$767,343
Median
$708,305

This home is +8.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,973 across all districts. With a homestead exemption claimed, that drops to $12,777 — saving $2,196 per year. That's $1,065 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%$6,853
AustinCity0.5240%$4,021
Williamson CountyCounty0.3694%$2,835
Austin Community Collegespecial0.1034%$793
Williamson County FM/RdCounty0.0443%$340
Upper Brushy Creek WCIDWater0.0170%$130
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,973

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $651,110 would pay approximately $4,064 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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