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15404 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

5 bed4 bath2,455 sqftBuilt 2005

Property at a Glance

This home is estimated between $459,026 and $837,139, with a best estimate of $648,519. 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

$459,026 $837,139
Best Estimate
$648,519
WCAD Value
$845,098
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 $459,026 and $837,139. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15400 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,616 sqft Built 2005
Raw Value $641,320
Adjusted Value $584,785

Adjusted -$56,535 for 161 sqft less living space. Net adjustment: -$56,535.

15408 BELFIN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,754 sqft Built 2004
Raw Value $752,119
Adjusted Value $648,519

Adjusted -$104,993 for 299 sqft less living space and +$1,393 for being newer. Net adjustment: -$103,600.

15405 FISHER ISLAND DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 3 bath 2,322 sqft Built 2004
Raw Value $789,043
Adjusted Value $837,139

Adjusted +$46,703 for 133 sqft more living space and +$1,393 for being newer. Net adjustment: +$48,096.

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 $692,287

Adjusted +$54,077 for 154 sqft more living space and +$1,393 for being newer. Net adjustment: +$55,470.

15412 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
5 bed 4 bath 3,323 sqft Built 2005
Raw Value $763,822
Adjusted Value $459,026

Adjusted -$304,796 for 868 sqft less living space. Net adjustment: -$304,796.

The Neighborhood

This home is valued 19.3% 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

above average
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$845,098
Median
$708,305

This home is +19.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $16,490 across all districts. With a homestead exemption claimed, that drops to $14,198 — saving $2,292 per year. That's $1,183 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%$7,548
AustinCity0.5240%$4,428
Williamson CountyCounty0.3694%$3,122
Austin Community Collegespecial0.1034%$874
Williamson County FM/RdCounty0.0443%$375
Upper Brushy Creek WCIDWater0.0170%$144
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$16,490

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $648,519 would pay approximately $4,048 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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