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15416 FISHER ISLAND DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

3 bed2 bath2,314 sqftBuilt 2004

Property at a Glance

This home is estimated between $512,521 and $839,340, with a best estimate of $583,475. 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

$512,521 $839,340
Best Estimate
$583,475
WCAD Value
$588,158
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 $512,521 and $839,340. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $557,504

Adjusted -$63,558 for 181 sqft less living space. Net adjustment: -$63,558.

15412 FISHER ISLAND DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
3 bed 2 bath 2,369 sqft Built 2004
Raw Value $602,788
Adjusted Value $583,475

Adjusted -$19,313 for 55 sqft less living space. Net adjustment: -$19,313.

15424 FISHER ISLAND DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 2,029 sqft Built 2004
Raw Value $739,263
Adjusted Value $839,340

Adjusted +$100,077 for 285 sqft more living space. Net adjustment: +$100,077.

15417 WHISTLING STRAITS DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,657 sqft Built 2001
Raw Value $628,786
Adjusted Value $512,521

Adjusted -$120,443 for 343 sqft less living space and +$4,178 for being newer. Net adjustment: -$116,265.

15408 FISHER ISLAND DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
4 bed 3 bath 2,056 sqft Built 2004
Raw Value $729,426
Adjusted Value $820,022

Adjusted +$90,596 for 258 sqft more living space. Net adjustment: +$90,596.

The Neighborhood

This home is valued 17.0% 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
$588,158
Median
$708,305

This home is -17.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,477 across all districts. With a homestead exemption claimed, that drops to $9,501 — saving $1,976 per year. That's $792 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%$5,253
AustinCity0.5240%$3,082
Williamson CountyCounty0.3694%$2,173
Austin Community Collegespecial0.1034%$608
Williamson County FM/RdCounty0.0443%$261
Upper Brushy Creek WCIDWater0.0170%$100
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$11,477

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $583,475 would pay approximately $3,642 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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