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15424 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath2,029 sqftBuilt 2004

Property at a Glance

This home is estimated between $393,887 and $828,879, with a best estimate of $488,081. 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

$393,887 $828,879
Best Estimate
$488,081
WCAD Value
$739,263
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 $393,887 and $828,879. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15428 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 1,551 sqft Built 2004
Raw Value $661,031
Adjusted Value $828,879

Adjusted +$167,848 for 478 sqft more living space. Net adjustment: +$167,848.

15420 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,495 sqft Built 2004
Raw Value $621,062
Adjusted Value $457,427

Adjusted -$163,635 for 466 sqft less living space. Net adjustment: -$163,635.

15416 FISHER ISLAND DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,314 sqft Built 2004
Raw Value $588,158
Adjusted Value $488,081

Adjusted -$100,077 for 285 sqft less living space. Net adjustment: -$100,077.

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 $495,903

Adjusted -$88,489 for 252 sqft less living space. Net adjustment: -$88,489.

15429 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,734 sqft Built 2003
Raw Value $640,053
Adjusted Value $393,887

Adjusted -$247,559 for 705 sqft less living space and +$1,393 for being newer. Net adjustment: -$246,166.

The Neighborhood

This home is valued 4.4% 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
$739,263
Median
$708,305

This home is +4.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,425 across all districts. With a homestead exemption claimed, that drops to $12,264 — saving $2,161 per year. That's $1,022 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%$6,602
AustinCity0.5240%$3,874
Williamson CountyCounty0.3694%$2,731
Austin Community Collegespecial0.1034%$764
Williamson County FM/RdCounty0.0443%$328
Upper Brushy Creek WCIDWater0.0170%$126
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,425

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $488,081 would pay approximately $3,047 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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