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15501 BELFIN DR, AUSTIN, TX 78717

AUSTIN, 78717 — williamson County

4 bed2 bath2,453 sqftBuilt 2003

Property at a Glance

This home is estimated between $571,131 and $936,711, with a best estimate of $691,450. 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

$571,131 $936,711
Best Estimate
$691,450
WCAD Value
$913,037
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 $571,131 and $936,711. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

15509 BELFIN DR, AUSTIN, TX 78717
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,991 sqft Built 2005
Raw Value $777,267
Adjusted Value $936,711

Adjusted +$162,230 for 462 sqft more living space and -$2,786 for being older. Net adjustment: +$159,444.

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 $743,620

Adjusted +$113,421 for 323 sqft more living space and -$2,786 for being older. Net adjustment: +$110,635.

15513 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,301 sqft Built 2005
Raw Value $640,862
Adjusted Value $691,450

Adjusted +$53,374 for 152 sqft more living space and -$2,786 for being older. Net adjustment: +$50,588.

15416 BELFIN DR, AUSTIN, TX 78717
0.03 mi 100% similar Same subdivision
3 bed 2 bath 2,884 sqft Built 2005
Raw Value $725,261
Adjusted Value $571,131

Adjusted -$151,344 for 431 sqft less living space and -$2,786 for being older. Net adjustment: -$154,130.

15504 BELFIN DR, AUSTIN, TX 78717
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,854 sqft Built 2005
Raw Value $777,003
Adjusted Value $633,407

Adjusted -$140,810 for 401 sqft less living space and -$2,786 for being older. Net adjustment: -$143,596.

The Neighborhood

This home is valued 28.9% 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
$913,037
Median
$708,305

This home is +28.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $17,816 across all districts. With a homestead exemption claimed, that drops to $15,440 — saving $2,376 per year. That's $1,287 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%$8,154
AustinCity0.5240%$4,784
Williamson CountyCounty0.3694%$3,373
Austin Community Collegespecial0.1034%$944
Williamson County FM/RdCounty0.0443%$405
Upper Brushy Creek WCIDWater0.0170%$155
Road District (R02)Road0.0000%$0
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9513%$17,816

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $691,450 would pay approximately $4,316 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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