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15433 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,098 sqftBuilt 2004

Property at a Glance

This home is estimated between $502,630 and $807,690, with a best estimate of $524,696. 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

$502,630 $807,690
Best Estimate
$524,696
WCAD Value
$749,201
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 $502,630 and $807,690. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15437 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,281 sqft Built 2003
Raw Value $587,563
Adjusted Value $524,696

Adjusted -$64,260 for 183 sqft less living space and +$1,393 for being newer. Net adjustment: -$62,867.

15429 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,400 sqft Built 2004
Raw Value $608,676
Adjusted Value $502,630

Adjusted -$106,046 for 302 sqft less living space. Net adjustment: -$106,046.

15424 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
5 bed 3 bath 1,966 sqft Built 2004
Raw Value $761,339
Adjusted Value $807,690

Adjusted +$46,351 for 132 sqft more living space. Net adjustment: +$46,351.

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 $520,132

Adjusted -$64,260 for 183 sqft less living space. Net adjustment: -$64,260.

15436 FISHER ISLAND DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 2 bath 1,875 sqft Built 2004
Raw Value $725,265
Adjusted Value $803,571

Adjusted +$78,306 for 223 sqft more living space. Net adjustment: +$78,306.

The Neighborhood

This home is valued 5.8% 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
$749,201
Median
$708,305

This home is +5.8% above the subdivision median.

Tax Analysis

The estimated annual property tax is $14,619 across all districts. With a homestead exemption claimed, that drops to $12,445 — saving $2,174 per year. That's $1,037 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%$6,691
AustinCity0.5240%$3,926
Williamson CountyCounty0.3694%$2,768
Austin Community Collegespecial0.1034%$775
Williamson County FM/RdCounty0.0443%$332
Upper Brushy Creek WCIDWater0.0170%$127
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$14,619

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $524,696 would pay approximately $3,275 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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