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15425 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,281 sqftBuilt 2004

Property at a Glance

This home is estimated between $566,889 and $827,752, with a best estimate of $700,625. 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

$566,889 $827,752
Best Estimate
$700,625
WCAD Value
$584,392
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 $566,889 and $827,752. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $566,889

Adjusted -$41,787 for 119 sqft less living space. Net adjustment: -$41,787.

15420 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,130 sqft Built 2005
Raw Value $632,985
Adjusted Value $684,615

Adjusted +$53,023 for 151 sqft more living space and -$1,393 for being older. Net adjustment: +$51,630.

15433 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,098 sqft Built 2004
Raw Value $749,201
Adjusted Value $813,461

Adjusted +$64,260 for 183 sqft more living space. Net adjustment: +$64,260.

15417 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,471 sqft Built 2004
Raw Value $767,343
Adjusted Value $700,625

Adjusted -$66,718 for 190 sqft less living space. Net adjustment: -$66,718.

15424 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 2 bath 2,029 sqft Built 2004
Raw Value $739,263
Adjusted Value $827,752

Adjusted +$88,489 for 252 sqft more living space. Net adjustment: +$88,489.

The Neighborhood

This home is valued 17.5% 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 average
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$584,392
Median
$708,305

This home is -17.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,403 across all districts. With a homestead exemption claimed, that drops to $9,432 — saving $1,971 per year. That's $786 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%$5,219
AustinCity0.5240%$3,062
Williamson CountyCounty0.3694%$2,159
Austin Community Collegespecial0.1034%$604
Williamson County FM/RdCounty0.0443%$259
Upper Brushy Creek WCIDWater0.0170%$99
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$11,403

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $700,625 would pay approximately $4,373 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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