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15605 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed3 bath2,297 sqftBuilt 2005

Property at a Glance

This home is estimated between $587,186 and $920,473, with a best estimate of $667,807. 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

$587,186 $920,473
Best Estimate
$667,807
WCAD Value
$686,161
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 $587,186 and $920,473. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15601 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 1,925 sqft Built 2005
Raw Value $776,090
Adjusted Value $906,717

Adjusted +$130,627 for 372 sqft more living space. Net adjustment: +$130,627.

15609 BELFIN DR, AUSTIN, TX 78717
0.01 mi 100% similar Same subdivision
4 bed 3 bath 2,402 sqft Built 2005
Raw Value $704,677
Adjusted Value $667,807

Adjusted -$36,870 for 105 sqft less living space. Net adjustment: -$36,870.

15521 BELFIN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,301 sqft Built 2005
Raw Value $636,157
Adjusted Value $634,752

Adjusted -$1,405 for 4 sqft less living space. Net adjustment: -$1,405.

15613 BELFIN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,875 sqft Built 2005
Raw Value $772,289
Adjusted Value $920,473

Adjusted +$148,184 for 422 sqft more living space. Net adjustment: +$148,184.

15617 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,301 sqft Built 2005
Raw Value $588,591
Adjusted Value $587,186

Adjusted -$1,405 for 4 sqft less living space. Net adjustment: -$1,405.

The Neighborhood

This home is valued 3.1% 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

typical
635 Properties
$708,305 Median Value
-3.8% YoY Change
1% Have Pool
100% Have Garage
This Home
$686,161
Median
$708,305

This home is -3.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,389 across all districts. With a homestead exemption claimed, that drops to $11,293 — saving $2,096 per year. That's $941 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%$6,128
AustinCity0.5240%$3,596
Williamson CountyCounty0.3694%$2,535
Austin Community Collegespecial0.1034%$709
Williamson County FM/RdCounty0.0443%$304
Upper Brushy Creek WCIDWater0.0170%$117
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$13,389

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $667,807 would pay approximately $4,168 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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